[meteorite-list] request for NASA contact person
Hello list, Im currently working on a small paper regarding the standards of meteorite photo-documentation. In this regard I sent an email to a NASA representative listed at the ANSMET page as contact person. I was asking for information on NASA's standards of meteorite photography, but did not receive any response. Can somebody provide a contact to a curator or another relevant NASA representative willing to answer a few specific questions on this issue? thanks for your efforts in advance Svend www.niger-meteorite-recon.de __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] 100 year old meteorite story from Sweden
Hi Sterling, Thanks for this information, I find it interesting and useful for my own studies. However, I do not expect it to be the fossil story original mentioned by Göram. Not because I know much about sedimentary meteorite falls, but because I know a thing or two about alleged fossil-bearing spacerocks from the 19th century press. It would surprise me if Swedish newspapers didn't publish a report about a meteorite that remained hot for an impossibly long time and contained organic fossils, simply because that was the fashion at the time. Best wishes, Chris On 9/7/05, Sterling K. Webb [EMAIL PROTECTED] wrote: Hi, You're probably referring to: BLECKENSTAD, Ostergotland, Sweden, April 11, 1925 A meteor was observed, leaving a trail of smoke. Stones are said to have fallen, and fragments of a white, porous limestone were picked up, differing from the local rocks. The possibly meteoritic nature of this material has been the subject of considerable discussion, N. Zenzen (1942, 1943); A. Hadding (1943); F.C. Cross (1947). Pseudometeorite, F.E. Wickman A. Uddenberg-Anderson (1982). __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] 100 year old meteorite story from Sweden
Hi Folks! If this is the stone I'm thinking of, Zenzen, who was head of the Sweden Geological Survey or Museum, or equivalent official and a prominent geologist, wrote extensively on it. The witness account is perfectly consistently with the real thing and the stone is fossilerous limestone. I think this indicates a new question: Are sedimentary meteorites possibible? People mostly don´t think about this problem and so this problem don´t exist! We all knew, that we have rocks from Mars, but this rocks are only igneous! Why most people don´t accept, that sedimantary rocks could be hard enough to survive a impact (and this is the main problem) and become meteorites? I don´t know how many of you ever piced up a hammer and go out in the field to have a look to terrestrial rocks. I´ve made this since I´m 8 years old and I´ve seen a lot of sed. rocks hard enough to do so. There are sed. rocks on the Mars that´s sure, so why not a Mars sandstone or limestone? And what´s about planetary metamorphic rocks (not shock met.).? Just a few wild thoughts Ingo/Germany --- Ursprüngliche Nachricht --- Von: Sterling K. Webb [EMAIL PROTECTED] An: [EMAIL PROTECTED], Meteorite-list@meteoritecentral.com Betreff: Re: [meteorite-list] 100 year old meteorite story from Sweden Datum: Tue, 06 Sep 2005 19:17:18 -0500 Hi, You're probably referring to: BLECKENSTAD, Ostergotland, Sweden, April 11, 1925 A meteor was observed, leaving a trail of smoke. Stones are said to have fallen, and fragments of a white, porous limestone were picked up, differing from the local rocks. The possibly meteoritic nature of this material has been the subject of considerable discussion, N. Zenzen (1942, 1943); A. Hadding (1943); F.C. Cross (1947). Pseudometeorite, F.E. Wickman A. Uddenberg-Anderson (1982). If this is the stone I'm thinking of, Zenzen, who was head of the Sweden Geological Survey or Museum, or equivalent official and a prominent geologist, wrote extensively on it. The witness account is perfectly consistently with the real thing and the stone is fossilerous limestone. All that happened is that he ruined his reputation and lost his job. Sad. I posted a long investigation report about it and it may still be in the archives if they go back far enough. The explanation is blindingly simple. It's a terrestrial meteorite., blasted off the Earth by impact and returned to the Earth 100,000's of years later, instead of wandering the System or ending up on Mars or Venus... The simulations of interplanetary transport by Melosh, Gladman, and others, always show a fair percentage of impact liberated materials returning to their world of origin. Nininger found a fossilliferous meteorite too, with a thin calcinated fusion crust and wrote, briefly, about it, but he, unlike Zenzen, knew when to shut up. Sterling K. Webb -- chris aubeck wrote: Hi, Last year, on September 21st, I received a reply on this list from Göran Axelsson which ended, enigmatically: As a sidenote there were a meteorite found in sweden almost 100 years ago with fossiles in it. Anyone want to debunk that one? :-) /Göran I was seriously interested in seeing a copy of the original article, but unfortunately Mr. Axelsson didn't reply. Can anyone tell me anything about it? This is exactly what I collect and study. Best wishes, Chris __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list -- GMX DSL = Maximale Leistung zum minimalen Preis! 2000 MB nur 2,99, Flatrate ab 4,99 Euro/Monat: http://www.gmx.net/de/go/dsl __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite Raffle Major Update
But not enough yet, if we aim for an average of each list member having one ticket, hh :-) Wow, a hunting trip - that's really the coolest prize! Buckleboo! - Original Message - From: batkol [EMAIL PROTECTED] To: Notkin [EMAIL PROTECTED]; Meteorite List meteorite-list@meteoritecentral.com Sent: Wednesday, September 07, 2005 4:43 AM Subject: Re: [meteorite-list] Meteorite Raffle Major Update As of today, you have raised more than $2,300 for the Red Cross. Hats off to everyone who pitched in. holy mudhead mackeral, that's quite an impressive figure. good work! - Original Message - From: Notkin [EMAIL PROTECTED] To: Meteorite List meteorite-list@meteoritecentral.com Sent: Tuesday, September 06, 2005 9:32 PM Subject: [meteorite-list] Meteorite Raffle Major Update Dear Friends and Listees: Greetings all. I have just completed a major update to our 2005 Meteorite Charity Raffle project, and I think you will all be surprised by the quality, quantity, and ingenuity of these prizes. Newest additions have been placed at the top of the page for ease of viewing. We will shortly be breaking the prizes up into groupings: First Prize, Second Prize, etc. There will be MULTIPLE prizes awarded. I have also received a kind offer of numerous smaller items, which we will not have time to list on the site, but we will use them to make sure that as many people as possible go home with a nice meteorite memento from our charity raffle. Thanks to Steve Arnold IMB for organizing that. Here is the updated prize page: http://www.aerolite.org/meteorite-raffle.htm In addition, a few especially rare and collectible items have been offered to the project, and we are considering a series of special auctions on Ebay for those donated items, after the Denver show. More on that later. If someone would like to volunteer to help with Ebay sales, please let me know. I will have to stop accepting raffle prizes within the next couple of days. If you have something you'd like to donate, please don't delay (last minute additions may be accepted but will not appear on the website). Ticket sales continue. PLEASE NOTE: The cut-off date for ticket sales is Monday, September 12. If I have not received your payment by that date, you will not be eligible to participate in the prize drawing, sorry. We will try to accommodate last-minute cash ticket sales during the Denver Show, but I am making no promises. Payments can be made through PayPal (use link on raffle page), or you can mail personal checks (made out to the American Red Cross please) to me at: Geoffrey Notkin P.O. Box 36652 Tucson, AZ 85740 Anne Black of the Denver COMETS has kindly offered to receive prizes by mail, on our behalf in Denver. She will post her mailing address shortly. Blaine Reed has kindly offered to display prizes in his room during the Denver Show. We suggest that our friends in Europe who have donated prizes do not mail them at this time. We will ask you to mail prizes directly to the winners, following the drawing. As of today, you have raised more than $2,300 for the Red Cross. Hats off to everyone who pitched in. More news when I have it : ) Best to all, Geoff N. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: RARE INDEPENDENCE, MO FULL SLICE
