[meteorite-list] Mammoth Stew, just right
[Sorry if this appears twice; it never showed up for me.] -- Hi, EP, List, EP wrote: ...the gravitational effects of the Earth+Moon system should draw items in, gradually changing their orbits from those passing near to ones which intersect. The problem with the near miss, the close approach, the graze is that, while they will modify the orbit of the object passing by, they can (and will) change that orbit but will do so in any (and every) direction. A close pass by a little asteroid may mean you'll never seen it again or it may come back aimed right at you. It's even hard to predict the exact results of a close pass when you know the approach elements. It's really too touchy. Look at the evolution of the predictions of what everybody's favorite potential impactor, Apophis, is going to do. First, it might hit us in 2029. Then, no, it's going to miss us in 2029 and hit us in 2036. Then, no, it all depends on the gravity keyhole and whether Apophis goes through the keyhole in 2029, but even then, we won't know for sure until we can observe it after, and everybody walks away muttering More data, more data... So we might end up with only 6.3 years in which to do something because we don't know if we need to until 2030... And depending on the state the world in 2029, we might even drop the football, asteroid, whatever. Mount a mission, fail, have 14 months left. You write the script. The point is, we only hear about those approach situations where there any chance of another approach. You don't heard about the approaches when the object is gone for the next billion years! The number of objects observed in approach and never seen again, even when looked for, is quite large. There were three different orbits proposed for the huge fireball object that was observed grazing the atmosphere over Grand Teton in 1972. Now, there was a close approach! Not only were the orbits different, but one proposed that it would be back (now, when was that supposed to be?). Well, there's the Internet for you! I went to Google for orbital data on the Grand Teton fireball, and found... me! http://six.pairlist.net/pipermail/meteorite-list/2006-January/019513.html I'll just quote myself: The best source of information on the 1972 Grand Teton object is this excellent page: http://comets.amsmeteors.org/meteors/1972.html The object was detected by an Air Force satellite, which makes altitude determination possible: The object first became hot enough to be detected by the Air Force satellite at a height of 76 kilometers over Utah. Its closest distance to Earth was 58 kilometers, which occurred over Montana. As it continued its passage through the atmosphere it finally cooled below the satellite detection level at a height of 102 kilometers over Alberta. The length of the luminous path was about 1500 kilometers. In 1974, an estimate of size and mass was published in Nature, of 1000 metric tons and about 4 meters in diameter (if iron). The astronomer Jacchia published an estimate of mass based on observed luminosity of somewhere between 4000 and 1,000,000 metric tons, with a diameter of 13 to 80 meters (if a stone, more likely). Jacchia, by the way, who was a meteor expert at the Center for Astrophysics in Massachusetts, just happened to witness the fireball from Jackson Lake Lodge in the Grand Tetons! You go on a vacation, but your work just follows you... In 1994, Ceplecha re-calculated Jacchia's orbit for the object and predicted a return in 1997, which did not occur, however, so it would seem the earlier orbit was correct (or they were both wrong.) The Ultimate Authority, the Wikipedia, says 5 to 15 meters in diameter but declines to offer a mass estimate... Even at the lowest mass estimate (1000 metric tons), the object would have delivered a Hiroshima-sized punch if it had been pointed a little differently and impacted. The plane of its orbit's intersection with the Earth passed right through Los Angeles, so if its earth encounter had been delayed a few minutes, we could have had the ultimate Hollywood special effect! (Roll'em!) Since it did not come back in 1997 (it would have been detected, I think), it apparently was diverged into a differing orbit by its spectacular close pass (unless it suddenly shows up in 2022). The point is, the result of any one close approach does not have a preferred direction, like always causing closer approaches. There is one rule, though. The closer the approach, the more energy is transferred to the smaller object, a slingshot effect we use on spacecraft. Jupiter is renowned for kicking things out of the solar system by this method. Sterling K. Webb -- - Original Message - From: E.P. Grondine [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com Sent: Tuesday, December
Re: [meteorite-list] Astronauts to Comb International Space Station for Meteorite Strike
Season's Greetings, all! Technically speaking, isn't the object hitting the ISS still a meteoroid? It is, after all, still in outer space... Cheers, Pete Apologies if this topic has been previously vented. From: [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com Date: Tue, 18 Dec 2007 09:30:13 -0800 Subject: [meteorite-list] Astronauts to Comb International Space Station for Meteorite Strike http://news.theage.com.au/astronauts-comb-iss-for-meteorite-strike/20071214-1h27.html Astronauts comb ISS for meteorite strike The Age (Australia) December 14, 2007 Two astronauts on the International Space Station will make a spacewalk next week to find out if a micro-meteorite strike damaged a critical part of the outpost's power system, officials say. The station is not in any danger and is still producing enough power to support the arrival of Russian cargo ship later this month, said station deputy program manager Kirk Shireman. NASA has now announced the space shuttle Atlantis will not take off until January 10 with Europe's Columbus science module on board. That flight, originally planned for last week, was postponed when sensors in the shuttle's fuel tank failed during two launch attempts. Shireman said the power problem would probably not affect plans to attach Columbus to the station next month. But flights of Japanese modules in February and April could be affected. Without repairs, we know we can't go too much farther, he said. Station commander Peggy Whitson and flight engineer Dan Tani are scheduled for a 6.5-hour spacewalk on Tuesday to inspect two joints needed to position the station's right-side solar panels toward the sun. The primary joint, which rotates the panels 360 degrees, was locked in place in October after spacewalking astronauts during the last shuttle mission discovered metal shards inside the mechanism. Additional inspections were planned during Atlantis' mission, but the work was shifted to the station crew's schedule after the launch was postponed. An additional problem with a second joint, which lets the panels pivot even while the primary joint is locked, surfaced on December 8. It makes power generation much more difficult, Shireman said. Because several independent pieces of equipment were simultaneously affected, engineers suspect a micro-meteorite strike may be to blame. They also theorised a piece of debris may have worked itself free and floated into an area that shorted out electrical components. Spare parts to fix the second joint are on board the station, though if the problem is with the device's cables a repair would have to wait until supplies arrive on the next cargo ship or aboard the shuttle, Shireman said. This (spacewalk) is a fact-finding mission, he said. It is hoped that something the crew sees can help us narrow down the problem. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list _ Discover new ways to stay in touch with Windows Live! Visit the City @ Live today! http://getyourliveid.ca/?icid=LIVEIDENCA006 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Looking for 2x2x3/4 Clear plastic/acrylic cases
On Tue, 18 Dec 2007 19:09:37 -0500, you wrote: Hi List. Anyone know where I can buy the 2x2x3/4 clear plastic or acrylic air tight display cases. http://www.amacbox.com/products/mseries/index.html __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] eBay fraud - not a meteorite
Hi, Here's an eBay fraud (some of you might already know about it). It is item #330197565397. The guy says it's a meteorite that was found in Maine but it looks exactly like a bad quality beryl crystal. Beryl crystals are prismatic and hexagonal (they have six sides, not including their termination sides) and Maine is very famous for their beryl mines. Regards, Bob __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Has Mali Been Classified?
