[meteorite-list] Dino Killer size
From: Darren Garrison <cynapse_at_meteoritecentral.com>
Date: Sun, 13 Apr 2008 12:51:07 -0400 Message-ID: <j3e4045ma59fflp84cpcq9otqvovhngig3_at_4ax.com> On Sun, 13 Apr 2008 09:32:33 -0700, you wrote: >According to Cr and Mn isotopic analyses of KTB samples, the impactor was a >carbonaceous chondrite - see report at: > >http://www.lpi.usra.edu/meetings/impact2000/pdf/3041.pdf > Yes, but it appears that comets are essentially carbonaceous chondrites that formed far enough from the sun to not lose their volitile mineral ddihydrogen monoxide. So saying that it is a carbonaceous chondrite doesn't conclude if it iwas a wet one (called a "comet") or a dry one (called an "asteroid"). Received on Sun 13 Apr 2008 12:51:07 PM PDT |
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