[meteorite-list] To Africa? what do you do?
List, Sorry if this is a bit off-topic, but I've had a bunch of (mostly) off-list questions about what I do that gets us transferred to places like Africa. I'm an exploration geologist, now working mainly with gold, employed by a big gold company. I've got 39+ years in the field and have worked every continent except Antarctica. On the side, I spent about 10 years teaching part-time at college level. A general lust for every facet of natural history magnified the whole thing, ultimately into the most exotic pursuit of all, METEORITES! and their problematic progeny TEKTITES! All of you reading this have the bug to some degree, and I hope you all comprehend that you're part of one of the most extreme focus groups in science: rocks that fall from the sky. Samples of asteroids. Samples from other planets. Samples of galactic star dust. Where do you go from this? My new assignment is based in Tanzania and involves creating the best team of explorers in Africa (and maybe the world!). You would be right to bet that nobody has escaped my training camp without knowing about meteorites, what to look for, and how where to look. I will keep our website going while we're gone, and will keep it updated with travel-log pics and narratives. I won't have access to our inventory for 2-3 years, so selling will be largely on hold. I'll still buy when opportunity presents, so do keep in touch. I'll remain on the list. This is not a good-bye (unless the crocs or tsetse flies or mosquitoes win--). Our address and phone and email will change, and will be posted to our website. But if you want to buy anything, ask soon--- Very soon. Cheers, Norm http://tektitesource.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] British Lower Eocene London Clay Tektites
Hi, Aubrey, List Here is a photo of Australasian micro- and mini- microtektites found in the Indian Ocean: http://www.nio.org/projects/shamprasad/figure2%20.htm Note the similaritity of shapes. These are slightly (but not too much) larger than the London Clay micros. Here is a small photo of Eocene micromicrotektites from the Chesapeake Bay Crater: http://meteor.pwnet.org/img/impact_13.jpg There is a clear resemblance to the London Clay micros. Note the high frequency of the amber-colored micros. Photo of Chicxulub microtektites: http://geophysics.ou.edu/impacts/chicxulubtektites.jpg Note the surface degradation. These are clean samples. Eventually, microtektites of this age are altered into clay nodules and escape notice. Paper (with photos) of possible (very) small Devonian microtektites: http://www.wanfangdata.com.cn/qikan/periodical.Articles/zgkx-ed/zgkx2000/0003/000309.htm (The ones that were 100 to 200 micrometers were sectioned and the surface SEM'ed; results are shown in a table below the photo; scroll down.) First, microtektites degrade much faster than larger tektites. By faster, however, I mean tens of millions of years, though. These objects are remarkably fresh looking. One asks why have they not degraded in 35 million years? Answering my own question, the high transparency suggests a very high silica content. This would account for their degree of preservation. The black appearance that most of us think of as typical of tektites is the result of high iron content. I gather that they have been securely tucked away in the London Clay for all that time and not exposed nor over-wetted. I'm tempted to say that the shapes alone are almost sufficient to identify them as tektites; it looks like an illustration of Baker's famous paper on tektites form. However, what's needed is a) a bulk composition by SEM, and b) a determination of water content by infrared spectroscopy (which is non-destructive and much more accurate than destructive extraction; polish off two surface windows and scope through the clean interior). Even after 35 million years, a tektite glass is going to be distinctly drier than ANY volcanic glass and most impact glasses. I was frankly amazed that the finder would dismiss these as volcanic in origin. They look nothing like volcanic microspherules. If someone is in a more expensive mood, another good test would be the flourine-boron ratios, which serves as a kind of thermometer for the temperature of formation. This would easily demonstrate that they were non-volcanic. (Personally, I find the volcanic suggestion outlandish.) If I had to vote without tests, I'd vote yes to their being a tektite glass, but just as with mysterious iron objects that come crashing through one's roof, a test is really required. Since there is an ongoing controversy about a proposed multi-ringed impact feature in the North Sea (or is it only a salt basin?), with paper in Nature, etc., http://bromans.blogspot.com/2007/03/great-north-sea-impact-crater-vs-salt.html maybe the pro-Impactisitas would pay for some testing? Nothing like a handful of tektites to bolster your impact! Sterling K. Webb --- - Original Message - From: Aubrey Whymark To: meteorite list ; [EMAIL PROTECTED] Sent: Wednesday, May 23, 2007 7:46 PM Subject: [meteorite-list] British Lower Eocene London Clay Tektites Hi I just wanted to draw attention to these possible microtektites from the Lower Eocene London Clay in England. The finder, Michael Daniels, has very kindly provided a number of images and some notes. http://www.tektites.co.uk/13.html What do people think of these possible microtektites? Are they comparable with other microtektites found? Interestingly some of the microtektites seem to have extra 'spikey' features (see photos) - is this normal? Thanks, Aubrey www.tektites.co.uk P.S. out of contact from 26th May for a bit. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] the biggest tektite ?
