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

[Paul H]

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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