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Study Disputes Younger Dryas Event Comet Theory


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Study Questions Younger Dryas Event Comet

Theories, Red Orbit, May 14, 2014

http://www.redorbit.com/news/science/1113145713/younger-dryas-event-comet-impact-theory-051414/

Comet theory false; doesn’t explain cold snap

at the end of the Ice Age, Clovis changes or

mass animal extinction. SMU News Release

http://blog.smu.edu/research/2014/05/12/dating-of-supposed-extraterrestrial-impact-indicators-unreliable-fails-to-prove-comet-sparked-climate-change-at-the-end-of-the-ice-age-or-killed-clovis-people/

Research team claims no evidence of

extraterrestrial impact causing Younger

Dryas deep freeze, PhysOrg, May 13, 2104

http://phys.org/news/2014-05-team-evidence-extraterrestrial-impact-younger.html

http://phys.org/wire-news/161418589/comet-theory-doesnt-explain-cold-snap-at-the-end-of-the-ice-age.html

Meltzer, D. J., V. T. Holliday, M. D. Cannon, and

D. S. Miller, 2014, Chronological evidence fails to

support claim of an isochronous widespread layer of

cosmic impact indicators dated to 12,800 years ago.

Proceedings of the National Academy of Science

of the United Staea of America. Early Edition.

http://www.pnas.org/content/early/2014/05/08/1401150111.abstract

A related article is:

Study in Oklahoma panhandle finds additional

active process producing nanodiamonds, PhysOrg.

http://phys.org/news/2014-01-oklahoma-panhandle-additional-nanodiamonds.html

Bement, L. C., A. S. Madden, B. J. Carter, A. R. Simms,

A. L. Swindle, H. M. Alexander, S. Fine, and M. Benamarae

2014, Quantifying the distribution of nanodiamonds in

pre-Younger Dryas to recent age deposits along Bull Creek,

Oklahoma Panhandle, USA. Published online before print

January 21, 2014, doi: 10.1073/pnas.1309734111

http://www.pnas.org/content/early/2014/01/16/1309734111.abstract

Yours,

Paul H.

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That first linked article has a typo in the first sentence. It says 128,000 years ago. I think they mean 12,800 years instead.

Somewhere, something incredible is waiting to be known.–Carl Sagan

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