Hi Aubrey, Norm, List In Ensisheim (in 3 weeks from now), there will be again a substantial selection of tektites (mostly Rizalites, Cambodianites, some Vietnamites) for sale (on consignment, in the consignment room) at interesting prices. As in 2006, some Rizalite monsters (over 450 g) are anounced. My 2 specific questions are more general: - How heavy is the biggest tektite (Muong Nong not counted) known on earth ? - How heavy is the biggest Vietnamite known on earth ? - How heavy is the biggest Rizalite known on earth ? For Rizalite, my best reference is the 1069 g specimen as mentioned by H. O. Beyer (Philippine tektites). I could not find any spectacular data (i.e. over, say, 250-300 g) for vietnamites... Thanks and best wsihes, Zelimir P.S. Aubrey, very nice site! Congratulations! And these London microtektites are really intriguing ! A 01:46 24/05/2007 +0100, Aubrey Whymark a écrit : Hi I just wanted to draw attention to these possible microtektites from the Lower Eocene London Clay in England. The finder, Michael Daniels, has very kindly provided a number of images and some notes. http://www.tektites.co.uk/13.htmlhttp://www.tektites.co.uk/13.html What do people think of these possible microtektites? Are they comparable with other microtektites found? Interestingly some of the microtektites seem to have extra 'spikey' features (see photos) - is this normal? Thanks, Aubrey http://www.tektites.co.ukwww.tektites.co.uk P.S. out of contact from 26th May for a bit. Now you can http://us.rd.yahoo.com/mail/uk/taglines/default/nowyoucan/reading_pane/*http://us.rd.yahoo.com/evt=40565/*http://uk.docs.yahoo.com/nowyoucan.htmlscan emails quickly with a reading pane. Get the new http://us.rd.yahoo.com/mail/uk/taglines/default/nowyoucan/reading_pane/*http://us.rd.yahoo.com/evt=40565/*http://uk.docs.yahoo.com/nowyoucan.htmlYahoo! Mail. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Prof. Zelimir Gabelica Université de Haute Alsace ENSCMu, Lab. GSEC, 3, Rue A. Werner, F-68093 Mulhouse Cedex, France Tel: +33 (0)3 89 33 68 94 Fax: +33 (0)3 89 33 68 15 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] the biggest tektite ?
Hi Zelimir, - How heavy is the biggest Rizalite known on earth ? You may be right, that the 1069 g Rizalite specimen, mentioned by H.O. Beyer ist the heaviest Philippine Tektite. But there is one Rizalite in my collection, that is even larger: It is a 1009 gram splash form Tektite from Paracale with a large bubble inside. It's density is only 2.004 (common, compact tektites have densities around 2.43) and it has the size (volume) of a Rizalite, weighing around 1223 grams. See you in Ensisheim Dieter - Original Message - From: Zelimir Gabelica [EMAIL PROTECTED] To: Aubrey Whymark [EMAIL PROTECTED]; meteorite list meteorite-list@meteoritecentral.com; norm [EMAIL PROTECTED] Sent: Thursday, May 24, 2007 8:49 AM Subject: [meteorite-list] the biggest tektite ? Hi Aubrey, Norm, List In Ensisheim (in 3 weeks from now), there will be again a substantial selection of tektites (mostly Rizalites, Cambodianites, some Vietnamites) for sale (on consignment, in the consignment room) at interesting prices. As in 2006, some Rizalite monsters (over 450 g) are anounced. My 2 specific questions are more general: - How heavy is the biggest tektite (Muong Nong not counted) known on earth ? - How heavy is the biggest Vietnamite known on earth ? - How heavy is the biggest Rizalite known on earth ? For Rizalite, my best reference is the 1069 g specimen as mentioned by H. O. Beyer (Philippine tektites). I could not find any spectacular data (i.e. over, say, 250-300 g) for vietnamites... Thanks and best wsihes, Zelimir P.S. Aubrey, very nice site! Congratulations! And these London microtektites are really intriguing ! __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] the biggest tektite ?