Ryan kindly wrote: I am looking to quickly sell a 11.53g full slice of the hard to aquire Independece, MO L6. ...a great story goes with this one. A classic American fall. Hi Ryan and All, There is a wonderful story that goes with this stone, and if anyone is interested, here is an article I wrote about the discovery of Independence (by Allen Shaw, a Meteorite List member!) for The Meteorite Times: http://www.meteoritetimes.com/Back_Links/2002/June/Accretion_Desk.htm In this article, I mention my 19.8g slice. I have since upgraded Independence in my collection from that slice to the main mass (;- ) Happy reading. Martin __ Click here to donate to the Hurricane Katrina relief effort. http://store.yahoo.com/redcross-donate3/ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Chondrites support Miller-Urey experiment atmo assumptons
http://news-info.wustl.edu/news/page/normal/5513.html Calculations favor reducing atmosphere for early earth Was Miller-Urey experiment correct? By Tony Fitzpatrick Sept. 7, 2005 — Using primitive meteorites called chondrites as their models, earth and planetary scientists at Washington University in St. Louis have performed outgassing calculations and shown that the early Earth's atmosphere was a reducing one, chock full of methane, ammonia, hydrogen and water vapor. In making this discovery Bruce Fegley, Ph.D., Washington University professor of earth and planetary sciences in Arts Sciences, and Laura Schaefer, laboratory assistant, reinvigorate one of the most famous and controversial theories on the origins of life, the 1953 Miller-Urey experiment, which yielded organic compounds necessary to evolve organisms. Chondrites are relatively unaltered samples of material from the solar nebula, According to Fegley, who heads the University's Planetary Chemistry Laboratory, scientists have long believed them to be the building blocks of the planets. However, no one has ever determined what kind of atmosphere a primitive chondritic planet would generate. We assume that the planets formed out of chondritic material, and we sectioned up the planet into layers, and we used the composition of the mix of meteorites to calculate the gases that would have evolved from each of those layers, said Schaefer. We found a very reducing atmosphere for most meteorite mixes, so there is a lot of methane and ammonia. In a reducing atmosphere, hydrogen is present but oxygen is absent. For the Miller-Urey experiment to work, a reducing atmosphere is a must. An oxidizing atmosphere makes producing organic compounds impossible. Yet, a major contingent of geologists believe that a hydrogen-poor, carbon dioxide-rich atmosphere existed because they use modern volcanic gases as models for the early atmosphere. Volcanic gases are rich in water, carbon dioxide, and sulfur dioxide but contain no ammonia or methane. Geologists dispute the Miller-Urey scenario, but what they seem to be forgetting is that when you assemble the Earth out of chondrites, you've got slightly different gases being evolved from heating up all these materials that have assembled to form the Earth. Our calculations provide a natural explanation for getting this reducing atmosphere, said Fegley. Schaefer presented the findings at the annual meeting of the Division of Planetary Sciences of the American Astronomical Society, held Sept. 4-9 in Cambridge, England. Schaefer and Fegley looked at different types of chondrites that earth and planetary scientists believe were instrumental in making the Earth. They used sophisticated computer codes for chemical equilibrium to figure out what happens when the minerals in the meteorites are heated up and react with each other. For example, when calcium carbonate is heated up and decomposed, it forms carbon dioxide gas. Different compounds in the chondritic Earth decompose when they're heated up, and they release gas that formed the earliest Earth atmosphere, Fegley said. The Miller-Urey experiment featured an apparatus into which was placed a reducing gas atmosphere thought to exist on the early Earth. The mix was heated up and given an electrical charge and simple organic molecules were formed. While the experiment has been debated from the start, no one had done calculations to predict the early Earth atmosphere. I think these computations hadn't been done before because they're very difficult; we use a special code said Fegley, whose work with Schaefer on the outgassing of Io, Jupiter's largest moon and the most volcanic body in the solar system, served as inspiration for the present early Earth atmosphere work. NASA's Astrobiology Institute supported this work. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] hope creek, ak
i am looking for a 15-25g solid hope creek, ak piece and some lake okeechobee, fl. if anybody was this for sale, please email off list. i will be gradually switching over to yahoo mail (it has 100 FREE megs of storage). please cc to: [EMAIL PROTECTED] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Chondrites support Miller-Urey experiment atmo assumptons
Darren kindly posted: http://news-info.wustl.edu/news/page/normal/5513.html Was Miller-Urey experiment correct? Hi all, Nobel Laureate Harold Urey was both instrumental in meteorite science with his (and his students) discoveries, as well as pushing students in new directions due to disagreements with him. As Urey studied meteorites, he tended to lean towards a large (planetary) source for their origin. However, others disagreed and felt that smaller bodies (asteroids) were the source of meteorites. Obviously Urey lost that battle. While the Miller-Urey experiment is likely the most influential and memorable contribution Urey made to science, in essence his work led many to conclude that he was the first to apply modern science to the study of the solar system, and the person who pushed the term cosmochemistry into popular science usage. Urey was also leader in hte movement to reclassify meteorites according to chemical criteria rather than physical looks. Here is a link to an Accretion Desk article I wrote about Urey and meteorites for the Meteorite Times: http://www.meteoritetimes.com/Back_Links/2004/october/Accretion_Desk.htm Happy reading again. Martin __ Click here to donate to the Hurricane Katrina relief effort. http://store.yahoo.com/redcross-donate3/ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] MRO's HiRISE Camera Turned On
CAMERA'S TRIP TO MARS IS NO LEISURE CRUISE FOR HiRISE TEAM From Lori Stiles, University Communications, UA, 520-621-1877 September 07, 2005 --- Contact information listed below --- The High-Resolution Imaging Science Experiment (HiRISE) camera is rocketing toward Mars, and it's no leisure cruise for the camera operations team at The University of Arizona campus in Tucson either. The team turned the HiRISE camera on Friday (Sept. 2). NASA launched the Mars Reconnaissance Orbiter (MRO) and its science payload, which includes the HiRISE camera, on Aug. 12. HiRISE -- the largest telescopic camera sent beyond Earth's orbit -- and five other MRO instruments will inspect the red planet in unprecedented detail and assist future landers. The spacecraft will travel more than four times the distance to Mars before entering Mars' orbit on March 10, 2006. For the next year, the HiRISE team in Tucson will train new members joining the project, write volumes of new software, image celestial objects to check how their camera operates post-launch, and practice as if their camera already were in orbit. UA Professor Alfred S. McEwen leads HiRISE. We're very excited, and we're working very hard, said Eric Eliason, who manages the HiRISE Operations Center (HiROC) at the UA's Lunar and Planetary Laboratory. Eliason and the rest of the HiROC team is responsible for most of the ground data system work for the HiRISE camera. Observation planning, uplink, downlink, instrument monitoring, and data processing and analysis will all be done at HiROC, which is located in the UA's C.P. Sonett Space Sciences Building. We'll get our first images tomorrow (Sept. 8) as the spacecraft slews our camera over the moon and then over Omega Centauri, Eliason said. The spacecraft is flying so fast that the moon will already look very small - fewer than 200 pixels across. But we think we're going to get some really pretty pictures of Omega Centauri. And we'll know very quickly how well our instrument is working. Plans are for HiRISE to make other sets of star observations on Oct. 4 - 5, Nov. 5 and Dec. 13 - 14. The October images will show very precisely how MRO navigation cameras are aligned with HiRISE. The November images will help the HiRISE team fine-tune their camera's focus to get the sharpest images possible. The December images will show how vibrations from different spacecraft instruments may affect HiRISE images. These observations will also