Dean, others, the classification of the Mali material is almost completed. NomCom submission will follow soon. I provided the classifying lab with samples of the commom lithology as well as with samples of the IMB lithologies. I do already have the preliminary data and will provide them as soon as the submission is official. Svend www.meteorite-recon.com --- I may have missed it in all of the postings but is there a classification? I just got 9 kilos of the stuff (So will have a sale posting later today or tomorrow) and this stuff is georgous. Just look at this 1785 gram Mali: http://www.ilovenewfoundland.com/meteoriteshop/1785mali.jpg If anybody has classification details please let me know Cheers DEAN Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list -- www.niger-meteorite-recon.de __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rocks from Space Picture of the Day - December 19, 2007
http://www.rocksfromspace.org/December_19_2007.html **See AOL's top rated recipes (http://food.aol.com/top-rated-recipes?NCID=aoltop000304) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] eBay fraud - not a meteorite
I collect minerals as well as meteorites, and yeah, that's a massive, obviously not gem quality beryl crystal both of which are found in Maine. It looks to be terminated and does have nice hexagonal crystalization, but it's not a meteorite. Worse part is, he has two bids on it. To add further insult to injury is the $14.00 shipping. Ron - Original Message - From: Bob Loeffler [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com Sent: Wednesday, December 19, 2007 3:06 AM Subject: [meteorite-list] eBay fraud - not a meteorite Hi, Here's an eBay fraud (some of you might already know about it). It is item #330197565397. The guy says it's a meteorite that was found in Maine but it looks exactly like a bad quality beryl crystal. Beryl crystals are prismatic and hexagonal (they have six sides, not including their termination sides) and Maine is very famous for their beryl mines. Regards, Bob __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Tunguska-- the movie
Videos on the site. http://www.sandia.gov/news/resources/releases/2007/asteroid.html Sandia supercomputers offer new explanation of Tunguska disaster Smaller asteroids may pose greater danger than previously believed ALBUQUERQUE, N.M. The stunning amount of forest devastation at Tunguska a century ago in Siberia may have been caused by an asteroid only a fraction as large as previously published estimates, Sandia National Laboratories supercomputer simulations suggest. The asteroid that caused the extensive damage was much smaller than we had thought, says Sandia principal investigator Mark Boslough of the impact that occurred June 30, 1908. That such a small object can do this kind of destruction suggests that smaller asteroids are something to consider. Their smaller size indicates such collisions are not as improbable as we had believed. Because smaller asteroids approach Earth statistically more frequently than larger ones, he says, We should be making more efforts at detecting the smaller ones than we have till now. The new simulation which more closely matches the widely known facts of destruction than earlier models shows that the center of mass of an asteroid exploding above the ground is transported downward at speeds faster than sound. It takes the form of a high-temperature jet of expanding gas called a fireball. This causes stronger blast waves and thermal radiation pulses at the surface than would be predicted by an explosion limited to the height at which the blast was initiated. Our understanding was oversimplified, says Boslough, We no longer have to make the same simplifying assumptions, because present-day supercomputers allow us to do things with high resolution in 3-D. Everything gets clearer as you look at things with more refined tools. Sandia is a National Nuclear Security Administration laboratory. The new interpretation also accounts for the fact that winds were amplified above ridgelines where trees tended to be blown down, and that the forest at the time of the explosion, according to foresters, was not healthy. Thus previous scientific estimates had overstated the devastation caused by the asteroid, since topographic and ecologic factors contributing to the result had not been taken into account. Theres actually less devastation than previously thought, says Boslough, but it was caused by a far smaller asteroid. Unfortunately, its not a complete wash in terms of the potential hazard, because there are more smaller asteroids than larger ones. Boslough and colleagues achieved fame more than a decade ago by accurately predicting that that the fireball caused by the intersection of the comet Shoemaker-Levy 9 with Jupiter would be observable from Earth. Simulations show that the material of an incoming asteroid is compressed by the increasing resistance of Earths atmosphere. As it penetrates deeper, the more and more resistant atmospheric wall causes it to explode as an airburst that precipitates the downward flow of heated gas. Because of the additional energy transported toward the surface by the fireball, what scientists had thought to be an explosion between 10 and 20 megatons was more likely only three to five megatons. The physical size of the asteroid, says Boslough, depends upon its speed and whether it is porous or nonporous, icy or waterless, and other material characteristics. Any strategy for defense or deflection should take into consideration this revised understanding of the mechanism of explosion, says Boslough. One of most prominent papers in estimating frequency of impact was published five years ago in Nature by Sandia researcher Dick Spalding and his colleagues, from satellite data on explosions in atmosphere. They can count those events and estimate frequencies of arrival through probabilistic arguments, says Boslough. The work was presented at the American Geophysical Union meeting in San Francisco on Dec. 11. A paper on the phenomenon, co-authored by Sandia researcher Dave Crawford and entitled Lowaltitude airbursts and the impact threat has been accepted for publication in the International Journal of Impact Engineering. The research was paid for by Sandias Laboratory-Directed Research and Development office. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD - Meteoritica website and auctions
Hello Listees, 10 % off for all orders over $ 100 on Meteoritica website: http://www.meteoritica.com/ We have also some auctions ending soon on eBay (Taza and NWA 4425). http://stores.ebay.com/Meteoritica Merry Christmas, Philippe Lea __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] From the really can't let it go department
This showed up at the top of Google News this morning. But when you click the link, you see no such text. http://webpages.charter.net/garrison6328/lifeinperu.jpg __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] From the really can't let it go department
Hilarious, as I was in Japan, I was getting daily threats from Randall Gregory. Habitual liar, let's see, Doctor Gregory, Attorney at Law Gregory, I bought4 kilos of Carancas Gregory, etc etc etc. He has nothing more in his pathetic life to do but to harrass me and anyone else who does not shower him with attention. Need I say more? Michael Farmer --- Darren Garrison [EMAIL PROTECTED] wrote: This showed up at the top of Google News this morning. But when you click the link, you see no such text. http://webpages.charter.net/garrison6328/lifeinperu.jpg __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] what is this meteorite
happy holidays and a precose merry christmas to all, well ,we got this new meteorite unclassified that i named as an impact melt breccia two fantastic lithologies. first black litho = exactly an impact melt breccia, segong litho= greenish with black point we could say it look like a ck, no aparent chondrule .and some aubritic inclusion in some part we could say it's an aubrite. http://www.flickr.com/photos/azizhabibi/ impact melt breccia album. slowly magnetic , has iron point all over. enjoy , all the best aziz habibi habibi aziz box 70 erfoud 52200 morroco phone. 21235576145 fax.21235576170 _ Ne gardez plus qu'une seule adresse mail ! Copiez vos mails vers Yahoo! Mail http://mail.yahoo.fr __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] mali cutter
looking for about a 100g mali for cutting slices. black shape, no(little) crust, no cracks. i need a rough looking stone and don't want to trash fine stone. UNLESS... soembody out there has pre-cut brecciated slices for sale? Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Phoenix desert fireball
for me is a satellite matteo --- mexicodoug [EMAIL PROTECTED] ha scritto: Hello List, Surprised this unprecedented video recording of a Geminid (?) long lasted splintering fireball imaged from the helicopter hasn't made it to the list yet... http://www.thisismereporting.com/view_video.php?viewkey=7ddef7f2c4f25dc8fa86 Best wishes and Life, Doug __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ ___ L'email della prossima generazione? Puoi averla con la nuova Yahoo! Mail: http://it.docs.yahoo.com/nowyoucan.html __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Near Misses
Hello list, Stated in it's smplest terms, the near miss will preturb the oribital parametersof the smaller body way more than the much larger earth. Yes ! However- The only way that the object will come back to haunt our placid life here on earth is IF the orbital parameter dealing in TIME is precisely the same time, (or some whole number multiple), or a fraction of the earth's orbit. Then and only then will we need to worry. I rather doubt the orbits of any near miss objects have this particular orbital parameter. One last thought, I do not have the computer facilites to research this, but a near miss by an object with an oddball timed orbit MAY have the errors add up so that it COULD come back to haunt us, but I doubt we will be around to worry about it. So Pete __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Imilac 2930 grams vende
Hola List Members I wish sell my last Imilac found on december 7th, a nice complete individual of 2930 grams. I accept offers over $ 17,000 USD The closing date to receive offers will be this Sunday 23 December, mid day, chilean hour. Look the short video in http://es.youtube.com/watch?v=YTgy0yHx-hE If you are interested I can send you pictures of the meteorite in situ and studio...please reply to [EMAIL PROTECTED] Saludos Rodrigo Martinez Atacama Desert Meteorites www.meteorites.cl __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] FW: BEAUTIFUL AUCTIONS ENDING TODAY-SEE HIGHLIGHTS!
