[meteorite-list] Paleocene-Eocene (P-E) Boundary Impact Disputed

From: Paul H <bristolia_at_meteoritecentral.com>
Date: Thu Aug 19 13:12:47 2004
Message-ID: <20040819164831.12332.qmail_at_web50608.mail.yahoo.com>

A recent paper in Earth and Planetary Science Letters
disputes interpretations that argue that a major comet
impact caused global climatic changes, which coincides
with the Paleocene-Eocene (P-E) Boundary. Instead,
this
paper, Schmitz et al. (2004) concluded:

" The environmental perturbations at the Paleocene-
Eocene boundary appear to have been triggered by
basaltic volcanism, but any model for the detailed
causal relation remains speculative."

The paper is:

Schmitz, B., Peucker-Ehrenbrink, B., Heilmann-Clausen,

C., Aberg, G., Asaro, F., and Lee, C-T. A. 2004,
Basaltic explosive volcanism, but no comet impact,
at the Paleocene-Eocene boundary: high-resolution
chemical and isotopic records from Egypt, Spain and
Denmark. Earth and Planetary Science Letters.
vol. 225, no. 1-2, pp. 1-17 (30 August 2004)

Yours,

Paul
Baton Rouge, LA



                
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Received on Thu 19 Aug 2004 12:48:31 PM PDT