help us to characterize the optical distortion of our lens, and what processing methods we'll need to correct for whatever distortion we see, Eliason said. The 145-pound (65 kg) HiRISE camera features a 20-inch (half-meter) primary mirror. Developed by Ball Aerospace Technologies Corp., Boulder, Co., the $40 million HiRISE camera will take ultra-sharp photographs over 3.5-mile (6 kilometer) swaths of the martian landscape, resolving rocks and other geologic features as small as 40 inches (one meter) across. It will take pictures in stereo and color while it flies at more than 7,800 mph (3 and 1/2 km per second) about 190 miles (300 km) above Mars' surface. After entering Mars's orbit in March 2006, the MRO will gradually adjust its elliptical orbit to a circular orbit by aerobraking, a technique that creates drag using the friction of careful dips into the planet's upper atmosphere. The spacecraft's 25-month primary science phase begins in November 2006. The HiROC team expects to process 1,000 gigantic high-resolution images and 9,000 smaller high-resolution images during the science phase of the MRO mission. The MRO mission is managed by JPL, a division of the California Institute of Technology, Pasadena, for the NASA Science Mission Directorate. Lockheed Martin Space Systems, Denver, prime contractor for the project, built the spacecraft. --- Contact Information Eric Eliason 520-626-0764 [EMAIL PROTECTED] Alfred S. McEwen 520-621-4573 [EMAIL PROTECTED] Related Web sites http://marsoweb.nas.nasa.gov/HiRISE/ http://hirise.lpl.arizona.edu/ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Martian Volcanoes May Be Active
http://news.bbc.co.uk/1/hi/sci/tech/4219858.stm Martian volcanoes 'may be active' By Paul Rincon BBC News September 7, 2005 Fields of volcanic cones discovered at the North Pole of Mars suggest the Red Planet could still be geologically active, scientists have said. The cones, seen in images from Europe's Mars Express probe, have no blemishes from impact craters. This suggests the volcanoes erupted very recently and that the sites could have ongoing volcanism. Mars Express scientist Gerhard Neukum presented the results at a conference in Cambridge. Mars is a planet that was very recently active - maybe one, or two, or three million years ago. And in some areas, I have the impression it is really ongoing, said Dr Neukum, of the Free University in Berlin, Germany. Future eruptions But what cannot be determined is when, if at all, some of these volcanoes might erupt again: It could be a million years from now, it could be tomorrow, he added. Dr Neukum acts as the principal investigator for the High Resolution Stereo Camera (HRSC) on Mars Express, which took the images in which the cones were discovered. There may be 50-100 of the volcanic cones covering a flank of the North Pole about one million square kilometres in area. They are between 300m (980ft) and 600m (1,970ft) tall, said Dr Neukum. In addition to the North Pole, other regions with recent - and possibly ongoing - activity on Mars include parts of Tharsis - home to the volcano Olympus Mons - parts of Elysium and the so-called highland-lowland boundary. By counting the number of craters on the surfaces of Solar System objects, scientists can estimate the age of those surfaces. If they are heavily cratered, they are deemed older, while smoother surfaces are considered younger. This assumes a constant cratering rate since the heavy bombardment that terrestrial planets underwent about four billion years ago. Fresh cones The cones appear to be fresh with no discernible evidence of cratering. Dr Neukum admitted it was possible the cones could be ancient features that have been eroded by wind, but added that this was unlikely. I don't see any wind-related features in the region. We should see it and we should see the remains of craters somewhere. But we don't, he told the BBC News website. Volcanic activity appeared to have peaked on Mars at around 1.5 billion years ago, Dr Neukum said, adding: Mars is still active within certain limits; it's still not dead. Dr Neukum thinks that volcanic activity strongly influences glacial activity on Mars. This is because on the Red Planet, eruptions also mobilise water. In some cases, this water freezes and forms glaciers, says Dr Neukum. But other scientists believe glacial activity on the planet is more strongly influenced by the inclination of Mars in its orbit around the Sun. The Mars Express results were presented at the American Astronomical Society Division of Planetary Sciences meeting in Cambridge, UK. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Mars Global Surveyor Images: September 1-7, 2005
MARS GLOBAL SURVEYOR IMAGES September 1-7, 2005 The following new images taken by the Mars Orbiter Camera (MOC) on the Mars Global Surveyor spacecraft are now available: o Cut By Troughs (Released 1 September 2005) http://www.msss.com/mars_images/moc/2005/09/01 o Defrosting Sand (Released 2 September 2005) http://www.msss.com/mars_images/moc/2005/09/02 o Polygons and Craters (Released 3 September 2005) http://www.msss.com/mars_images/moc/2005/09/03 o Sediments of Terby (Released 4 September 2005) http://www.msss.com/mars_images/moc/2005/09/04 o Caught in the Act (Released 5 September 2005) http://www.msss.com/mars_images/moc/2005/09/05 o Mars at Ls 288 Degrees (Released 6 September 2005) http://www.msss.com/mars_images/moc/2005/09/06 o Tharsis Limb Cloud (Released 7 September 2005) http://www.msss.com/mars_images/moc/2005/09/07 All of the Mars Global Surveyor images are archived here: http://www.msss.com/mars_images/moc/index.html Mars Global Surveyor was launched in November 1996 and has been in Mars orbit since September 1997. It began its primary mapping mission on March 8, 1999. Mars Global Surveyor is the first mission in a long-term program of Mars exploration known as the Mars Surveyor Program that is managed by JPL for NASA's Office of Space Science, Washington, DC. Malin Space Science Systems (MSSS) and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, CA. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, CA and Denver, CO. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite Raffle Major Update
Hi Martin all, If each person listing themselves on Meteorite Exchange as a Meteorite Dealer (there are 135 of them) bought 10 tickets and the other list members each bought 1 ticket, it would be over $18,000. If everyone bought only 1 ticket, it would still be about $6,000. Best wishes, Michael on 9/7/05 3:23 AM, Martin Altmann at [EMAIL PROTECTED] wrote: But not enough yet, if we aim for an average of each list member having one ticket, hh :-) Wow, a hunting trip - that's really the coolest prize! Buckleboo! - Original Message - From: batkol [EMAIL PROTECTED] To: Notkin [EMAIL PROTECTED]; Meteorite List meteorite-list@meteoritecentral.com Sent: Wednesday, September 07, 2005 4:43 AM Subject: Re: [meteorite-list] Meteorite Raffle Major Update As of today, you have raised more than $2,300 for the Red Cross. Hats off to everyone who pitched in. holy mudhead mackeral, that's quite an impressive figure. good work! - Original Message - From: Notkin [EMAIL PROTECTED] To: Meteorite List meteorite-list@meteoritecentral.com Sent: Tuesday, September 06, 2005 9:32 PM Subject: [meteorite-list] Meteorite Raffle Major Update Dear Friends and Listees: Greetings all. I have just completed a major update to our 2005 Meteorite Charity Raffle project, and I think you will all be surprised by the quality, quantity, and ingenuity of these prizes. Newest additions have been placed at the top of the page for ease of viewing. We will shortly be breaking the prizes up into groupings: First Prize, Second Prize, etc. There will be MULTIPLE prizes awarded. I have also received a kind offer of numerous smaller items, which we will not have time to list on the site, but we will use them to make sure that as many people as possible go home with a nice meteorite memento from our charity raffle. Thanks to Steve Arnold IMB for organizing that. Here is the updated prize page: http://www.aerolite.org/meteorite-raffle.htm In addition, a few especially rare and collectible items have been offered to the project, and we are considering a series of special auctions on Ebay for those donated items, after the Denver show. More on that later. If someone would like to volunteer to help with Ebay sales, please let me know. I will have to stop accepting raffle prizes within the next couple of days. If you have something you'd like to donate, please don't delay (last minute additions may be accepted but will not appear on the website). Ticket sales continue. PLEASE NOTE: The cut-off date for ticket sales is Monday, September 12. If I have not received your payment by that date, you will not be eligible to participate in the prize drawing, sorry. We will try to accommodate last-minute cash ticket sales during the Denver Show, but I am making no promises. Payments can be made through PayPal (use link on raffle page), or you can mail personal checks (made out to the American Red Cross please) to me at: Geoffrey Notkin P.O. Box 36652 Tucson, AZ 85740 Anne Black of the Denver COMETS has kindly offered to receive prizes by mail, on our behalf in Denver. She will post her mailing address shortly. Blaine Reed has kindly offered to display prizes in his room during the Denver Show. We suggest that our friends in Europe who have donated prizes do not mail them at this time. We will ask you to mail prizes directly to the winners, following the drawing. As of today, you have raised more than $2,300 for the Red Cross. Hats off to everyone who pitched in. More news when I have it : ) Best to all, Geoff N. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list -- Beware the fury of a patient man. John Dryden -- http://costofwar.com/index-world-hunger.html __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD - NEW Lunar - NWA 3160 other Auctions
