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Re: K-Pg extinction global firestorms

To: dinosaur@usc.edu
Subject: Re: K-Pg extinction global firestorms
From: "Richard W. Travsky" <rtravsky@uwyo.edu>
Date: Fri, 29 Mar 2013 08:56:02 -0600 (Mountain Daylight Time)
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On Wed, 27 Mar 2013, Ben Creisler wrote:


A new paper of interest:

Douglas S. Robertson, William M. Lewis, Peter M. Sheehan & Owen B. Toon (2013)
K-Pg extinction: Reevaluation of the heat-fire hypothesis.
Journal of Geophysical Research: Biogeosciences (advance online publication)
DOI: 10.1002/jgrg.20018
http://onlinelibrary.wiley.com/doi/10.1002/jgrg.20018/abstract

So, what about the other recent news that it could have been a comet? Thathas a different composition from, say, an asteroid. It would seem to ruleout a comet.

Follow-Ups:
- Re: K-Pg extinction global firestorms
  - From: Jason Brougham <jaseb@amnh.org>
- RE: K-Pg extinction global firestorms
  - From: "Thomas R. Holtz, Jr." <tholtz@umd.edu>

References:
- K-Pg extinction global firestorms
  - From: Ben Creisler <bcreisler@gmail.com>

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