Re: K-T Extinction (from T. R. Lipka)

[N.MacLeod@xxxxxxxxx (N. MacLeod)]

From: Tompaleo@aol.com
Date: Thu, 13 Jul 1995 07:12:44 -0400
To: paleonet-owner@nhm.ac.uk
Subject: Re: K-T Extinction (from H. B...

>1) If there were global wildfires associated with a bolide impact, >should
>there not also be huge erosional deposits containing charcoal? >Denudation
>of land surface on a global scale should have generated enormous >piles of
>sediment along continental boundaries. Charcoal is often >incorporated
>into similar deposits associated with paleozoic drought induced >wildfires.

I'm sure there are other more recent papers out by now but see:

Melosh, H. J. et al, 1990. Ignition of global wildfires at the
Cretaceous/Tertiary boundary. Nature, v. 343, 18 Jan. 1990

And there are other papers that I can't recall right now that have found soot
in the boundary clay.

                                     Regards,
                                     Thomas R. Lipka
                                     Paleontological/Geological Studies


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