Dear list members, We are pleased to announce a new lunar meteorite, NWA 3160. It is an Olivine-Phyric Mare Basalt. This particular meteorite has two lithologies, a Mare Basalt and an Olivine-Gabbro. I have listed 18 specimens on eBay, most with the Buy it Now option under my seller name, naturesvault. Here is a link to one of the auctions: NWA 3160 Olivine-Phyric Mare Basalt Lunar Meteorite http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=6559636103rd=1sspagename=STRK%3AMESE%3AITrd=1 To see all of the 18 lunar specimens, click on the above link and then click on View seller's other items. That, or go to eBay and search for items by seller, naturesvault. I also have many rare auctions ending in a few hours, several still at just 99 cents. Great deals will be had today. Tonight I will be listing some of the unclassified material I brought back from my last Morocco trip. The supply is still drying up at a noticeable pace so I bought up as many stock piles as I could find, which really wasn't much. I will be offering unclassified material in both single stone form and in 1 kilo lots over the next several weeks so be sure to check back each week to see new material. Next week I will start the single stones along with the lots. Tonight will be some 1 kilo lots (ordinary chondrites and 869 material). Best regards, Greg Hupe The Hupe Collection naturesvault (eBay) [EMAIL PROTECTED] IMCA 2185 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: 15 kilo sikhote Alin closing in 3 hours!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=6558759631 Don't let this sucker get away so cheap! Selling right now several hundred dollars under what I paid YEARS ago! Mike Farmer Se you all in Denver next week. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NWA 3160 Lithology
Hi List, Some have already asked about the major basalt lithology in NWA 3160. We listed pieces with single and dual lithologies, NWA 3160 was over 90% basalt and this image demonstrates how closely it looks like NWA 032/479: http://cgi.ebay.com/NWA-3160-Olivine-Phyric-Mare-Basalt-Lunar-Meteorite_W0QQitemZ6559635438QQcategoryZ3239QQrdZ1QQcmdZViewItem Check it out, this is one awesome lunaite. Take Care, Adam __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ceres May Be 'Mini Planet' with Water Ice
http://hubblesite.org/newscenter/newsdesk/archive/releases/2005/27/text/ Release Number: STScI-2005-27 Contact: Dolores Beasley NASA Headquarters, Washington (Phone: 202/358-1753) Susan Hendrix Goddard Space Flight Center, Greenbelt, Md (Phone: 301/286-7745) Donna Weaver Space Telescope Science Institute, Baltimore (Phone: 410-338-4493) Largest Asteroid May Be 'Mini Planet' with Water Ice September 7, 2005 Observations of 1 Ceres, the largest known asteroid, have revealed that the object may be a mini planet, and may contain large amounts of pure water ice beneath its surface. The observations by NASA's Hubble Space Telescope also show that Ceres shares characteristics of the rocky, terrestrial planets like Earth. Ceres' shape is almost round like Earth's, suggesting that the asteroid may have a differentiated interior, with a rocky inner core and a thin, dusty outer crust. Ceres is an embryonic planet, said Lucy A. McFadden of the Department of Astronomy at the University of Maryland, College Park and a member of the team that made the observations. Gravitational perturbations from Jupiter billions of years ago prevented Ceres from accreting more material to become a full-fledged planet. The finding will appear Sept. 8 in a letter to the journal Nature. The paper is led by Peter C. Thomas of the Center for Radiophysics and Space Research at Cornell University in Ithaca, N.Y., and also includes project leader Joel William Parker of the Department of Space Studies at Southwest Research Institute in Boulder, Colo. Ceres is approximately 580 miles (930 kilometers) across, about the size of Texas. It resides with tens of thousands of other asteroids in the main asteroid belt. Located between Mars and Jupiter, the asteroid belt probably represents primitive pieces of the solar system that never managed to accumulate into a genuine planet. Ceres comprises 25 percent of the asteroid belt's total mass. However, Pluto, our solar system's smallest planet, is 14 times more massive than Ceres. The astronomers used Hubble's Advanced Camera for Surveys to study Ceres for nine hours, the time it takes the asteroid to complete a rotation. Hubble snapped 267 images of Ceres. From those snapshots, the astronomers determined that the asteroid has a nearly round body. The diameter at its equator is wider than at its poles. Computer models show that a nearly round object like Ceres has a differentiated interior, with denser material at the core and lighter minerals near the surface. All terrestrial planets have differentiated interiors. Asteroids much smaller than Ceres have not been found to have such interiors. The astronomers suspect that water ice may be buried under the asteroid's crust because the density of Ceres is less than that of the Earth's crust, and because the surface bears spectral evidence of water-bearing minerals. They estimate that if Ceres were composed of 25 percent water, it may have more water than all the fresh water on Earth. Ceres' water, unlike Earth's, would be in the form of water ice and located in the mantle, which wraps around the asteroid's solid core. Besides being the largest asteroid, Ceres also was the first asteroid to be discovered. Sicilian astronomer Father Giuseppe Piazzi spotted the object in 1801. Piazzi was looking for suspected planets in a large gap between the orbits of Mars and Jupiter. As more such objects were found in the same region, they became known as asteroids or minor planets. http://hubblesite.org/newscenter/newsdesk/archive/releases/2005/27/image/a Hubble Tracks Ceres STScI-PRC2005-27 NASA's Hubble Space Telescope took these images of the asteroid 1 Ceres over a 2-hour and 20-minute span, the time it takes the Texas-sized object to complete one quarter of a rotation. One day on Ceres lasts 9 hours. Hubble snapped 267 images of Ceres as it watched the asteroid make more than one rotation. By observing the asteroid during a full rotation, astronomers confirmed that Ceres has a nearly round body like Earth's. Ceres' shape suggests that its interior is layered like those of terrestrial planets such as Earth. Ceres may have a rocky inner core, an icy mantle, and a thin, dusty outer crust inferred from its density and rotation rate. The bright spot that appears in each image is a mystery. It is brighter than its surroundings. Yet it is still very dark, reflecting only a small portion of the sunlight that shines on it. Ceres is approximately 580 miles (930 kilometers) across and is the largest known asteroid. It resides with tens of thousands of other asteroids in a region between the orbits of Mars and Jupiter called the main asteroid belt. Besides being the largest asteroid, Ceres also was the first to be discovered, in 1801. Astronomers enhanced the contrast in these images to bring out important features on Ceres' surface. The observations were made in visible and in
[meteorite-list] Ceres Might Contain More Fresh Water than Earth