From: michael cottingham [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 19, 2007 12:27 PM To: 'michael cottingham' Subject: AD: BEAUTIFUL AUCTIONS ENDING TODAY-SEE HIGHLIGHTS! Hello, Today- A 30% off on everything in my shop most end tonight with this sale. Also, many thousands of dollars worth of auctions ending tonight ALL started at 0.99 cents! Have Fun and Happy Holidays! Use This Link to Get To The Store: http://stores.ebay.com/Voyage-Botanica-Natural-History SEE ALL Auctions here- Click, or Copy and Paste! This is one of the largest and varied offerings, with major reductions that I have held in a long time worth a serious look! http://stores.ebay.com/VOYAGE-BOTANICA-NATURAL-HISTORY_W0QQcolZ4QQdirZ1QQfti dZ2QQsclZ2QQtZkm HIGHLIGHTED AUCTIONS- Worth A Look Even If You Are Not Buying An EL3 (Large Beautiful Slice) One of the best, just way too cool, 462 gram! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183531019 A $300.00 specimen of Cali, Colombia, One of my last auction pieces! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183899254 One of my Last Patagonia Silicated Slices, 8.88 gram. Starts at 0.99 cents! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183907892 Djati-Pengilon, Witnessed Fall From Indonesia-Rare. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183013167 You will not find another 290 gram CV3 Endcut Like this- Reduced by 50%! One of my finest specimens for sale! MUSEUM GRADE+ http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200182788610 NEW H5, NWA 4971, 49 gram Beauty http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200182781910 NEW L/LL4-5, NWA 4952. A really Great Specimen. Started at 0.99 cents! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200182777004 One of The LARGEST Slices (73 grams) of This HOWARDITE you will ever see started at 0.99 cents! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183915040 NWA 248 (MAIN MASS) started out at 0.99 cents! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183131135 NEW, NWA 4951, Partial Endcut, 33.19 grams! Really Pretty! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183130198 Famous COW KILLER, nice part slice, started out at 0.99 cents! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183128523 Cool Slice of Vyatka/Russia, H4/5, 39.60 gram http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183010683 NEW, NWA 4972, L4-5, Brecciated, BIG, BIG PIECE 280 gram! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200182492224 Very Rare Achondrite-3.42 grams, started out at 0.99 cents. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200182495732 NWA 2834, L5 Chondrite, 17.40 gram, NEW, Really Nice! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183009016 A 1200+ gram specimen of an extremely rare meteorite take a look! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183900646 The Brazilian Fall CAMPOS SALES nice piece. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183012214 AND, Many, Many others . THIS IS THE SALE OF THE YEAR! Thanks and Best Wishes Michael Cottingham __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Imilac 2930 grams SALE
Hola List Members I wish sell my last Imilac found on december 7th, a nice complete individual of 2930 grams. I accept offers over $ 6 USD per gram. The closing date to receive offers will be this Sunday 23 December, mid day, chilean hour. Look the short video in http://es.youtube.com/watch?v=YTgy0yHx-hE If you are interested I can send you pictures of the meteorite in situ and Studio...please reply to [EMAIL PROTECTED] Saludos Rodrigo Martinez Atacama Desert Meteorites www.meteorites.cl __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] near miss stuff
Hello list, Stated in it's smplest terms, the near miss will preturb the oribital parametersof the smaller body way more than the much larger earth. Yes ! However- The only way that the object will come back to haunt our placid life here on earth is IF the orbital parameter dealing in TIME is precisely the same time, (or some whole number multiple), or a fraction of the earth's orbit. (The earths year and the objects year or period of rotation must be the same.) Then and only then will we need to worry but I rather doubt the orbits of any near miss objects have this particular orbital parameter. One last thought, I do not have the computer facilites to research this, but a near miss by an object with an oddball timed orbit MAY have the errors add up or subtract so that it COULD come back to haunt us, but I doubt we will be around to worry about it. So Pete __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] MRO HiRISE Images - December 19, 2007
MARS RECONNAISSANCE ORBITER HIRISE IMAGES December 19, 2007 o Santa Claus Craters http://hirise.lpl.arizona.edu/PSP_006271_2210 o Chryse Planitia Surfaces http://hirise.lpl.arizona.edu/PSP_006268_1995 o Exposure of Basal Section of Polar Layered Deposits http://hirise.lpl.arizona.edu/PSP_006262_1080 o Cerberus Fossae and Surrounding Features http://hirise.lpl.arizona.edu/PSP_006234_1870 o Pang Boche Crater http://hirise.lpl.arizona.edu/PSP_005388_1975 All of the HiRISE images are archived here: http://hirise.lpl.arizona.edu/ Information about the Mars Reconnaissance Orbiter is online at http://www.nasa.gov/mro. The mission is managed by NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, for the NASA Science Mission Directorate, Washington, D.C. Lockheed Martin Space Systems, of Denver, is the prime contractor and built the spacecraft. HiRISE is operated by the University of Arizona. Ball Aerospace and Technologies Corp., of Boulder, Colo., built the HiRISE instrument. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] what is this meteorite
Amazing! After weeks I have finally cut some Dean´s NWAs and one of them is very simmilar to yours. It is quite black, very homogeneus, with absence of chondrules or metal. It is a 75g fragment with a ,what I think, is a nice fusion crust ( http://asaaf.fis.ucm.es/~paco/D469.JPG ) . The magnetic susceptibility is 3,58 in SI units. It is quite fragile and has many cracks! Any ideas? How to know its type? Cheers, Paco habibi abdelaziz escribió: happy holidays and a precose merry christmas to all, well ,we got this new meteorite unclassified that i named as an impact melt breccia two fantastic lithologies. first black litho = exactly an impact melt breccia, segong litho= greenish with black point we could say it look like a ck, no aparent chondrule .and some aubritic inclusion in some part we could say it's an aubrite. http://www.flickr.com/photos/azizhabibi/ impact melt breccia album. slowly magnetic , has iron point all over. enjoy , all the best aziz habibi habibi aziz box 70 erfoud 52200 morroco phone. 21235576145 fax.21235576170 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Imilac 2930 grams Sale
Hola List Members I wish sell my last Imilac found on december 7th, a nice complete individual of 2930 grams. I accept offers over $ 6 USD per gram. The closing date to receive offers will be this Sunday 23 December, mid day, chilean hour. Look the short video in http://es.youtube.com/watch?v=YTgy0yHx-hE If you are interested I can send you pictures of the meteorite in situ and Studio...please reply to [EMAIL PROTECTED] Saludos Rodrigo Martinez Atacama Desert Meteorites www.meteorites.cl __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD - Ebay Auctions ending
at few hours some auctions ending, take a look the low price for the Alfianello piece, ended this after the price return to the old price. http://members.ebay.com/ws/eBayISAPI.dll?ViewUserPageuserid=mcomemeteorite Matteo __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] FW: BEAUTIFUL AUCTIONS ENDING TODAY-SEE HIGHLIGHTS!
