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Younger Dryas Impact Controversy Continues



The controversy over the Younger Dryas Impact 
Hypothesis continues.

Mysterious Black Mats on Earth Not From Outer 
Space by Charles Choi, LiveScience, April 23, 2012
http://www.livescience.com/19844-cosmic-collision-black-mats-earth.html

Perkins, S., 2012, No Love for Comet Wipeout.
ScienceNow, April 23, 2012
http://news.sciencemag.org/sciencenow/2012/04/no-love-for-comet-wipeout.html

University of Miami press release at:

Anonymous, 2012, Miami geologist, colleagues: 
New evidence argues against prehistoric 
extraterrestrial impact. University of Miami  
http://www.miami.muohio.edu/news/article/view/16981.html

The paper is:

Pigati, J. S., C. Latorre, J. A. Rech, J. L. 
Betancourte, K. E. Martínezb, and J. R. Budahn, 2012, 
Accumulation of impact markers in desert wetlands
and implications for the Younger Dryas impact 
hypothesis. Proceeedings of the National Academy 
of Science. Published online before print April 23, 
2012, doi: 10.1073/pnas.1200296109 PNAS April 23, 2012
http://www.pnas.org/content/early/2012/04/16/1200296109

Best wishes,

Paul Heinrich