http://www.space.com/scienceastronomy/050907_ceres_planet.html Largest Asteroid Might Contain More Fresh Water than Earth By Bjorn Carey space.com 07 September 2005 The largest known asteroid could contain more fresh water than Earth and looks like our planet in other ways, according to a new study that further blurs the line between planets and large space rocks. Astronomers took 267 images of asteroid Ceres using the Hubble Space Telescope. From these images and subsequent computer simulations, they suggest Ceres may have a rocky inner core and a thin, dusty outer crust. A team led by Peter Thomas of Cornell University said today that Ceres is nearly spherical, which suggests that gravity controls its shape. Also, the asteroid's non-uniform shape indicates that material is not evenly distributed throughout the inside. These and other new clues, including Ceres' low density, point to an interior loaded with frozen water, the astronomers said. The results are detailed in the Sept. 8 issue of the journal Nature. Big and round Ceres has long been considered one of the tens of thousands of asteroids that make up the asteroid belt between Mars and Jupiter. At 580 miles (930 km) in diameter - about the size of Texas - it's the largest asteroid in the belt, accounting for about 25 percent of the belt's total mass. Astronomers had thought Ceres might never have been heated enough to create layers of material. But computer models now suggest Ceres has a differentiated interior - dense material in the core and lighter stuff near the surface. Possible configurations include a mantle rich in water ice around a rocky core. If this mantle is composed of at least 25 percent water, Ceres would have more fresh water than Earth, according to a statement released by the Space Telescope Science Institute, which operates Hubble for NASA and the European Space Agency. The most likely scenario from the knowledge we have on how other objects form, it probably has a rocky core and a mantle. That mantle is probably some watery, icy mix, with other dirt and constituents. That mantle could be as much as ¼ of the whole object, study coauthor Joel Parker of the Southwest Research Institute told SPACE.com. Even though it's a small object compared to Earth, there could be a lot of water. On Earth, fresh water makes up only a thin layer just a few miles deep in some places, less in others. The water layer proposed for Ceres, while smaller in circumference, is many miles thicker. The total volume of water on Earth is about 1.4 billion cubic kilometers, around 41 million of which is fresh water. If Ceres' mantle accounts for 25 percent of the asteroid's mass, that would translate to an upper limit of 200 million cubic kilometers of water, Parker said. Since all the nine regular planets have differentiated interiors, this new view of Ceres has some astronomers calling Ceres a mini-planet, adding fuel to an ongoing debate over exactly what qualifies as a planet. Embroyonic world Other researchers recently announced the discovery of 2003 UB313, a round object in our solar system 1-1/2 times larger than Pluto and about three times further away from the Sun. But even an object of this size - at 2,100 miles in diameter roughly four times the size of Ceres - doesn't receive universal endorsement as being a planet. One astronomer, Brian Marsden, who runs the Minor Planet Center where data on small bodies is collected, says that if Pluto is considered a planet, then any other round worlds should also be considered planets. Under this definition, which some other astronomers subscribe to, Ceres 2003 UB313 and a handful of other large objects would be named planets. The alternative, Marsden and others say, is to stop calling Pluto a planet. Another explanation is that Ceres is a sort of 'baby' planet - an underdeveloped version of Earth and other rocky planets. Looked at this way, Ceres appears as other fledgling planets might have looked more than 4 billion years ago. The leading theory for planet formation holds that small rocks collided, stuck and gradually grew. Depending on location and orbit, a developing world may or may not have encountered enough raw material to become as large as the four traditional rocky planets. Ceres is an embryonic planet, said observation team member Lucy McFadden of the Department of Astronomy at the University of Maryland. Gravitational perturbations from Jupiter billions of years ago prevented Ceres from accreting more material to become a full-fledged planet. In 2015 scientists will get a close up look at Ceres when the NASA Dawn mission orbits the asteroid. A closer look should provide more clues about the asteroid's composition. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Deep Impact Collision Ejected the Stuff of Life
http://www.newscientistspace.com/article/dn7961-deep-impact-collision-ejected-the-stuff-of-life.html Deep Impact collision ejected the stuff of life Maggie McKee New Scientist 07 September 2005 Millions of kilograms of fine dust particles and water and a surprisingly high amount of organic molecules sprayed into space when NASA crashed its Deep Impact spacecraft into Comet 9P/Tempel 1 on 4 July 2005, reveal a trio of new studies. The observations bolster theories that comets may have seeded Earth with the raw materials for life and suggest they may be sponge-like - rather than hardened - at their cores. On 4 July, about 80 telescopes on Earth and in space trained their sights on Comet Tempel 1 when a 370-kilogram copper impactor was sent hurtling into its path. Just after the smash, a bright vapour plume spewed from the surface at about 5 kilometres per second, followed quickly by a stream of particles that spread into a cone. The cone appeared to remain attached to the comet's surface for about 22 hours before separating into a detached arc. Researchers used this gravitational attraction to estimate the mass and density of the comet's main body, or nucleus. They found that the 72 trillion kilogram-nucleus was extremely porous, with as much as 80% of its volume taken up by empty space. That tells me there is no solid layer all the way down to the centre, says Mike A'Hearn, the mission's principal investigator at the University of Maryland in College Park, US. He says he had expected that the ice might become denser towards the core of the nucleus, but that instead probably all the way in, ice is all in the form of tiny grains. A touch crumbly It's like a sponge, with a lot of cavities, agrees Horst Uwe Keller, an astronomer at the Max-Planck Institute for Solar System Research in Germany. He observed the event with Europe's Rosetta spacecraft and says the discovery confirms previous observations suggesting other comets are also porous. When you touch it, it just crumbles under your hands. Observers estimate the impact released about 5 million kilograms of water from beneath the comet's surface and between two and five times as much dust. There was so much dust, in fact, that mission members have not been able to see the impact crater with the high-resolution camera on the mission's flyby spacecraft, about 500 km away. To add to the problem, that camera was malfunctioning but now image-processing techniques may have revealed a glimpse of the crater and team members may release the image later on Wednesday. Building blocks The team estimates the impact blasted away a crater about 100 metres wide and up to 30 m deep. Crucially, organic molecules were among the material ejected. Neither the full range of molecules nor their abundances have been determined yet, but researchers say they have found a surprisingly high amount of methyl cyanide, a molecule seen in large quantities in another comet. This supports theories that comets may have brought water and the building blocks of life to Earth, and the team hopes to eventually identify all the species comets brought in abundance to early Earth, says A'Hearn. The observations have also apparently ruled out another theory - that impacts with other objects may be responsible for the occasional stream of gas and dust seen coming off of comets. Although Tempel 1's surface is pockmarked with craters ranging from 40 m to 400 m across, astronomers watching the comet both before and after the impact noticed that it released the streams relatively often in spurts of activity apparently triggered by sunlight. I don't think the hypothesis that outbursts are caused by impacts is really valid, says A'Hearn. Probably comets undergo outbursts like this very frequently and the fact that everyone was looking intensively [at this comet] for an extended period allowed us to see phenomena that are probably common and weren't seen before. Journal reference: Science (DOI: 10.1126/science.1118923) __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] The Next Mother Lode: Mars