EXCUSE IF THIS IS THE SECOND TIME I JUST DONT SEE THE First One... Michael From: michael cottingham [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 19, 2007 12:27 PM To: 'michael cottingham' Subject: AD: BEAUTIFUL AUCTIONS ENDING TODAY-SEE HIGHLIGHTS! Hello, Today- A 30% off on everything in my shop most end tonight with this sale. Also, many thousands of dollars worth of auctions ending tonight ALL started at 0.99 cents! Have Fun and Happy Holidays! Use This Link to Get To The Store: http://stores.ebay.com/Voyage-Botanica-Natural-History SEE ALL Auctions here- Click, or Copy and Paste! This is one of the largest and varied offerings, with major reductions that I have held in a long time worth a serious look! http://stores.ebay.com/VOYAGE-BOTANICA-NATURAL-HISTORY_W0QQcolZ4QQdirZ1QQfti dZ2QQsclZ2QQtZkm HIGHLIGHTED AUCTIONS- Worth A Look Even If You Are Not Buying An EL3 (Large Beautiful Slice) One of the best, just way too cool, 462 gram! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183531019 A $300.00 specimen of Cali, Colombia, One of my last auction pieces! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183899254 One of my Last Patagonia Silicated Slices, 8.88 gram. Starts at 0.99 cents! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183907892 Djati-Pengilon, Witnessed Fall From Indonesia-Rare. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183013167 You will not find another 290 gram CV3 Endcut Like this- Reduced by 50%! One of my finest specimens for sale! MUSEUM GRADE+ http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200182788610 NEW H5, NWA 4971, 49 gram Beauty http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200182781910 NEW L/LL4-5, NWA 4952. A really Great Specimen. Started at 0.99 cents! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200182777004 One of The LARGEST Slices (73 grams) of This HOWARDITE you will ever see started at 0.99 cents! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183915040 NWA 248 (MAIN MASS) started out at 0.99 cents! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183131135 NEW, NWA 4951, Partial Endcut, 33.19 grams! Really Pretty! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183130198 Famous COW KILLER, nice part slice, started out at 0.99 cents! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183128523 Cool Slice of Vyatka/Russia, H4/5, 39.60 gram http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183010683 NEW, NWA 4972, L4-5, Brecciated, BIG, BIG PIECE 280 gram! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200182492224 Very Rare Achondrite-3.42 grams, started out at 0.99 cents. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200182495732 NWA 2834, L5 Chondrite, 17.40 gram, NEW, Really Nice! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183009016 A 1200+ gram specimen of an extremely rare meteorite take a look! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183900646 The Brazilian Fall CAMPOS SALES nice piece. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200183012214 AND, Many, Many others . THIS IS THE SALE OF THE YEAR! Thanks and Best Wishes Michael Cottingham __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Tunguska-- the movie
Right on the mark Darren. It speaks to many of the questions raised in the Mammoth thread in terms of frequency and potential effects of an airburst as well as impacts. The footnote to Comet Levy/Shomaker may also reminds us that impactors don't necessarily travel alone. In tandem, some strike, some vaporize and maybe some or one airburst. Jerry Flaherty - Original Message - From: Darren Garrison [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com Sent: Wednesday, December 19, 2007 9:42 AM Subject: [meteorite-list] Tunguska-- the movie Videos on the site. http://www.sandia.gov/news/resources/releases/2007/asteroid.html Sandia supercomputers offer new explanation of Tunguska disaster Smaller asteroids may pose greater danger than previously believed ALBUQUERQUE, N.M. - The stunning amount of forest devastation at Tunguska a century ago in Siberia may have been caused by an asteroid only a fraction as large as previously published estimates, Sandia National Laboratories supercomputer simulations suggest. The asteroid that caused the extensive damage was much smaller than we had thought, says Sandia principal investigator Mark Boslough of the impact that occurred June 30, 1908. That such a small object can do this kind of destruction suggests that smaller asteroids are something to consider. Their smaller size indicates such collisions are not as improbable as we had believed. Because smaller asteroids approach Earth statistically more frequently than larger ones, he says, We should be making more efforts at detecting the smaller ones than we have till now. The new simulation - which more closely matches the widely known facts of destruction than earlier models - shows that the center of mass of an asteroid exploding above the ground is transported downward at speeds faster than sound. It takes the form of a high-temperature jet of expanding gas called a fireball. This causes stronger blast waves and thermal radiation pulses at the surface than would be predicted by an explosion limited to the height at which the blast was initiated. Our understanding was oversimplified, says Boslough, We no longer have to make the same simplifying assumptions, because present-day supercomputers allow us to do things with high resolution in 3-D. Everything gets clearer as you look at things with more refined tools. Sandia is a National Nuclear Security Administration laboratory. The new interpretation also accounts for the fact that winds were amplified above ridgelines where trees tended to be blown down, and that the forest at the time of the explosion, according to foresters, was not healthy. Thus previous scientific estimates had overstated the devastation caused by the asteroid, since topographic and ecologic factors contributing to the result had not been taken into account. There's actually less devastation than previously thought, says Boslough, but it was caused by a far smaller asteroid. Unfortunately, it's not a complete wash in terms of the potential hazard, because there are more smaller asteroids than larger ones. Boslough and colleagues achieved fame more than a decade ago by accurately predicting that that the fireball caused by the intersection of the comet Shoemaker-Levy 9 with Jupiter would be observable from Earth. Simulations show that the material of an incoming asteroid is compressed by the increasing resistance of Earth's atmosphere. As it penetrates deeper, the more and more resistant atmospheric wall causes it to explode as an airburst that precipitates the downward flow of heated gas. Because of the additional energy transported toward the surface by the fireball, what scientists had thought to be an explosion between 10 and 20 megatons was more likely only three to five megatons. The physical size of the asteroid, says Boslough, depends upon its speed and whether it is porous or nonporous, icy or waterless, and other material characteristics. Any strategy for defense or deflection should take into consideration this revised understanding of the mechanism of explosion, says Boslough. One of most prominent papers in estimating frequency of impact was published five years ago in Nature by Sandia researcher Dick Spalding and his colleagues, from satellite data on explosions in atmosphere. They can count those events and estimate frequencies of arrival through probabilistic arguments, says Boslough. The work was presented at the American Geophysical Union meeting in San Francisco on Dec. 11. A paper on the phenomenon, co-authored by Sandia researcher Dave Crawford and entitled Low-altitude airbursts and the impact threat has been accepted for publication in the International Journal of Impact Engineering. The research was paid for by Sandia's Laboratory-Directed Research and Development office. __ http://www.meteoritecentral.com Meteorite-list mailing list
[meteorite-list] Fw: New Issue: Lunar meteorite Kalahari 009
RECORD MARE BASALT IN KALAHARI 009 Jerry Flaherty - Original Message - From: PSRD [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, December 19, 2007 7:37 PM Subject: New Issue: Lunar meteorite Kalahari 009 Announcement from Planetary Science Research Discoveries [PSRD] New Issue: Lunar meteorite Kalahari 009 contains fragments of basalt about 4.35 billion years old, a record-breaking old age for mare basalt. - READ: First summary paragraph for a quick overview PRINT: pdf version VIEW: short slide summary - FULL ARTICLE at: http://www.psrd.hawaii.edu/Dec07/cryptomareSample.html - PSRD is an educational web site supported by NASA's Cosmochemistry Program and the Hawaii Space Grant Consortium to share the latest research on meteorites, planets, moons, and other solar system bodies. You are subscribed to our free mailing list. We never send attachments. For more information please see http://www.psrd.hawaii.edu/PSRDsubscribe.html - Jeff Taylor and Linda Martel Hawaii Institute of Geophysics and Planetology, University of Hawaii [EMAIL PROTECTED] voice (808) 956-3899 fax (808) 956-6322 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Phoenix desert fireball
Hi Matteo, Listees, Right - BTW, what's the deal on that tremendous bolide that fell near Trieste somewhere over Slovenia, and lit up Venice like a Christmas tree a month ago, during the Leonid nights? For some reason I just received your post now in my inbox (but it has an older date - must have been a problem with some invisible server somewhere). Mike F., Chris P., Larry L. and several others like Andi and Mike B. and Anne's favorite News channel kindly pointed out that it in fact you are right and it was a satellite; even possibly two similar events were included in the video clip (ref: Chris). Either way, that doesn't make the sight any less incredible. From an observers' point of view it was a wonderful show to appreciate the return of Machines from Space (please buy my new book of this title) as an artificial bolide that dropped (ref: Mike F.) artificial meteorites under provisional classification as Aztec (or should we call them, SATILLITITES !!!) Best Wishes and Life, Doug - Original Message - From: M come Meteorite Meteorites [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com Sent: Monday, December 17, 2007 3:27 PM Subject: Re: [meteorite-list] Phoenix desert fireball for me is a satellite matteo --- mexicodoug [EMAIL PROTECTED] ha scritto: Hello List, Surprised this unprecedented video recording of a Geminid (?) long lasted splintering fireball imaged from the helicopter hasn't made it to the list yet... http://www.thisismereporting.com/view_video.php?viewkey=7ddef7f2c4f25dc8fa86 Best wishes and Life, Doug __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ ___ L'email della prossima generazione? Puoi averla con la nuova Yahoo! Mail: http://it.docs.yahoo.com/nowyoucan.html __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] near miss