Hi Dieter, That's the reason why I asked the weight (mass), not the volume, nor the fictitious weight. I well know the hollow tektites from Norm's site. They can have densities even lower than 2. I conclude that, so far, after the Beyer's N° 1, you have the number 2 (1009 g). Congratulations! I for one could well have the Rizalite N° 4 (967 g) because the large sphere (986 g), presumably the number 3, will still be available for sale in Ensisheim (the consigner had an offer in 2006, then he put it on hold but the potential buyer never came back as promised...). Anxious to know more on Vietnamites... Zelimir A 10:19 24/05/2007 +0200, Dieter Heinlein a écrit : Hi Zelimir, - How heavy is the biggest Rizalite known on earth ? You may be right, that the 1069 g Rizalite specimen, mentioned by H.O. Beyer ist the heaviest Philippine Tektite. But there is one Rizalite in my collection, that is even larger: It is a 1009 gram splash form Tektite from Paracale with a large bubble inside. It's density is only 2.004 (common, compact tektites have densities around 2.43) and it has the size (volume) of a Rizalite, weighing around 1223 grams. See you in Ensisheim Dieter - Original Message - From: Zelimir Gabelica [EMAIL PROTECTED] To: Aubrey Whymark [EMAIL PROTECTED]; meteorite list meteorite-list@meteoritecentral.com; norm [EMAIL PROTECTED] Sent: Thursday, May 24, 2007 8:49 AM Subject: [meteorite-list] the biggest tektite ? Hi Aubrey, Norm, List In Ensisheim (in 3 weeks from now), there will be again a substantial selection of tektites (mostly Rizalites, Cambodianites, some Vietnamites) for sale (on consignment, in the consignment room) at interesting prices. As in 2006, some Rizalite monsters (over 450 g) are anounced. My 2 specific questions are more general: - How heavy is the biggest tektite (Muong Nong not counted) known on earth ? - How heavy is the biggest Vietnamite known on earth ? - How heavy is the biggest Rizalite known on earth ? For Rizalite, my best reference is the 1069 g specimen as mentioned by H. O. Beyer (Philippine tektites). I could not find any spectacular data (i.e. over, say, 250-300 g) for vietnamites... Thanks and best wsihes, Zelimir P.S. Aubrey, very nice site! Congratulations! And these London microtektites are really intriguing ! __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Prof. Zelimir Gabelica Université de Haute Alsace ENSCMu, Lab. GSEC, 3, Rue A. Werner, F-68093 Mulhouse Cedex, France Tel: +33 (0)3 89 33 68 94 Fax: +33 (0)3 89 33 68 15 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD - Ebay Auctions ending - 8 Different Planetaries
Good Morning Meteorite Lovers I have auctions ending tonight catchafallingstar.com. All started at 99 just Cents!!!: http://members.ebay.com/ws/eBayISAPI.dll?ViewUserPageuserid=catchafallingstar.com Full recap with photos on Paul and Jim's website: http://www.meteorite.com/meteorites/ebay/catch_a_falling_star_meteorites.htm Thanks for looking Jim Strope 421 Fourth Street Glen Dale, WV 26038 http://www.catchafallingstar.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] mini gao sale/update (AD)
I seemed to have not put ad in my last gao post.I am sorry for that.I also should have made a little better use of my email about the sale.I have 2 pics on my homepage of my website with the sizes that are up forsale.The sizes are as follows: 48.4,35.9,22,21.4,19.3,18.3,18.2,16.8,16.5,16.1,15.8,and finally 3.2 grams.If more pics are wanted just let me know.I again am sorry for this 2nd post,this should have been on my first and only post of this matter. Steve R.Arnold,chicago,Ill,Usa!! Collecting Meteorites since 06/19/1999!! chicagometeorites.net.Specializing in Gao Meteorites! Ebay I.D. Illinoismeteorites Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 __ 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 - May 24, 2007
