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Thursday, 1 January 2009

URLs for "Comet hits North America 13, 000 years ago" Science paper

URLs for "Comet hits North America 13, 000 years ago" Science paper

Paul bristolia at
Thu Jan 1 23:31:48 EST 2009

In "LATimes- Comet hits North America 13, 000 years ago" at: ,
Howard Wu wrote:

"E.P. Grondine is going to love this one,0,896970.story

>From the Los Angeles Times

Diamonds show comet struck North America, scientists
say The impact caused an ice age that killed some mammal
species and many humans 12,900 years ago, researchers
report. They say the discovery of tiny heat-formed
diamonds is proof of the catastrophe. By Thomas H. Maugh,
January 1, 2009"

Another article is "Six North American Sites Hold
12,900-year-old Nanodiamond-rich Soil", ScienceDaily
Jan. 1, 2009.

The above articles refer to:

Kennett, D. J., J. P. Kennett, A. West, C. Mercer,
S. S. Que Hee, L. Bement, T. E. Bunch, M. Sellers,
and W. S. Wolbach, 2009, Nanodiamonds in the
Younger Dryas Boundary Sediment Layer. Science.
vol. 323. no. 5910, p. 94. DOI: 10.1126/science.1162819

Commentary on this article can be found in:

Kerr, R. A., 2009, PLANETARY IMPACTS: Did the Mammoth
Slayer Leave a Diamond Calling Card? Science., vol. 323.
no. 5910, p. 26. DOI: 10.1126/science.323.5910.26

Tomorrow, while at work I will download the PDF files
for the paper and article and have a look at them.

Best Regards,

Paul H

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