Hello list, Stated in it's smplest terms, the near miss will preturb the oribital parametersof the smaller body way more than the much larger earth. Yes ! However- The only way that the object will come back to haunt our placid life here on earth is IF the orbital parameter dealing in TIME is precisely the same time, (or some whole number multiple), or a fraction of the earth's orbit. (The earths year and the objects year or period of rotation must be the same.) Then and only then will we need to worry but I rather doubt the orbits of any near miss objects have this particular orbital parameter. One last thought, I do not have the computer facilites to research this, but a near miss by an object with an oddball timed orbit MAY have the errors add up or subtract so that it COULD come back to haunt us, but I doubt we will be around to worry about it. So Pete __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Chips Off an Old Lava Flow (Lunar Meteorite Kalahari 009)
http://www.psrd.hawaii.edu/Dec07/cryptomareSample.html Chips Off an Old Lava Flow Planetary Science Research Discoveries December 19, 2007 --- Lunar meteorite Kalahari 009 contains fragments of basalt about 4.35 billion years old, a record-breaking old age for mare basalt. Written by G. Jeffrey Taylor Hawai'i Institute of Geophysics and Planetology Photogeologic and remote sensing studies of the Moon show that many light-colored, smooth areas in the highlands contain craters surrounded by dark piles of excavated debris. The dark deposits resemble the dark basalts that make up the lunar maria. They contain the same diagnostic minerals (especially high-calcium pyroxene) and chemical compositions (high iron oxide) as do mare basalts. The deposits formed when vast amounts of material ejected during the formation of giant impact basins covered pre-existing lava plains. Since the smooth plains are older than the youngest impact basin (about 3.8 billion years old), the lavas must have erupted before formation of the visible maria. In fact, they were visible maria for a while eons ago, but were buried by ejecta when the basins formed. We have samples of these ancient mare basalts. They reside in breccias collected from the lunar highlands. Age dating indicates that the chips have ages of 3.9 billion years and older. The oldest dated mare basalt in the Apollo collection is 4.23 billion years. Now Kentaro Terada (Hiroshima University, Japan), Mahesh Anand (Open University, UK), Anna Sokol and Addi Bischoff (Institute for Planetology, Muenster, Germany), and Yuji Sano (The University of Tokyo, Japan) have determined the age of pieces of an ancient lava flow in a lunar meteorite, Kalahari 009, found in Botswana in 1999. The team dated this very low-titanium mare basalt by using an ion microprobe to measure the isotopic composition of lead and uranium in phosphate minerals. They found that the basalt fragments in the rock have an age of about 4.35 (plus or minus 0.15) billion years. This overlaps with the ages of chemically-distinct igneous rocks from the highlands, indicating that diverse magmas were being produced early in the history of the Moon. Reference: * Terada, K., Anand, M., Sokol, A. K., Bischoff, A., and Sano, Y. (2007) Cryptomare Magmatism 4.35 Billion Years Ago Recorded in Lunar Meteorite Kalahari 009. Nature, v. 450, p. 849-853. PSRDpresents: Chips Off an Old Lava Flow --Short Slide Summary http://www.psrd.hawaii.edu/Dec07/PSRD-cryptomareSample.ppt (with accompanying notes). Visible and Hidden Lava Plains From the moment Galileo peered at the Moon through his homemade telescope, he recognized two main areas on the Moon (see photograph): the rugged, light-colored highlands (which he named terra) and the smoother, darker areas (maria). Maria is the Latin word for sea, which Galileo figured them might be. We did not know for sure what they were until Apollo 11 astronauts retrieved samples from Mare Tranquillitatis. They are basalts--ancient lava flows that flooded low areas, many the interiors of large impact basins. Analyses of samples and remote sensing measurements show that the maria are dark because the lavas contain a lot more FeO (iron oxide) than do highland rocks. FeO inside a mineral such as pyroxene makes it darker. In addition, the mare basalts contain less plagioclase feldspar, a light-colored mineral. Hence, the maria are dark. They are smooth in part because they are so much younger than the highlands and so did not accumulate as many craters. However, they are also smoother because lava flows fill up low areas, tending to produce smooth plains. Many areas in the highlands are smooth plains, but they are light colored, hence low in FeO. Remote sensing shows that they are not composed of mare basalts. However, many light plains deposits are decorated with impact craters surrounded by dark piles of ejecta, nicknamed dark-haloed craters. These curious features were debated for years. Finally, Pete Schultz (now at Brown University) and Paul Spudis (now at the Lunar and Planetary Institute, Houston) assembled all the available evidence to make a good case that the dark-haloed craters formed when mare basalt lava flows were covered with ejecta from large impact craters and basins, and then small craters punctured through the ejecta to toss out mare basalt. Detailed studies during the 1980s by B. Ray Hawke and Jeff Bell (University of Hawaii), and investigators elsewhere, provided further evidence that many light plains in the highlands are underlain by dark basaltic rock. In 1992, Jim Head (Brown University) and Lionel Wilson (Lancaster University, UK) named these widespread deposits cryptomaria, meaning hidden maria. Clementine images of dark-haloed craters on the Moon LEFT: Seventeen dark-haloed craters are indicated by numbers on this image mosaic from Clementine 750 nm remote sensing
[meteorite-list] Catastrophic Impacts Made Life Flourish
http://www.msnbc.msn.com/id/22298683/ Catastrophic impacts made life flourish Meteorites linked to an explosion in biodiversity millions of years ago By Dave Mosher MSNBC December 17, 2007 Space rocks are blamed for a lot of rough times on Earth, from the die-off of most marine animals some 250 million years ago to the disappearance of the dinosaurs 65 million years in the past. A new theory, however, suggests that catastrophic meteorite impacts are linked to an explosion in biodiversity about 470 million years ago, during the Ordovician Period. Within a few million years, the number of trilobite species and scores of other creatures on Earth jumped at least three to four times. Birger Schmitz, a geologist at the University of Lund in Sweden who worked for more than 10 years to help gather evidence backing up the claim, is the first to admit that his group's findings are hard to swallow. It seems completely at odds with anyone's expectations, Schmitz said, but you have to remember, for example, that it was at first difficult for many scientists to accept asteroid explanations for the disappearance of the dinosaurs. Schmitz and his colleagues detail their findings in the Dec. 16 advance issue of the journal Nature Geoscience. Smackdown Just before the jolt to Ordovician life, Schmitz said two massive bodies in the Asteroid Belt slammed into one another, littering the solar system with rocks the size of Manhattan island and ranging down to microscopic bits of dust. Even today, more than 20 percent of the meteorites we see came from this breakup event, Schmitz said. That makes the L-chondrite meteorites, as they're known, the most common kind to rain down on Earth. Such extraterrestrial rocks contain a unique form of radioactive chromium, so Schmitz and his team were able to figure out precisely when, how much and how often the cosmic debris slammed into Earth. We saw a sudden jump in meteorite material around the time of increased biodiversity, Schmitz said - greater than 100 times more material, in fact. That's a major event, and an incredible coincidence that I don't think we should ignore, he told LiveScience.com. Schmitz cautioned that while the two events line up in an uncanny way, there is still a lot of work left to do to connect the increased meteorite impacts to inflating biodiversity. It took us about 15 years to accumulate data for this finding, and it's something that isn't just a computer model or simulation. It's real, tactile evidence, he said of the work, which included slowly acid-dissolving almost a ton of rock collected from around the world to sift out bits of chromium. The scientists compared their meteorite record to layers of fossilized plants and animals, determining that the cosmic smashup happened shortly before the biodiversity boost. I expect that it will take us another 15 years of playing in the dirt to get there, to find Ordovician impact craters and beds associated with this breakup, he said. Pushing their luck Schmitz isn't certain exactly how pummeling the planet with rocks could cause life to thrive, but he thinks it has something to do with creating new nooks and crannies for life to adapt to in its new environment. Before the breakup you had primitive animals adapted to rough conditions, so you could say they were prepared for the storm, Schmitz said. Schmitz also explained that evolution is very much give-and-take, as radiating into new species requires a figurative kick in the shins. If you push an ecosystem too hard, you'll destroy it, he said. But for the organisms living on Earth at the time, [the environment] pushed them to adapt and fill new niches. It's like at the university: I tell my students all the time that if we don't push you, you don't evolve. Whether or not the cosmic smashup ultimately caused life on Earth to thrive 470 million years ago, the connection between events in space and life on Earth is intriguing, Schmitz said. There's much more to be learned how the history of Earth and its life is related to the universe, he said. We're only in the beginning of exploring that connection. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Fw: New Issue: Lunar meteorite Kalahari 009
