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 H.
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 H.