[meteorite-list] Dino Killer size

[Ted Bunch]

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

Ted Bunch



On 4/13/08 7:48 AM, "E.P. Grondine" <epgrondine at yahoo.com> wrote:

> Hi Sterling, all -
> 
>> From the article:
> 
> "Another possibility is that the impacting objects
> were comets rather than asteroids, and contained much
> less osmium to begin with. But chemical traces of
> the impactors left behind in rocks and reported in
> previous studies suggest otherwise."
> 
> The last I heard, the impactor was "carbonaceous
> chondrite", i.l. "comet", and K-T fossil meteorite
> showed that. Has this changed?
> 
> E.P. Grondine
> Man and Impact in the Americas
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> ______________________________________________
> http://www.meteoritecentral.com
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
> http://six.pairlist.net/mailman/listinfo/meteorite-list