Tom: Very interesting point. As you may know, many of the meteorites found on Dry Lakes are different, ranging from H3 - H6, L3 - L6 and even some LL's. I'm not a specialist but I've thought the same. If a large asteroid (or meteor) exploded above the area, of what is now a dry lake, perhaps 100's or even 1000's of pieces, different types could be spread over many square miles. However, they also could be meteorites from multiple falls ocurring over last 20,000 years. BTW - the show "NAked Science"about TC3 was very interesting and I enjoyed it very much. Thanks to everyone involved with it.
Greg S. ---------------------------------------- > From: [email protected] > Date: Fri, 4 Dec 2009 15:05:22 -0500 > To: [email protected] > Subject: [meteorite-list] TC3 show and an observation > > Hi List, I watched the National Geographic's "Naked Science: Countdown to > Impact" which is the story of asteroid/meteorite TC3. > > What caught my attention was the diversity of material within the samples > collected. After a few years of weathering, would all those stones even > be thought to of come from the same fall? It got me wondering about the > diversity in other meteorite material. > > Have others working with meteorites noticed large diversity in material > type within a group of named samples. I'm not talking about a single stone > (perhaps even brecciated) but rather a fall with a large number of recovered > individuals. > > I am not an expert but I have cut, polished and examined mare than an > average amount of meteorites and in those named materials where I have cut > into > more than 50 stones, most have such a large diversity I could send in a > type sample that would support any thing from a type 3 to a 6. > > Some primary examples are SaU 001, JaH 055, JaH 073 and the provisional > NWA 5142. > > These examples are only those where I have cut a large amount. There must > be other more dramatic examples others have noticed. > > Aside from that question I had, it was a great informative and > entertaining show. Well done! > > for info on the show see: > http://channel.nationalgeographic.com/series/naked-science/4652/Overview > > Tom Phillips > > ______________________________________________ > http://www.meteoritecentral.com > Meteorite-list mailing list > [email protected] > http://six.pairlist.net/mailman/listinfo/meteorite-list _________________________________________________________________ Get gifts for them and cashback for you. Try Bing now. http://www.bing.com/shopping/search?q=xbox+games&scope=cashback&form=MSHYCB&publ=WLHMTAG&crea=TEXT_MSHYCB_Shopping_Giftsforthem_cashback_1x1 ______________________________________________ http://www.meteoritecentral.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
