Mike/All, I'd be interested in learning more about this as well. It's too late tonight, but I think Svend has some understanding of this process. He commissioned the classification of Noktat Addagmar (http://www.fallingrocks.com/Collections/NoktatAddagmar.htm), which came back with a "terrestrial age" of 20.8 years, give or take. I really haven't a clue what was done to make this determination, though I'd planned to research this further if and when some free time avails itself. Anyway, Svend had sensed that this meteorite was from a very recent fall -- and, in the grand scheme of things it certainly was -- yet was very surprised to see it had been sitting in the desert for a couple of decades. Assuming that there is a reasonably tight degree of accuracy in making these analyses, it would be fascinating to revisit many locations already posted in the archives to learn more about their terrestrial life spans. This exercise would no doubt elevate our understanding of event frequencies, apparent terrestrial weathering in various climes and the like... All best, and see you soon, Dave www.fallingrocks.com
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Mike Bandli Sent: Saturday, January 17, 2009 5:50 PM To: [email protected] Subject: [meteorite-list] Question: Gamma-spectroscopy and Terrestrial Aging In light of recent topics including the 'new' Moroccan fall, I would like to request some information about determining the terrestrial age of 'fresh' meteorites. Specifically, the process involved using gamma-spectroscopy and the accuracy of results on meteorites. I'm sure others on the list would also be interested. Thanks, Mike Bandli ______________________________________________ http://www.meteoritecentral.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ http://www.meteoritecentral.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