It is too bad that Kalahari 009 was never officially weighed before it was cut. It seems that the anonymous owner could have at least given this record-breaking stone the dignity of a certified weigh-in. Using the term about 13.5 kilograms will never hold water in the record books and history will reflect on this poorly! It seems something as important as a lunar rock should at the very least be weighed accurately. I have the same issue with NWA 032 which is recorded ~300 grams. Why all these even figures? Can't the owners afford or borrow a calibrated scale? Official quote from the Meteortical Bulletin: A single stone of about 13.5 kg was found in September 1999 by an anonymous finder in front of a sand dune within the Kalahari desert, roughly 50 m apart from Kalahari 008. Best Regards, Adam --- Jerry [EMAIL PROTECTED] wrote: RECORD MARE BASALT IN KALAHARI 009 Jerry Flaherty - Original Message - From: PSRD [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, December 19, 2007 7:37 PM Subject: New Issue: Lunar meteorite Kalahari 009 Announcement from Planetary Science Research Discoveries [PSRD] New Issue: Lunar meteorite Kalahari 009 contains fragments of basalt about 4.35 billion years old, a record-breaking old age for mare basalt. - READ: First summary paragraph for a quick overview PRINT: pdf version VIEW: short slide summary - FULL ARTICLE at: http://www.psrd.hawaii.edu/Dec07/cryptomareSample.html - PSRD is an educational web site supported by NASA's Cosmochemistry Program and the Hawaii Space Grant Consortium to share the latest research on meteorites, planets, moons, and other solar system bodies. You are subscribed to our free mailing list. We never send attachments. For more information please see http://www.psrd.hawaii.edu/PSRDsubscribe.html - Jeff Taylor and Linda Martel Hawaii Institute of Geophysics and Planetology, University of Hawaii [EMAIL PROTECTED] voice (808) 956-3899 fax (808) 956-6322 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Fw: New Issue: Lunar meteorite Kalahari 009
This rock is so uncharacteristically meteoric in appearance, so terrestrial looking, I'd have tossed it had I been the one to find it. Jerry Flaherty - Original Message - From: Jerry [EMAIL PROTECTED] To: Meteorite Mailing List meteorite-list@meteoritecentral.com Sent: Wednesday, December 19, 2007 8:34 PM Subject: [meteorite-list] Fw: New Issue: Lunar meteorite Kalahari 009 RECORD MARE BASALT IN KALAHARI 009 Jerry Flaherty - Original Message - From: PSRD [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, December 19, 2007 7:37 PM Subject: New Issue: Lunar meteorite Kalahari 009 Announcement from Planetary Science Research Discoveries [PSRD] New Issue: Lunar meteorite Kalahari 009 contains fragments of basalt about 4.35 billion years old, a record-breaking old age for mare basalt. - READ: First summary paragraph for a quick overview PRINT: pdf version VIEW: short slide summary - FULL ARTICLE at: http://www.psrd.hawaii.edu/Dec07/cryptomareSample.html - PSRD is an educational web site supported by NASA's Cosmochemistry Program and the Hawaii Space Grant Consortium to share the latest research on meteorites, planets, moons, and other solar system bodies. You are subscribed to our free mailing list. We never send attachments. For more information please see http://www.psrd.hawaii.edu/PSRDsubscribe.html - Jeff Taylor and Linda Martel Hawaii Institute of Geophysics and Planetology, University of Hawaii [EMAIL PROTECTED] voice (808) 956-3899 fax (808) 956-6322 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Saturn's Rings May be Old Timers
http://www.jpl.nasa.gov/news/news.cfm?release=2007-149 Saturn's Rings May be Old Timers Jet Propulsion Laboratory December 12, 2007 SAN FRANCISCO, Calif. - New observations by NASA's Cassini spacecraft indicate the rings of Saturn, once thought to have formed during the age of the dinosaurs, instead may have been created roughly 4.5 billion years ago, when the solar system was still under construction. Larry Esposito, principal investigator for Cassini's Ultraviolet Imaging Spectrograph at the University of Colorado, Boulder, said data from NASA's Voyager spacecraft in the 1970s, and later from NASA's Hubble Space Telescope, led scientists to believe Saturn's rings were relatively youthful and likely created by a comet that shattered a large moon, perhaps 100 million years ago. But ring features seen by instruments on Cassini -- which arrived at Saturn in 2004 -- indicate the rings were not formed by a single cataclysmic event. The ages of the different rings appear to vary significantly, and the ring material is continually being recycled, Esposito said. The evidence is consistent with the picture that Saturn has had rings all through its history, said Esposito of the University of Colorado's Laboratory for Atmospheric and Space Physics. We see extensive, rapid recycling of ring material, in which moons are continually shattered into ring particles, which then gather together and re-form moons. Esposito and colleague Miodrag Sremcevic, also with the University of Colorado, are presenting these findings today in a news briefing at the meeting of the American Geophysical Union in San Francisco. We have discovered that the rings probably were not created just yesterday in cosmic time, and in this scenario, it is not just luck that we are seeing planetary rings now, said Esposito. They probably were always around but continually changing, and they will be around for many billions of years. Scientists had previously believed rings as old as Saturn itself should be darker due to ongoing pollution by the infall of meteoric dust, leaving telltale spectral signatures, Esposito said. But the new Cassini observations indicate the churning mass of ice and rock within Saturn's gigantic ring system is likely much larger than previously estimated. This helps explain why the rings overall appear relatively bright to ground-based telescopes and spacecraft. The more mass there is in the rings, the more raw material there is for recycling, which essentially spreads this cosmic pollution around, he said. If this pollution is being shared by a much larger volume of ring material, it becomes diluted and helps explain why the rings appear brighter and more pristine than we expected. Esposito, who discovered Saturn's faint F ring in 1979 using data from NASA's Pioneer 11 spacecraft, said a paper by him and his colleagues appearing in an upcoming issue of the journal Icarus supports the theory that Saturn's ring material is being continually recycled. Observing the flickering of starlight passing through the rings in a process known as stellar occultation, the researchers discovered 13 objects in the F ring ranging in size from 27 meters to 10 kilometers (30 yards to six miles) across. Since most of the objects were translucent -- indicating at least some starlight was passing through them -- the researchers concluded they probably are temporary clumps of icy boulders that are continually collecting and disbanding due to the competing processes of shattering and coming together again. The team tagged the clumpy moonlets with cat names like Mittens and Fluffy because they appear to come and go unexpectedly over time and have multiple lives, said Esposito. Esposito stressed that Saturn's rings of the future won't be the same rings we see today, likening them to great cities around the world like San Francisco, Berlin or Beijing. While the cities themselves will go on for centuries or millennia, the faces of people on the streets will always be changing due to continual birth and aging of new citizens. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate in Washington, D.C. For more information about the Cassini-Huygens mission, visit: http://saturn.jpl.nasa.gov and http://www.nasa.gov/cassini . To listen to a podcast of Esposito and view a short video animation of objects in Saturn's F ring shattering and re-forming, visit: http://www.colorado.edu/news/reports/space/. Media Contact: Carolina Martinez 818-354-9382 Jet Propulsion Laboratory, Pasadena, Calif. [EMAIL PROTECTED] Jim Scott 303-492-3114 University of Colorado, Boulder [EMAIL PROTECTED] 2007-149 __
Re: [meteorite-list] Tunguska-- the movie
Jerry: SL/9 WAS one object that got too close to Jupiter and was pulled apart by the gravity of Jupiter (probably at the same time it was being captured into an orbit around Jupiter). It also, unfortunately for it, went into an orbit that had perijove (closest point in orbit) INSIDE of Jupiter, hence the wonderful show that we got to see. This was probably not the first time this has happened to a body (comet?) and Jupiter. There are chain craters on Ganymede and Callisto that are thought to be due to the breakup of a bodies during close approaches to Jupiter that then hit the satellites. Also, the outer satellites of Jupiter are grouped and are thus thought to have been individual objects that somehow broke up (during cpture?). Larry On Wed, December 19, 2007 5:46 pm, Jerry wrote: Right on the mark Darren. It speaks to many of the questions raised in the Mammoth thread in terms of frequency and potential effects of an airburst as well as impacts. The footnote to Comet Levy/Shomaker may also reminds us that impactors don't necessarily travel alone. In tandem, some strike, some vaporize and maybe some or one airburst. Jerry Flaherty - Original Message - From: Darren Garrison [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com Sent: Wednesday, December 19, 2007 9:42 AM Subject: [meteorite-list] Tunguska-- the movie Videos on the site. http://www.sandia.gov/news/resources/releases/2007/asteroid.html Sandia supercomputers offer new explanation of Tunguska disaster Smaller asteroids may pose greater danger than previously believed ALBUQUERQUE, N.M. - The stunning amount of forest devastation at Tunguska a century ago in Siberia may