[meteorite-list] Dino Killer size

[Darren Garrison]

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").