http://www.spacerocksinc.com/May_24_2007.html ** See what's free at http://www.aol.com. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] New website
Hello, I'm happy to announce you that I completely redesigned my website www.meteor-center.com Let's get a look at my collection and sales. You should find very interesting items. And meet you in Ensisheim ! Best regards, Pierre-Marie PELE IMCA #3360 ___ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] New website
WOW Beautiful web site. You have some very nice Gao specimens for sale. I'm sure some enterprising Gao collector will want to have a look. Dave - Original Message - From: Pelé Pierre-Marie [EMAIL PROTECTED] To: MeteoriteList meteorite-list@meteoritecentral.com Sent: Thursday, May 24, 2007 3:53 PM Subject: [meteorite-list] New website Hello, I'm happy to announce you that I completely redesigned my website www.meteor-center.com Let's get a look at my collection and sales. You should find very interesting items. And meet you in Ensisheim ! Best regards, Pierre-Marie PELE IMCA #3360 ___ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com __ 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] Gold Basin and Franconia hunting trip
Listees: I will be in the Gold Basin Strewnfield on Wednesday, June 6 and at the Franconia strewnfield on Thursday, June 7, if anyone would like to join me. I plan to stay in Kingman overnight on the 6th and 7th. My cell phone number is: 412.304.2119. I will share my experience and pics of any finds when I return. Dave TV dinner still cooling? Check out Tonight's Picks on Yahoo! TV. http://tv.yahoo.com/ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Gold Basin and Franconia hunting trip
Don't forget sunblock and rattlesnake repellant. Mike Farmer --- David Pensenstadler [EMAIL PROTECTED] wrote: Listees: I will be in the Gold Basin Strewnfield on Wednesday, June 6 and at the Franconia strewnfield on Thursday, June 7, if anyone would like to join me. I plan to stay in Kingman overnight on the 6th and 7th. My cell phone number is: 412.304.2119. I will share my experience and pics of any finds when I return. Dave TV dinner still cooling? Check out Tonight's Picks on Yahoo! TV. http://tv.yahoo.com/ __ 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] Meteorite List Resource Map indicating worlwide users of our list
Dear List, I don`t know how many of you are aware of the feature showing worldwide usage of Meteorite Central and the Met Mailing List. Here is a link: http://clustrmaps.com/counter/maps.php?url=http://www.meteoritecentral.com Best, Dirk Ross...Tokyo __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Announcing a Major New Meteorite Website at UNM
Hello Geoff; The new unm site is awesome.Great job,as always.I like the photo section.Especially the Irons. Best Regards;Herman Archer. ** See what's free at http://www.aol.com. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] To Africa? what do you do?
Hello Norm; Your advertures sound very exciting and informational for people you come into contact with in your profession.What a good life it must be to get to work and be compensated for something you are so passionate about.Your posts are always educational and appreciated by myself and probably many more listee's.I wish you a good stay in africa and maybe a good find or two.Meteorites ,i mean. Best Regards;Herman Archer IMCA # 2770. ** See what's free at http://www.aol.com. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] the biggest tektite ?