have been caused by an asteroid only a fraction as large as previously published estimates, Sandia National Laboratories supercomputer simulations suggest. The asteroid that caused the extensive damage was much smaller than we had thought, says Sandia principal investigator Mark Boslough of the impact that occurred June 30, 1908. That such a small object can do this kind of destruction suggests that smaller asteroids are something to consider. Their smaller size indicates such collisions are not as improbable as we had believed. Because smaller asteroids approach Earth statistically more frequently than larger ones, he says, We should be making more efforts at detecting the smaller ones than we have till now. The new simulation - which more closely matches the widely known facts of destruction than earlier models - shows that the center of mass of an asteroid exploding above the ground is transported downward at speeds faster than sound. It takes the form of a high-temperature jet of expanding gas called a fireball. This causes stronger blast waves and thermal radiation pulses at the surface than would be predicted by an explosion limited to the height at which the blast was initiated. Our understanding was oversimplified, says Boslough, We no longer have to make the same simplifying assumptions, because present-day supercomputers allow us to do things with high resolution in 3-D. Everything gets clearer as you look at things with more refined tools. Sandia is a National Nuclear Security Administration laboratory. The new interpretation also accounts for the fact that winds were amplified above ridgelines where trees tended to be blown down, and that the forest at the time of the explosion, according to foresters, was not healthy. Thus previous scientific estimates had overstated the devastation caused by the asteroid, since topographic and ecologic factors contributing to the result had not been taken into account. There's actually less devastation than previously thought, says Boslough, but it was caused by a far smaller asteroid. Unfortunately, it's not a complete wash in terms of the potential hazard, because there are more smaller asteroids than larger ones. Boslough and colleagues achieved fame more than a decade ago by accurately predicting that that the fireball caused by the intersection of the comet Shoemaker-Levy 9 with Jupiter would be observable from Earth. Simulations show that the material of an incoming asteroid is compressed by the increasing resistance of Earth's atmosphere. As it penetrates deeper, the more and more resistant atmospheric wall causes it to explode as an airburst that precipitates the downward flow of heated gas. Because of the additional energy transported toward the surface by the fireball, what scientists had thought to be an explosion between 10 and 20 megatons was more likely only three to five megatons. The physical size of the asteroid, says Boslough, depends upon its speed and whether it is porous or nonporous, icy or waterless, and other material characteristics. Any strategy for defense or deflection should take into consideration this revised understanding of the mechanism of explosion, says Boslough. One of most prominent
Re: [meteorite-list] Fw: New Issue: Lunar meteorite Kalahari 009
It sure is not very attractive from this collector's view but none the less, a very important stone from a scientific standpoint and deserves the very best consideration including a formal weigh-in. I still do not understand all of the secrecy surrounding it and the short recovery story sure is strange! Also, that it spent no measurable time in space. How many records will this stone break before all is said and done? It is too bad its weight will never be official. Best Regards, Adam --- Jerry [EMAIL PROTECTED] wrote: This rock is so uncharacteristically meteoric in appearance, so terrestrial looking, I'd have tossed it had I been the one to find it. Jerry Flaherty - Original Message - From: Jerry [EMAIL PROTECTED] To: Meteorite Mailing List meteorite-list@meteoritecentral.com Sent: Wednesday, December 19, 2007 8:34 PM Subject: [meteorite-list] Fw: New Issue: Lunar meteorite Kalahari 009 RECORD MARE BASALT IN KALAHARI 009 Jerry Flaherty - Original Message - From: PSRD [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, December 19, 2007 7:37 PM Subject: New Issue: Lunar meteorite Kalahari 009 Announcement from Planetary Science Research Discoveries [PSRD] New Issue: Lunar meteorite Kalahari 009 contains fragments of basalt about 4.35 billion years old, a record-breaking old age for mare basalt. - READ: First summary paragraph for a quick overview PRINT: pdf version VIEW: short slide summary - FULL ARTICLE at: http://www.psrd.hawaii.edu/Dec07/cryptomareSample.html - PSRD is an educational web site supported by NASA's Cosmochemistry Program and the Hawaii Space Grant Consortium to share the latest research on meteorites, planets, moons, and other solar system bodies. You are subscribed to our free mailing list. We never send attachments. For more information please see http://www.psrd.hawaii.edu/PSRDsubscribe.html - Jeff Taylor and Linda Martel Hawaii Institute of Geophysics and Planetology, University of Hawaii [EMAIL PROTECTED] voice (808) 956-3899 fax (808) 956-6322 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Saturn's Rings May be Old Timers
Hi All: This idea is not new. Don Davis et al. published a similar model more than 20 years ago. It is also interesting how similar the artist concept of the rings in the article is to one done by Bill Hartmann something like 30 years ago. It would be nice if people gave credit where credit was due. Larry On Wed, December 19, 2007 2:41 pm, Ron Baalke wrote: http://www.jpl.nasa.gov/news/news.cfm?release=2007-149 Saturn's Rings May be Old Timers Jet Propulsion Laboratory December 12, 2007 SAN FRANCISCO, Calif. - New observations by NASA's Cassini spacecraft indicate the rings of Saturn, once thought to have formed during the age of the dinosaurs, instead may have been created roughly 4.5 billion years ago, when the solar system was still under construction. Larry Esposito, principal investigator for Cassini's Ultraviolet Imaging Spectrograph at the University of Colorado, Boulder, said data from NASA's Voyager spacecraft in the 1970s, and later from NASA's Hubble Space Telescope, led scientists to believe Saturn's rings were relatively youthful and likely created by a comet that shattered a large moon, perhaps 100 million years ago. But ring features seen by instruments on Cassini -- which arrived at Saturn in 2004 -- indicate the rings were not formed by a single cataclysmic event. The ages of the different rings appear to vary significantly, and the ring material is continually being recycled, Esposito said. The evidence is consistent with the picture that Saturn has had rings all through its history, said Esposito of the University of Colorado's Laboratory for Atmospheric and Space Physics. We see extensive, rapid recycling of ring material, in which moons are continually shattered into ring particles, which then gather together and re-form moons. Esposito and colleague Miodrag Sremcevic, also with the University of Colorado, are presenting these findings today in a news briefing at the meeting of the American Geophysical Union in San Francisco. We have discovered that the rings probably were not created just yesterday in cosmic time, and in this scenario, it is not just luck that we are seeing planetary rings now, said Esposito. They probably were always around but continually changing, and they will be around for many billions of years. Scientists had previously believed rings as old as Saturn itself should be darker due to ongoing pollution by the infall of meteoric dust, leaving telltale spectral signatures, Esposito said. But the new Cassini observations indicate the churning mass of ice and rock within Saturn's gigantic ring system is likely much larger than previously estimated. This helps explain why the rings overall appear relatively bright to ground-based telescopes and spacecraft. The more mass there is in the rings, the more raw material there is for recycling, which essentially spreads this cosmic pollution around, he said. If this pollution is being shared by a much larger volume of ring material, it becomes diluted and helps explain why the rings appear brighter and more pristine than we expected. Esposito, who discovered Saturn's faint F ring in 1979 using data from NASA's Pioneer 11 spacecraft, said a paper by him and his colleagues appearing in an upcoming issue of the journal Icarus supports the theory that Saturn's ring material is being continually recycled. Observing the flickering of starlight passing through the rings in a process known as stellar occultation, the researchers discovered 13 objects in the F ring ranging in size from 27 meters to 10 kilometers (30 yards to six miles) across. Since most of the objects were translucent -- indicating at least some starlight was passing through them -- the researchers concluded they probably are temporary clumps of icy boulders that are continually collecting and disbanding due to the competing processes of shattering and coming together again. The team tagged the clumpy moonlets with cat names like Mittens and Fluffy because they appear to come and go unexpectedly over time and have multiple lives, said Esposito. Esposito stressed that Saturn's rings of the future won't be the same rings we see today, likening them to great cities around the world like San Francisco, Berlin or Beijing. While the cities themselves will go on for centuries or millennia, the faces of people on the streets will always be changing due to continual birth and aging of new citizens. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate in Washington, D.C. For more information about the Cassini-Huygens mission, visit: http://saturn.jpl.nasa.gov and http://www.nasa.gov/cassini . To listen to a podcast of Esposito and view a short video animation of
Re: [meteorite-list] near miss stuff