If I was a druggie, I'd say give me some of what they are smoking. http://www.wired.com/news/space/0,2697,68739,00.html Space entrepreneurs eyeing Mars as a hub of some future solar system economy launched a startup on Tuesday to mine the red planet for building materials. The new company, 4Frontiers, plans to mine Mars for building materials and energy sources, and export the planet's mineral wealth to forthcoming space stations on the moon and elsewhere. The company also wants to build the first permanent human settlement on Mars, using strictly Martian materials, as early as 2025. The idea is to make Mars a center for needs of the solar system economy, said Bruce Mackenzie, co-founder of 4Frontiers and the company's vice president and outreach director. Mars happens to be a good place for these crucial minerals, said Mackenzie. You have them all in one spot. Carbon, nitrogen and hydrogen are all scarce on the moon, but readily available on Mars, said Joseph Palaia, 4Frontiers' other co-founder and vice president of operations and research and development. And while oxygen is available in both locations, it is easier to extract on Mars, he said. 4Frontiers (the four being the Earth, moon, Mars and the main asteroid belt) will be ready in 2025 with the tools that space explorers will need to colonize the solar system, said Bruno Marino, a consultant to the company. What makes this group so unique is that it is all about getting on the surface of Mars and making the settlement, said Marino. We are ready to set up shop as soon as we can get on the surface. Marino was director of science and research at Biosphere 2, an enclosed ecosystem built to model extraterrestrial settlements. The experimental facility, in Arizona, is now on the block. Biosphere 2 provided much of the inspiration and lessons learned for facilities planned for a future Mars settlement, said Marino. 4Frontiers' settlement plan faces some challenges, however, namely the harsh Martian environment, with its nasty chemicals and radiation, said Molly Macauley, a senior fellow specializing in space policy at Resources for the Future, a Washington, D.C., institute concerned with environmental and energy issues. Macauley said she would not support any government funding for the startup. But if it flies on its own through private financing, said Macauley, it sounds great. 4Frontiers' business plan is based on research done by the Mars Foundation, a group that has been working on ways to fund and build a Martian settlement with local materials. In fact, the two groups have close ties. Mackenzie also co-founded the Mars Foundation and was executive director of the Mars Society and a board member of the National Space Society. It will be many years before 4Frontiers is mining Mars and doling out mineral rights to Martian prospectors. So the company has several moneymaking schemes for the near term. One plan is to build a full-scale version of the planned Mars settlement and charge visitors to tour the Mars Settlement Research and Outreach Center. 4Frontiers hopes to have a site selected for the center by the end of this year, said company co-founder and CEO Mark Homnick. We've narrowed the search to New Mexico, Central Florida or Colorado, he said. In addition, the company plans to develop technologies with immediate market value, according its business plan. The group will sell any technology it develops to companies operating on Earth, as well as those participating in NASA's Earth, Moon, Mars and Beyond space exploration program. (4Frontiers also hopes to consult to these organizations.) The company has already applied to patent a technology for making plastics on Mars using Martian materials. 4Frontiers will also be hiring soon, said Homnick. We're not shooting blanks, said Homnick. We need to staff up. Our message to recent college graduates is, 'You can go with a large corporation, give up some of your freedom and most of your dreams. Or, if you have freedom in your heart, courage to face the unknown and discipline to deliver, contact us.' __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NASA's Spitzer and Deep Impact Build Recipe for Comet Soup
MEDIA RELATIONS OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109 TELEPHONE (818) 354-5011 http://www.jpl.nasa.gov Whitney Clavin (818) 354-4673 Jet Propulsion Laboratory, Pasadena, Calif. News Release 2005-144 Sept. 7, 2005 NASA's Spitzer and Deep Impact Build Recipe for Comet Soup When Deep Impact smashed into comet Tempel 1 on July 4, 2005, it released the ingredients of our solar system's primordial soup. Now, astronomers using data from NASA's Spitzer Space Telescope and Deep Impact have analyzed that soup and begun to come up with a recipe for what makes planets, comets and other bodies in our solar system. The Deep Impact experiment worked, said Dr. Carey Lisse of Johns Hopkins University's Applied Physics Laboratory, Laurel, Md. We are assembling a list of comet ingredients that will be used by other scientists for years to come. Lisse is the team leader for Spitzer's observations of Tempel 1. He presented his findings this week at the 37th annual meeting of the Division of Planetary Sciences in Cambridge, England. Spitzer watched the Deep Impact encounter from its lofty perch in space. It trained its infrared spectrograph on comet Tempel 1, observing closely the cloud of material that was ejected when Deep Impact's probe plunged below the comet's surface. Astronomers are still studying the Spitzer data, but so far they have spotted the signatures of a handful of ingredients, essentially the meat of comet soup. These solid ingredients include many standard comet components, such as silicates, or sand. And like any good recipe, there are also surprise ingredients, such as clay and chemicals in seashells called carbonates. These compounds were unexpected because they are thought to require liquid water to form. How did clay and carbonates form in frozen comets? asked Lisse. We don't know, but their presence may imply that the primordial solar system was thoroughly mixed together, allowing material formed near the Sun where water is liquid, and frozen material from out by Uranus and Neptune, to be included in the same body. Also found were chemicals never seen before in comets, such as iron-bearing compounds and aromatic hydrocarbons, found in barbecue pits and automobile exhaust on Earth. The silicates spotted by Spitzer are crystallized grains even smaller than sand, like crushed gems. One of these silicates is a mineral called olivine, found on the glimmering shores of Hawaii's Green Sands Beach. Planets, comets and asteroids were all born out of a thick soup of chemicals that surrounded our young Sun about 4.5 billion years ago. Because comets formed in the outer, chilly regions of our solar system, some of this early planetary material is still frozen inside them. Having this new grocery list of comet ingredients means theoreticians can begin testing their models of planet formation. By plugging the chemicals into their formulas, they can assess what kinds of planets come out the other end. Now, we can stop guessing at what's inside comets, said Dr. Mike A'Hearn, principal investigator for the Deep Impact mission, University of Maryland, College Park. This information is invaluable for piecing together how our own planets as well as other distant worlds may have formed. NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages the Spitzer Space Telescope mission for NASA's Science Mission Directorate, Washington. Science operations are conducted at the Spitzer Science Center at Caltech. The University of Maryland, College Park, conducted the overall mission management for Deep Impact, and JPL handled project management for the mission for NASA's Science Mission Directorate. For more graphics and more information about Spitzer, visit http://www.spitzer.caltech.edu/Media/index.shtml . For more information about Deep Impact, visit http://deepimpact.jpl.nasa.gov or http://www.nasa.gov/deepimpact . For more information about NASA, visit http://www.nasa.gov/home/ . -end- __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
RE: [meteorite-list] NWA 3160 Lithology
I have to concur - when i had my piece of this stuff at Al Lang's place to be cut I had it side by side with his piece of nwa 032 - looking at the basalt portion if you didnt know the olivine gabbro was a diffrent meteorite you would swear it was 032. one awsome lunite is right From: Adam Hupe [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] NWA 3160 Lithology Date: Wed, 7 Sep 2005 12:32:06 -0700 Hi List, Some have already asked about the major basalt lithology in NWA 3160. We listed pieces with single and dual lithologies, NWA 3160 was over 90% basalt and this image demonstrates how closely it looks like NWA 032/479: http://cgi.ebay.com/NWA-3160-Olivine-Phyric-Mare-Basalt-Lunar-Meteorite_W0QQitemZ6559635438QQcategoryZ3239QQrdZ1QQcmdZViewItem Check it out, this is one awesome lunaite. Take Care, Adam __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ben Guerir TKW and TAW