Hi, Zelmir, List Just from searching the internet, I compiled this list of the Biggest Tektite (excluding layered tektites) from: Australia.437 g. Czechoslovakia..258.5 g. Ivory Coast 79 g. Malaysia.464 g. Philippines1069 g. I couldn't find any mention of the largest Vietnamite, but here's a site with a study of 203 Vietnamese tektites: http://www.edamgaard.dk/Copy%20of%20VietnamTektites%20edj.htm Sterling K. Webb --- - Original Message - From: Zelimir Gabelica [EMAIL PROTECTED] To: Aubrey Whymark [EMAIL PROTECTED]; meteorite list meteorite-list@meteoritecentral.com; norm [EMAIL PROTECTED] Sent: Thursday, May 24, 2007 1:49 AM Subject: [meteorite-list] the biggest tektite ? Hi Aubrey, Norm, List In Ensisheim (in 3 weeks from now), there will be again a substantial selection of tektites (mostly Rizalites, Cambodianites, some Vietnamites) for sale (on consignment, in the consignment room) at interesting prices. As in 2006, some Rizalite monsters (over 450 g) are anounced. My 2 specific questions are more general: - How heavy is the biggest tektite (Muong Nong not counted) known on earth ? - How heavy is the biggest Vietnamite known on earth ? - How heavy is the biggest Rizalite known on earth ? For Rizalite, my best reference is the 1069 g specimen as mentioned by H. O. Beyer (Philippine tektites). I could not find any spectacular data (i.e. over, say, 250-300 g) for vietnamites... Thanks and best wsihes, Zelimir P.S. Aubrey, very nice site! Congratulations! And these London microtektites are really intriguing ! A 01:46 24/05/2007 +0100, Aubrey Whymark a écrit : Hi I just wanted to draw attention to these possible microtektites from the Lower Eocene London Clay in England. The finder, Michael Daniels, has very kindly provided a number of images and some notes. http://www.tektites.co.uk/13.htmlhttp://www.tektites.co.uk/13.html What do people think of these possible microtektites? Are they comparable with other microtektites found? Interestingly some of the microtektites seem to have extra 'spikey' features (see photos) - is this normal? Thanks, Aubrey http://www.tektites.co.ukwww.tektites.co.uk P.S. out of contact from 26th May for a bit. Now you can http://us.rd.yahoo.com/mail/uk/taglines/default/nowyoucan/reading_pane/*http://us.rd.yahoo.com/evt=40565/*http://uk.docs.yahoo.com/nowyoucan.htmlscan emails quickly with a reading pane. Get the new http://us.rd.yahoo.com/mail/uk/taglines/default/nowyoucan/reading_pane/*http://us.rd.yahoo.com/evt=40565/*http://uk.docs.yahoo.com/nowyoucan.htmlYahoo! Mail. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Prof. Zelimir Gabelica Université de Haute Alsace ENSCMu, Lab. GSEC, 3, Rue A. Werner, F-68093 Mulhouse Cedex, France Tel: +33 (0)3 89 33 68 94 Fax: +33 (0)3 89 33 68 15 __ 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] Isotopes in Meteorites Suggest Solar System Formed in a Rough Neighborhood
http://www.sciencemag.org/cgi/content/full/316/5828/a Science 25 May 2007: Vol. 316. no. 5828, p. DOI: 10.1126/science.316.5828.a News of the Week GEOCHEMISTRY: Isotopes Suggest Solar System Formed in a Rough Neighborhood Richard A. Kerr Astrophysicists have long assumed that a supernova played midwife to the solar system. An exploding star could have collapsed wispy interstellar gas and dust into a dense swirling disk to get things started and loaded it with the intensely radioactive aluminum that cooked up chunks of the nascent solar system. But on page 1178 http://www.sciencemag.org/cgi/content/full/316/5828/1178, a group of cosmo-chemists presents evidence that the sun was born into an even more brutal environment. What's rougher than a supernova next door? A supernova that, before detonating, blasts its neighborhood with eons' worth of energy in an astrophysical instant. Astrophysicists think such behavior is typical of stars dozens of times as massive as the sun. And if one of those massive stars was so close, our home system must have formed in a dense, swirling cluster of stars. The newborn solar system's neighborhood would have been a much more violent and turbulent place than had been assumed, says theoretical astrophysicist Alan Boss of the Carnegie Institution of Washington's Department of Terrestrial Magnetism. The evidence for our violent beginnings comes from some of the most precise isotopic measurements yet of nickel in samples of Earth, Mars, and meteorites. Martin Bizzarro of the University of Copenhagen in Denmark and colleagues had gone looking for signs of radioactive iron-60 in the oldest meteorite from an asteroid that had melted in the earliest solar system. The iron-60 itself wouldn't be there. It was forged in the heart of a star and spewed into the material that would become the solar system after the