Hi Pete: One other possiblity: Capture! Think about SL/9. I suspect that for the Earth/Moon system, this is not a very likely situation. Jupiter is much larger (with greater gravity) and objects passing by Jupiter will be going much slower than they would pass by Earth. Larry On Wed, December 19, 2007 2:08 pm, Peter A Shugar wrote: Hello list, Stated in it's smplest terms, the near miss will preturb the oribital parametersof the smaller body way more than the much larger earth. Yes ! However- The only way that the object will come back to haunt our placid life here on earth is IF the orbital parameter dealing in TIME is precisely the same time, (or some whole number multiple), or a fraction of the earth's orbit. (The earths year and the objects year or period of rotation must be the same.) Then and only then will we need to worry but I rather doubt the orbits of any near miss objects have this particular orbital parameter. One last thought, I do not have the computer facilites to research this, but a near miss by an object with an oddball timed orbit MAY have the errors add up or subtract so that it COULD come back to haunt us, but I doubt we will be around to worry about it. So Pete __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Mammoth Stew - first you cut up the Mammoth
Hi Sterling, Jason, all - Concerning recent impacts (12,000 years old), what I've noticed over the years is that some people go into denial, and those denial mechanisms are sometimes really pretty bizarre. It's tough to accept on a gut level that as things now sit you, your family, your friends, everyone you ever knew or loved can be blown off the face of the Earth in an instant without a minutes warning. But that's exactly how it is, and that's exactly what happened to some of our fellow human beings in the recent past. So, Jason, you wrote: Right, but seeing as the effects from the event of which we speak differ greatly from those of your comparison, it seems an unworthy one to make. Yes, an unknown phenomena might create such a set of effects as are geologically evident, but just saying it's possible is something that I acknowledge as well; we all know that Tunguska events occur and that, evidently, astronomical events that create the geological evidence that we've found occur. But that still in no way ties the two together. Fact is, Jason, the Tunsguska impactor was viewed coming in, and spherules from it have been recovered. Sorry to disappoint you, but it wasn't a flying saucer. Sterling, you wrote: Atmosphere not a factor in that size range. Yes it is. Another factor in lunar crater distribution is later coverage by dust and removal by later impacts. Jason, you wrote: I don't know where you draw the 1km crater line, as, in my opinion, such a body might well break up if it entered the atmosphere at a shallow angle, but who's to say Well, airbursts can be more devastating then ground hits, in terms of overall effect. We know compression propagation in impactors, and 1 kilometer crater seems to be a good guess as to airburst versus ground impact. Jason, you wrote: A thirty-degree impact is highly unlikely, unsupported and most likely wrong. and I'm thinking that an iron impactor would do a bit more damage than a comet. wrong. See airburst versus ground impact, above. Do you, by any chance, know what the composition of the dust layer (if it would suggest such a thing) points towards the composition of the body having been? You're confusing two different impacts here, the iron one at 31,000 BCE and the cometary one at 10,900 BCE. Why? I just don't see much metallic residue coming from a comet, though I suppose there would be some. It seems to me that the cores of the cometissimals in a comet have a nice metal content. That's where the iridium is, after all. Sterling, you wrote: 5. You say, most of the craters were formed before the [recent?] timeframe. Well, that's exactly what the argument's about, isn't it? This is the comfortable, that's all in the past argument. You've got it: denial. Did I ever tell you the one about Homo wushan? Jason, you wrote: It's not all in the past, nor have I ever said such a thing. That said, there were more impacts two billion years ago than there are today, and you know that as well as I do. Jason, if you're not in denial, then why try to make statements about the recent impacts, and then divert from the two impacts under discussion to the long term impact rate? Sterling, you wrote, most excellently: Let's review the cratering history of the solar system. After initial accretion, a tapering off. Then, at 3.8 to 3.9 billion years ago, an intense episode, the Late Bombardment, followed by an exponential decline for more than 3 billion years. Then, at 0.6 billion years ago, cratering rates begin to rise dramatically, until 0.4 billion years ago, when they have increased fourfold in 0.2 billion years. They again decline. until 125-100 million years ago, when they increase, roughly doubling. A great summary, which leaves us with significant questions concerning meteorites and their parent bodies - and answers which are only now gradually being accepted. The role of comets, stellar encounters, Oort Cloud shenanigans, asteroidal family dustups is all unclear and yet to be pinned down. Good old ignorance. Yes indeed. Lack of science budget helps in this too, as well as the behaviour of certain individuals (ahem!) who control those budgets. Jason, you wrote: What I'm trying to say is that given that there are x number of craters on the moon, we would need to know the age of each to determine a good number for the rate of impacts over the past, say, 50,000 years, which would be relevant to this discussion. Undoubtedly this information will be provided by the next series of manned landings on the Moon. Jason, you wrote: Well, then climate change could well have been the culprit - but what cause the climate change is, I think, still open to discussion. Actually, no it is not. That discussion has finished. When you have a layer of extra-terrestrial material and impactites such as has been demonstrated to exist, fact replaces speculation. And that those iron bits, if they are from a meteorite, didn't come from
[meteorite-list] Happy Holidays
Hello all Happy Holidays from Nakhla Dog Meteorites. Enjoy 10% off for the rest of 2007 A few items not on the site, prices are before the discount: A 0.289 gram Ensisheim fragment priced at $150 Mundrabilla small irons at $2 per gram Small cherry picked Sikhotes at $2 per gram EL3 polished slices and endcuts up to 20 POUNDS at $0.20 per gram Small Al Mahbas pallasite fragments at $6 per gram Small Mali pieces for $2 per gram NWA mesosiderite at $1.50 per gram Brenham coins $80 ...looks like somebody needs to update Rob Wesel http://www.nakhladogmeteorites.com -- We are the music makers... and we are the dreamers of the dreams. Willy Wonka, 1971 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] eBay fraud - not a meteorite
Hi Ron, Yes, it's terminated on at least one end, but I still wouldn't pay a dime for it. (I'm a mineral collector also.) I just sent an e-mail to eBay's customer support. It probably won't help, but can't hurt. Regards, Bob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ron Sent: Wednesday, December 19, 2007 6:43 AM To: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] eBay fraud - not a meteorite I collect minerals as well as meteorites, and yeah, that's a massive, obviously not gem quality beryl crystal both of which are found in Maine. It looks to be terminated and does have nice hexagonal crystalization, but it's not a meteorite. Worse part is, he has two bids on it. To add further insult to injury is the $14.00 shipping. Ron - Original Message - From: Bob Loeffler [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com Sent: Wednesday, December 19, 2007 3:06 AM Subject: [meteorite-list] eBay fraud - not a meteorite Hi, Here's an eBay fraud (some of you might already know about it). It is item #330197565397. The guy says it's a meteorite that was found in Maine but it looks exactly like a bad quality beryl crystal. Beryl crystals are prismatic and hexagonal (they have six sides, not including their termination sides) and Maine is very famous for their beryl mines. Regards, Bob __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] QMIG UPDATE/S
Listoids Firstly a very merry XMAS and happy new year to listoids QIG update - http://www.qmig.org I have started to scan and webpublish some of the very olde and hard-to-find artikles on Queensland meteorites First up woz an article on the Rockhampton meteorite - this was found by accident researching the history of Tenham... Tenham of course is still one of my faves - many of the older Queensland finds cluster in and around the Tenham strewnfield - I have another 7 new finds from the Tenham strewnfield undergoing classification thru JCU and yet another 4 new finds from Windorah which aint too far from the Tenham strewnfield in terms of meteorite trajectories - more undoubtedly will be found... More artikles to follow over the next few days - Gladstone, Glenormiston, Tenham - maybe a few other odds'n'sods - most of these are damn hard to resource so tis worthwhile to webpublish them Its been a depressing feeling researching some of the olde artikles - you start to realise just how much is missing in action, lost, stolen, illegally exported or just plain cut into small pieces for sale with nothing at all left for any public institution. All you have to do is look up the Queensland finds on metsoc to realise which of the major players and doyens of the meteorite community have been involved in illegal export - you'd be surprised once you figure out exactly who... I am planning a limited edition Tenham meteorite medallion - tis difficult to find any pictures of the Hammond family holding or with some Tenham stones but I have found one which I suspect will be the artwork for the front of the medallion If any listoids can share similar photos would they please contact me off-list ? BNHM are u there ? Any hints on how to best sacrifice a small individual for the fragments for the insert of the medallion would also be appreciated Thats about it for now - I'm on holidays... tho I have to kapture a baggie of Tenham individuals soon (600 g total - largest = 220 g)... hopefully will have new accessions early in the new year - more Winton stones - more polished thin-sections and full-slices of some of the Queensland irons... lots of projects planned or underway... its been a big year and next year should be more exciting... Cheers __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