Hello I want ask about TKW of Benguerir. We know that many pieces of Ben Guerir was recovered by scientists from Marrocan University/Museum. From Met Bulletin: TKW 25-30kg, main mass, Oakes. Some other pieces are in the Moroccan CNRST So my question is: TKW contain only specimens collected by Maroccans + Oakes main mass or only Maroccans or mayb its aproximatelly value of complete fall, including specimens hidden in basement by local people and dealers ? My next question is what is TAW (Total Available Weight) of this fall. How many kilos from TKW is in market or/and dealers/collectors hands and how many closed in Morocco museums ? I know this should be difficult to answer, but Im just curious, and maybe we can exchange some interesting informations. -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryt.net [EMAIL PROTECTED] http://www.PolandMET.com [EMAIL PROTECTED] http://www.Gao-Guenie.com GSM +48(607)535 195 [ Member of Polish Meteoritical Society ] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Ben Guerir TKW and TAW
Gee, I would define Total Available Weight as that material which is accessible and ready for use in scientific research. This would include the pieces in Morocco museums, but not pieces in the hands of collectors. Availability is a matter of perspective and access, which is different for different people. Jeff At 05:21 PM 9/7/2005, Meteoryt.net wrote: Hello I want ask about TKW of Benguerir. We know that many pieces of Ben Guerir was recovered by scientists from Marrocan University/Museum. From Met Bulletin: TKW 25-30kg, main mass, Oakes. Some other pieces are in the Moroccan CNRST So my question is: TKW contain only specimens collected by Maroccans + Oakes main mass or only Maroccans or mayb its aproximatelly value of complete fall, including specimens hidden in basement by local people and dealers ? My next question is what is TAW (Total Available Weight) of this fall. How many kilos from TKW is in market or/and dealers/collectors hands and how many closed in Morocco museums ? I know this should be difficult to answer, but Im just curious, and maybe we can exchange some interesting informations. -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryt.net [EMAIL PROTECTED] http://www.PolandMET.com [EMAIL PROTECTED] http://www.Gao-Guenie.com GSM +48(607)535 195 [ Member of Polish Meteoritical Society ] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Spirit Mars Rover Turns Astronomer
http://space.com/missionlaunches/050907_spirit_update.html Night Moves: Spirit Mars Rover Turns Astronomer By Leonard David space.com 07 September 2005 From its top of the world vantage point, Spirit has snagged images of the two Mars moons - Phobos and Deimos. The robot is also assessing weather features in the dark of the night on Mars. Other nighttime duties are being discussed, such as charting meteor showers on the red planet. We're actually shunting some power during the daytime. So we'd much rather use that power to do some science instead of shunting it out as waste heat, said Jim Bell, an Associate Professor in the Cornell University Astronomy Department in Ithaca, New York. Bell is lead scientist for the Panoramic Camera color imaging system carried by the dual Mars robots: Spirit and Opportunity. Moons in view Having so much power has allowed group controllers to task Spirit to execute nighttime observing campaigns, Bell told SPACE.com. While each rover is equipped with a Panoramic Camera - or PanCam - the devices are not telescopes. Still, we can do some pretty good astronomy, Bell said. Spirit has been able to snap shots of both Phobos and Deimos together. We're killing two birds with one stone by selecting times when those two moons pass each other in the sky. That does frequently happen - every couple of nights, Bell said. Bell said that, by taking the nighttime photos, a better understanding of where those two moons are in their respective orbits becomes possible. We're getting some good orbital refinement on the positions of the satellites, Bell added. They haven't been monitored by astronomers since the late 1980s. In addition, by using color filters on Spirit, colors of the two martian moons can be ascertained, Bell noted. Weather service Spirit has also gazed longingly up into nighttime sky for meteorological purposes. We're looking for any evidence of clouds forming at night, or fog, or haze, Bell said. To do this job, nighttime shots are being taken using the backdrop of stars - as well as Phobos and Deimos - to help pin down atmospheric phenomena. As the two moons slip by overhead, Spirit is getting a spectacular view. Deimos looks pretty much like a star, far away. But Phobos is an eyeful, Bell observed. You can clearly see that Phobos is an oblong, potato-shaped object in the sky. It's not as big as the full moon, but it is still pretty decent in size, Bell said. A soon-to-be-released image will show features on the surface of Phobos, he said, and this is with not much better than human eye resolution! In fact, Phobos is so close and large enough, a person standing on Mars, within a few minutes, would notice the moon moving, Bell said. Shower times Thanks to the rover's power levels, Bell said that a proposal is being made to use Spirit to observe meteor showers this fall. Just like here on Earth, the red planet also sweeps through areas of space laden with comet debris. Scientists want to evaluate the flux of these small particles streaming into the martian atmosphere. There are models that predict certain rates of meteors, and like on Earth, there are shower times, Bell said. Spirit's nighttime powers should help record that shower activity, he said. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Water Detection at Gusev Crater Described
University Communications Washington University in St. Louis St. Louis, Missouri Media Assistance: Tony Fitzpatrick, Senior Science Editor (314) 935-5272 Subject Matter Experts: Raymond Arvidson, (314) 935-5609 Alian Wang, Senior research scientist, (314) 935-5671 Sept. 7, 2005 Water detection at Gusev crater described Chemical proof for two wet scenarios By Tony Fitzpatrick A large team of NASA scientists, led by earth and planetary scientists at Washington University in St. Louis details the first solid set of evidence for water having existed on Mars at the Gusev crater, exploration site of the rover Spirit. Using an array of sophisticated equipment on Spirit, Alian Wang, Ph.D., Washington University senior research scientist in earth and planetary sciences in Arts Sciences, and the late Larry A. Haskin, Ph.D., Ralph E. Morrow Distinguished University Professor of earth and planetary sciences, found that the volcanic rocks at Gusev crater near Spirit's landing site were much like the olivine-rich basaltic rocks on Earth, and some of them possessed a coating rich in sulfur, bromine, chlorine and hematite, or oxidized iron. The team examined three rocks and found their most compelling evidence in a rock named Mazatzal. The rock evidence indicates a scenario where water froze and melted at some point in Martian history, dissolving the sulfur, chlorine and bromine elements in the soil. The small amount of acidic fluids then react with the rocks buried in the soil and formed these highly oxidized coatings. Trench-digging rover During its traverse from landing site to Columbia Hills, the rover Spirit dug three trenches, allowing researchers to detect relatively high levels of magnesium sulfate comprising more than 20 percent of the regolith -- soil containing pieces of small rocks -- within one of the trenches, the Boroughs trench. The tight correlation between magnesium and sulfur indicates an open hydrologic system -- these ions had been carried by water to this site and deposited. Spirit's fellow rover Opportunity earlier had detected a history of water at another site on Mars, Meridiani planum. This study (by Haskin et al.) covered the investigation of Spirit rover sols (a sol is a Martian day) 1 through 156, with the major discoveries occurring after sol 80. After the findings were confirmed, Spirit traversed to the Columbian hills, where it found more evidence indicating water. The science team is currently planning for sol 551 operation of Spirit rover, which is only 55 meters away from the summit of Columbia Hills. Spirit was on sol 597 on Sept 6 and on the summit of Husband Hill. We will stay on the summit for a few weeks to finish our desired investigations, then go downhill to explore the south inner basin, especially the so-called 'home-plate,' which could be a feature of older rock or a filled-in crater, Wang