star went supernova. Then the iron-60 promptly decayed away into nickel-60. So the researchers looked for the nickel ash using a type of mass spectrometer that can ionize all the nickel in a sample. That allows sensitive detection of the isotopes following magnetic separation. They also analyzed each sample many times to drive down the analytical error. To their surprise, Bizzarro and colleagues did not find the expected extra dose of the iron-60 marker. Instead, the samples contained less nickel-60 than found in younger meteorites. Apparently, the solar system's shot of iron-60 had not arrived when this old meteorite solidified about a million years after the solar system's start. Yet radioactive aluminum-26--also made in stars--had been there all along. Iron-60 and aluminum-26 don't seem to be coming into the solar system at the same time, says Bizzarro. There's only one stellar environment that can do that: very, very massive stars. The bigger the star, the faster it burns its hydrogen fuel. If it has more than 30 times the mass of the sun, a star will blow away much of its outer layers--including its aluminum-26--in the last million years of its brief life of 4 million years or so. That stellar wind could have driven the collapse of interstellar gas and dust to form our sun and the protoplanetary disk that once surrounded it. Later, the massive star exploded, spewing iron-60 from its deep interior. The Bizzarro paper has a great story to tell - based on some truly spectacular nickel-isotope data, says cosmochemist Meenakshi Wadhwa of Arizona State University in Tempe. There is a caveat, however. Three other labs, including her own, have analyzed similar samples with similar levels of precision--albeit using a different data-analysis approach--without finding a deficit of nickel-60 in the oldest samples. Wadhwa still believes the authors make a pretty good case for the accuracy and precision of their data. But you can bet that pretty good won't stop competing labs from gearing up for more analytical runs. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Gold Basin and Franconia hunting trip
By the first week of June, it could be aproaching 115 or more out there! Take plenty of water. Mike Farmer --- Pasadena Eclipse [EMAIL PROTECTED] wrote: Be prepared for the heat because it's been pretty hot out at Franconia lately. I was out there this weekend and the temperature ranged from 100 to 110 degrees during the day. Good luck -Del --- David Pensenstadler [EMAIL PROTECTED] wrote: Listees: I will be in the Gold Basin Strewnfield on Wednesday, June 6 and at the Franconia strewnfield on Thursday, June 7, if anyone would like to join me. I plan to stay in Kingman overnight on the 6th and 7th. My cell phone number is: 412.304.2119. I will share my experience and pics of any finds when I return. Dave TV dinner still cooling? Check out Tonight's Picks on Yahoo! TV. http://tv.yahoo.com/ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 __ 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] Gold Basin and Franconia hunting trip
Be prepared for the heat because it's been pretty hot out at Franconia lately. I was out there this weekend and the temperature ranged from 100 to 110 degrees during the day. Good luck -Del --- David Pensenstadler [EMAIL PROTECTED] wrote: Listees: I will be in the Gold Basin Strewnfield on Wednesday, June 6 and at the Franconia strewnfield on Thursday, June 7, if anyone would like to join me. I plan to stay in Kingman overnight on the 6th and 7th. My cell phone number is: 412.304.2119. I will share my experience and pics of any finds when I return. Dave TV dinner still cooling? Check out Tonight's Picks on Yahoo! TV. http://tv.yahoo.com/ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] the biggest tektite ?
In a message dated 5/24/2007 3:40:24 P.M. Mountain Standard Time, [EMAIL PROTECTED] writes: Hi, Zelimir, List Just from searching the internet, I compiled this list of the Biggest Tektite (excluding layered tektites) from: Australia.437 g. Czechoslovakia..258.5 g. Ivory Coast 79 g. Malaysia.464 g. Philippines1069 g. I couldn't find any mention of the largest Vietnamite, but here's a site with a study of 203 Vietnamese tektites: _http://www.edamgaard.dk/Copy%20of%20VietnamTektites%20edj.htm_ (http://www.edamgaard.dk/Copy%20of%20VietnamTektites%20edj.htm) Sterling K. Webb --- Very interesting, Sterling. And what is the largest Moldavite known? I just acquired a big one, a nice tear-drop shape, 6.5 cm long, 39 grams exactly. Am I in the running? Anne M. Black www.IMPACTIKA.com [EMAIL PROTECTED] President, I.M.C.A. Inc. www.IMCA.cc ** See what's free at http://www.aol.com. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] the biggest tektite ?
