[meteorite-list] Even More Younger Dryas Impact Hypothesis Papers

[Paul H.]

While using Google Scholar, I found even more recent papers 
about the Younger Dryas and related impacts.

They are:

Haynes, C. V., Jr., J. Boerner, K. Domanik, D. Lauretta, J. 
Ballenger, and J. Goreva, 2010, The Murray Springs 
Clovis site, Pleistocene extinction, and the question 
of extraterrestrial impact. Proceedings of National
Academy of Sciences. 

http://www.pnas.org/content/early/2010/02/09/0908191107.abstract

The abstract to this paper states:

“Magnetic microspherules have terrestrial origins but 
also occur as cosmic dust particles. We failed to find 
iridium or radiation anomalies. The evidence for 
massive biomass burning at Murray Springs is addressed 
and found to be lacking. We could not substantiate some 
of the claims by Firestone and others, but our findings 
do not preclude a terminal Pleistocene cosmic event.”

Also, a paper by the proponents of the Younger Dryas Impact 
Hypothesis appeared in a very obscure Russian journal. It is:

Firestone, R. B., A. West, Z. Revay, J. T. Hagstrum, T. Belgya, 
A. R. Smith, and S. S. Que Hee, 2010, Analysis of the Younger 
Dryas Impact Layer. Journal of Siberian Federal University. 
Engineering & Technologies, vol. 3, no. 1, pp. 30-62.

Link at:
http://journal.sfu-kras.ru/en/series/technologies/2010/1

PDF file at:
http://elib.sfu-kras.ru/bitstream/2311/1634/1/02_.pdf

A related paper is:

Hagstrum, J. T., R. B. Firestone, A. West, Z. Stefanka, and 
Z. Revay, 2010, Micrometeorite Impacts in Beringian 
Mammoth Tusks and a Bison Skull. Journal of Siberian
Federal University. Engineering & Technologies, vol. 3, 
no. 1, pp. 123-132.
Link at:
http://journal.sfu-kras.ru/en/series/technologies/2010/1

PDF file at:
http://elib.sfu-kras.ru/bitstream/2311/1635/1/06_.pdf

This issue also contains a paper about an alleged impact 
crater strewn field in Germany. The paper is:

Ernstson, K., W. Mayer, A. Neumair, B. Rappenglück, M. A. 
Rappenglück, D. Rudhaus, and K. W. Zeller, 2010, The 
Chiemgau Crater Strewn Field: Evidence of a Holocene 
Large Impact Event in Southeast Bavaria, Germany.
Journal of Siberian Federal University. Engineering & 
Technologies, vol. 3, no. 1, pp. 72-103.

Link at:
http://journal.sfu-kras.ru/en/series/technologies/2010/1

PDF file at:
 http://elib.sfu-kras.ru/bitstream/2311/1631/1/04_.pdf

I have not had the time to read through any of these papers.
Therefore, I cannot comment in any detail the validity of their 
arguments. Therefore, if a person has any disagreements 
with what they argue, contact the authors, not me. 

Yours,

Paul H.