The Empire Strikes Back

[Minimalist]

Well, the geneticists and Beringia-crossing folks seem to have gotten together.

http://www.sciencedaily.com/releases/2009/01/090108121618.htm

After the Last Glacial Maximum some 15,000 to 17,000 years ago, one group entered North America from Beringia following the ice-free Pacific coastline, while another traversed an open land corridor between two ice sheets to arrive directly into the region east of the Rocky Mountains. (Beringia is the landmass that connected northeast Siberia to Alaska during the last ice age.)

[kbs2244]

This is something I found while looking for rock art information.

Rock art, but also “fluted points” 12,000 BP in Wisconsin.

http://www.uwlax.edu/mvac/SpecificSites/SilverMound.htm

This site is in the western quarter of Wisconsin, at about the half way point North to South across the state. It is about 230 mile from the Kenosha County mammoth kill site.

[E.P. Grondine]

This is something I found while looking for rock art information.

Rock art, but also “fluted points” 12,000 BP in Wisconsin.

http://www.uwlax.edu/mvac/SpecificSites/SilverMound.htm

This site is in the western quarter of Wisconsin, at about the half way point North to South across the state. It is about 230 mile from the Kenosha County mammoth kill site.

Given the comet fragment impacts at 10,900 BCE (13kya), I amd real suspicious as to how that 12,000 BP date was obtained.

E.P. Grondine
Man and Impact in the Americas

[E.P. Grondine]

Well, the geneticists and Beringia-crossing folks seem to have gotten together.

http://www.sciencedaily.com/releases/2009/01/090108121618.htm

After the Last Glacial Maximum some 15,000 to 17,000 years ago, one group entered North America from Beringia following the ice-free Pacific coastline, while another traversed an open land corridor between two ice sheets to arrive directly into the region east of the Rocky Mountains. (Beringia is the landmass that connected northeast Siberia to Alaska during the last ice age.)

Hi min -

If you go looking for Dr Firestone's team's AGU presentation from 2006, you'll see the peppered mammoth tusks from a massive iron asteroid impact around 32,400 BCE. That impact may have ended the C mt DNA haplogroup's migration to the Americas via Berringia.

That impact along with another massive iron impact in eastern Siberia around 24,300 BCE, probably mark the separation of the North American C and A mt DNA haplogroups, with A arriving after 24,300 BCE.

At least that's my current best guess. Your own results may differ.

E.P. Grondine
Man and Impact in the Americas