Anne, Sterling, Zelimir all, Hal Povenmire has a nice tabulation in his book Tektites: a Cosmic Enigma (2003). Here are a few additions from that list: Bohemian moldavites: 500 gms (Sorry Anne; not a contender) Moravian moldavites: 265.5 gms Java: 750 gms Georgia: 70.5 gms Bediasites: 200.8 gms Thailand: 456 gms in all cases not including Muong Nong types. The biggest remaining Rizalite in Futrell's collection 991.7 gms. I have a bunch of Povenmire's 2003 revision at $20 each if anyone is interested in acquiring one. Cheers, Norm http://Tektitesource.com --- [EMAIL PROTECTED] wrote: In a message dated 5/24/2007 3:40:24 P.M. Mountain Standard Time, [EMAIL PROTECTED] writes: Hi, Zelimir, List Just from searching the internet, I compiled this list of the Biggest Tektite (excluding layered tektites) from: Australia.437 g. Czechoslovakia..258.5 g. Ivory Coast 79 g. Malaysia.464 g. Philippines1069 g. I couldn't find any mention of the largest Vietnamite, but here's a site with a study of 203 Vietnamese tektites: _http://www.edamgaard.dk/Copy%20of%20VietnamTektites%20edj.htm_ (http://www.edamgaard.dk/Copy%20of%20VietnamTektites%20edj.htm) Sterling K. Webb --- Very interesting, Sterling. And what is the largest Moldavite known? I just acquired a big one, a nice tear-drop shape, 6.5 cm long, 39 grams exactly. Am I in the running? Anne M. Black www.IMPACTIKA.com [EMAIL PROTECTED] President, I.M.C.A. Inc. www.IMCA.cc ** See what's free at http://www.aol.com. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] And the Science abstract on the Bizzarro study
No mention of square planetesimals... http://www.sciencemag.org/cgi/content/abstract/316/5828/1178 Evidence for a Late Supernova Injection of 60Fe into the Protoplanetary Disk Martin Bizzarro,1,2* David Ulfbeck,1 Anne Trinquier,1 Kristine Thrane,1 James N. Connelly,1,3 Bradley S. Meyer4 High-precision 60Fe-60Ni isotope data show that most meteorites originating from differentiated planetesimals that accreted within 1 million years of the solar system's formation have 60Ni/58Ni ratios that are 25 parts per million lower than samples from Earth, Mars, and chondrite parent bodies. This difference indicates that the oldest solar system planetesimals formed in the absence of 60Fe. Evidence for live 60Fe in younger objects suggests that 60Fe was injected into the protoplanetary disk 1 million years after solar system formation, when 26Al was already homogeneously distributed. Decoupling the first appearance of 26Al and 60Fe constrains the environment where the Sun's formation could have taken place, indicating that it occurred in a dense stellar cluster in association with numerous massive stars. 1 Geological Institute, University of Copenhagen, Øster Voldgade 10, DK-1350, Denmark. 2 Geological Museum, University of Copenhagen, Øster Voldgade 5-7, DK-1350, Denmark. 3 Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, USA. 4 Department of Physics and Astronomy, Clemson University, Clemson, SC 296340978, USA. * To whom correspondence should be addressed. E-mail: [EMAIL PROTECTED] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] The jury's still out on the wink
http://space.newscientist.com/article/dn11928-our-solar-system-started-with-a-nudge-not-a-bang.html Our solar system started with a nudge, not a bang 19:00 24 May 2007 NewScientist.com news service Zeeya Merali Our solar system came into existence with a nudge, rather than a bang, according to a meteorite analysis that rules out a popular theory for the formation of our planetary system. Most astrophysicists believe that the solar system formed from a cloud of gas and dust when a nearby supernova exploded, compressing the dust and triggering the birth of the Sun and planets, says Martin Bizzarro of the University of Copenhagen in Denmark. To investigate, Bizzarro and his colleagues looked for iron-60, an isotope produced by supernovae, in meteorites that formed during the first million years in the solar system's history. To our great surprise, there was no iron-60, ruling out the supernova trigger mechanism, says Bizzarro. The team found another isotope, aluminium-26, suggesting an alternative trigger. Aluminium-26 only forms in extremely massive stars, around 30 times the mass of the Sun, and such stars release a great amount of energy in winds loaded with aluminium-26, says Bizzarro. These winds could have buffeted the gas cloud, causing the solar system to form, he says. There was also evidence of iron-60 in meteorites dating from a few million years later, suggesting that this massive star exploded at a later date, injecting iron-60 into the youthful solar system. The team are now looking for evidence of other supernovae in our solar system's vicinity. This could have been a very crowded and dynamic neighbourhood, says Bizzarro. Journal reference: Science (vol 316, p 1178) __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Believe it or Rust