said. We will name a major geo-feature in the basin after Larry. Wang, Haskin, their WUSTL colleague Raymond E. Arvidson, chair of earth and planetary sciences, and James S. McDonnell Distinguished University Professor, and Bradley Jolliff, Ph.D., research associate professor in earth and planetary sciences, and more than two dozen collaborators from numerous institutions, reported their findings in the July 7, 2005 issue of Nature magazine (Larry A. Haskin et al. Nature 436, 66-69 (7 July 2005) doi:10.1038/nature03640). The paper was the last one that lead author Haskin, a highly regarded NASA veteran and former chair of earth and planetary sciences at WUSTL, submitted before his death on March 24, 2005. Buried again and again We looked closely at the multiple layers on top of the rock Mazatzal because it had a very different geochemistry and mineralogy, said Wang. This told us that the rock had been buried in the soil and exposed and then buried again several times over the history. There are chemical changes during the burial times and those changes show that the soil had been involved with water. The telltale thing was a higher proportion of hematite in the coatings. We hadn't seen that in any previous Gusev rocks. Also, we saw very high chlorine in the coating and very high bromine levels inside the rock. The separation of the sulfur and chlorine tells us that the deposition of chlorine is affected by water. While the multilayer coatings on rock Mazatzal indicates a temporal occurrence of low quantity water associated with freezing and melting of water, the sulfate deposition at trench sites indicates the involvement of a large body of water. We examined the regolith at different depths within the Big Hole and the Boroughs trenches and saw an extremely tight correlation between magnesium and sulfur, which was not observed previously, Wang said. This tells us that magnesium sulfate formed in these trench regoliths. The increasing bromine concentration and the separation of chlorine from sulfur also suggests
Re: [meteorite-list] Ben Guerir TKW and TAW
I think you have it all backwards. institutions ALWAS have things that the colelcting public would give their eye teeth to get ahold of, making nearly anything in the hands of colelctors avalible to the researchers if they want to go out and get it one way or the other... now what lab wants to do a study on a nice big 100 lbs nwa 869 and has a 100g nakhla individual laying around that they dont need? :) Gee, I would define Total Available Weight as that material which is accessible and ready for use in scientific research. This would include the pieces in Morocco museums, but not pieces in the hands of collectors. Availability is a matter of perspective and access, which is different for different people. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Ben Guerir TKW and TAW
No, I don't think so. My point is that availability depends on who you are. A typical scientist has neither a large (or any) meteorite collection nor a budget for purchasing specimens. To him or her, privately owned meteorites are not directly available. It's different for a researcher at a large museum, who has significant trading power and/or an acquisition budget. In the same way a collector with a small collection has little trading power, so many museum specimens seem unavailable. However, big-time dealers have the wherewithal to negotiate trades with museums for some very special meteorites not normally considered available. For those collectors or scientists with the greatest resources, nearly everything is theoretically available except for objects of extraordinary significance. So it's not a useful quantity, this TAW. There's no way to define it unless you want to change the A to stand for Advertised. jeff At 08:56 PM 9/7/2005, stan . wrote: I think you have it all backwards. institutions ALWAS have things that the colelcting public would give their eye teeth to get ahold of, making nearly anything in the hands of colelctors avalible to the researchers if they want to go out and get it one way or the other... now what lab wants to do a study on a nice big 100 lbs nwa 869 and has a 100g nakhla individual laying around that they dont need? :) Gee, I would define Total Available Weight as that material which is accessible and ready for use in scientific research. This would include the pieces in Morocco museums, but not pieces in the hands of collectors. Availability is a matter of perspective and access, which is different for different people. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] From McCarthy Taylor: What is this rock?
McCarthy is having troubles posting to the List so he has asked me to forward this. He really would like some opinions on this rock Thanks. --- This post is not an offical Field Trip Report but a request to help identify a suspect rock found from my latest trip. The trip recovered 4 stones, 2 of which are meteorites, 1 which I thought was till I cut it open and its the topic of this posting, and a fourth that is probably a mesosider-wrong, but tested positive for nickel and will be sent to a lab soon. The stone in question is found in the Plainview strewnfield, attracts a magnet well, and has metal flakes. Hence, I acquired it from the finder. Once I cut it open I found no chrondrules and white matrix. Also, I found tiny bubbles here and there. Does anyone recognize it or seen anything like it? Any ideas what it is? Meteorwrong? _www.westernwelltool.com/Labor_day_trip_05/05-003.jpg_ (http://www.westernwelltool.com/Labor_day_trip_05/05-003.jpg) A good view of the metal pattern: _http://www.westernwelltool.com/Labor_day_trip_05/05-003-2.jpg_ (http://www.westernwelltool.com/Labor_day_trip_05/05-003-2.jpg) A veiw of matrix and the small bubbles: _http://www.westernwelltool.com/Labor_day_trip_05/05-003-3.jpg_ (http://www.westernwelltool.com/Labor_day_trip_05/05-003-3.jpg) The original main mass: _http://www.westernwelltool.com/Labor_day_trip_05/05-003-5.jpg_ (http://www.westernwelltool.com/Labor_day_trip_05/05-003-5.jpg) -- McCartneyTaylor, IMCA 2760 -- -- Anne M. Black www.IMPACTIKA.com [EMAIL PROTECTED] President, I.M.C.A. Inc. www.IMCA.cc __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ensisheim photos
There are some photos of Ensisheim show taken by Jean-Michel a french collectionneur http://jmdaillier.free.fr/ENSISHEIM%202005%20POUR%20LE%20NET/page_01.htm Vincent __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Tokyo TIMA show photos---can someone help host them?
Dear List, I have photos of the dealers at the Tokyo TIMA show that was held in June. If someone is willing to host them for the list to see I will provide them. Thank you. Dirk Ross...Tokyo __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Raffle Update, Wednesday
Dear Friends and Listees: I am delighted and slightly stunned to be able to report that, as of today, you have raised over $4,300 for our Katrina relief fund. Ticket sales notifications have been coming in here all day, and it's been very nice to hear from some old friends, via email. In addition to donations from all over the USA, we have received ticket purchases and donations from our friends in: Argentina Austria Canada Germany Mexico New Zealand Poland (sorry if I accidentally left out a whole country, I'm a little tired) I am confirming all ticket purchases, personally by email, but this taking quite a while, so please bear with me if you haven't heard from me regarding your purchases and/or general questions. I am a full day behind, even though I went through 100+ emails today. We have received some more great prizes, which I will try to add to the site tomorrow. I heard from Blaine Reed by phone today, and he is very generously donating a 5.8 gram fragment of the New Orleans meteorite. We also have items coming in from Geoff Cintron, Fred Hall, Martin Horejsi, Rob Matson, Rob Reisener, and others. Anne Black will be leaving a copy of Meteorites A to Z in Blaine's room during the Denver Show. All members of the meteorite community attending the show are being asked to sign that book, and it will also be one of the prizes. In related news: Tucson has received its first group of displaced persons from the Gulf states (89 survivors today), with more expected, so we are waiting to see what can be done in terms of volunteering to help these people in person. It's going to be one exciting night in Denver on September 17. I hope to see MANY of you at the La Loma party, hosted by the mighty Denver COMETS. Thanks for everything you've done to make this happen. Sincerely, Geoff Notkin 2005 Meteorite Community Charity Raffle http://www.aerolite.org/meteorite-raffle.htm __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