http://sev.prnewswire.com/entertainment/20070524/NYTH10524052007-1.html Ripley's Triumphant Return to New York! Ripley's Believe It or Not!(R) Odditorium to Open in Times Square NEW YORK, May 24 /PRNewswire/ -- New York City will welcome back the spirit of Robert Ripley next month with the opening of Ripley's Believe It or Not!(R) Times Square Odditorium. The opening marks the return of Ripley to New York, his home for more than 30 years, and to the city that proved that truth can be stranger than fiction. Ripley's Times Square will house the ultimate in the odd and bizarre, as well as items that are truly New York ranging from 24 shrunken heads to a section of the Berlin Wall, a 3,197 lb. meteorite and Babe Ruth's Believe It or Not's New York team baseball uniform. The Odditorium officially opens on June 21. New York City is one of the most amazing cities in the world and it's easy to see why Robert Ripley made the Big Apple his home, said Bob Masterson, President, Ripley Entertainment Inc. We are thrilled to bring Believe It or Not! back to the city where, in 1918, Ripley coined that now famous phrase. Ripley's Times Square Odditorium will house the greatest collection of unbelievable odd and unusual items ever assembled under one roof, from this world and beyond! This fantastic collection captures the essence of Mr. Ripley, the eccentric collector who proved to the world that truth could indeed be stranger than fiction. Robert Ripley's New York Robert Leroy Ripley, an icon in the world of cartoon art, the first person to be elected to the Trivia Hall of Fame, and the founder of an entertainment empire based on the premise that truth can be stranger than fiction, first came to New York from San Francisco in 1913 at the age of 23. Working as an illustrator in San Francisco, Ripley was encouraged by his friend Jack London to go to New York and pursue his baseball dream or at least make more money from his drawings. He landed a job as an illustrator with the New York Globe and in 1914 he tried out for the New York Giants - and made the team! Unfortunately, in his very first game with the Giants, he broke his pitching arm. With his baseball career over, Ripley returned to his job at the Globe and to living a full and rich New York City life including marrying a Ziegfeld Follies showgirl, living in a 28-room stone mansion on a private island off Mamaroneck and hosting grand parties during prohibition that would dazzle even the most jaded New Yorker. The Ripley's Times Square Highlights Like the Ripley's Believe It or Not! Attractions around the globe, each item inside Ripley's Times Square will appeal to man's basic curiosity and desire to know more about this world ... and New York City. Guests will find only authentic, original and unbelievable exhibits in the Times Square odditorium, including locks of hair that belonged to Elvis Presley, John Fitzgerald Kennedy and George Washington, Ripley's collection of Olympic torches, and animal oddities including a two-headed calf, a six-legged cow and an albino giraffe! Some other key exhibits will include: Shrunken Heads The Museum will feature Ripley's collection of 24 shrunken heads that were the spoils of war for the Jivaro Indians of Ecuador. Believe it or not, Ripley's Times Square will boast more shrunken heads on display than the American Museum of Natural History. The Believe It or Not's Baseball Uniforms On May 5, 1939 in Madison Square Garden, Robert Ripley led a band of celebrities called the Believe It or Not's to the plate against an equally elite team called the Nine Old Men, led by radio and newspaper journalist Lowell Thomas, to benefit the Boys Club of New York. In total, more than 60 celebrities played for the two teams, including two of the greatest baseball players of all time, pitcher Walter Johnson, and heavy hitter Babe Ruth. Also playing for Ripley's team were boxing champion Jack Dempsey, comedians Jimmy Durante, Bugs Baer and W. C. Fields, actors George Raft and Al Jolson, World War I Hero and founder of Eastern Airlines, Eddie Rickenbacker, and billionaire William Randolph Hearst, Jr. 3,197-lb. Meteorite Found in Guangxi, Nantan County, China in 1958, Ripley's Times Square Odditorium will house a giant 3,197-lb. meteorite that fell to earth during the Ming Dynasty on June 11, 1529. Composed of 92% iron, the meteorite will be the third largest Nantan meteorite on display anywhere in the world. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
