[FPSPACE] FW: Comet or asteroid as cause of Ice Age extinctions

[LARRY KLAES]

>From: "John M. McMahon" <mcmahon at LEMOYNE.EDU>
>Reply-To: History of Astronomy Discussion Group <HASTRO-L at listserv.wvu.edu>
>To: HASTRO-L at listserv.wvu.edu
>Subject: [HASTRO-L] Comet or asteroid as cause of Ice Age extinctions
>Date: Thu, 3 Jul 2008 07:37:56 -0400
>
>Science Daily 7/3/08:
>
>"Exploding Asteroid Theory Strengthened By New Evidence Located In Ohio,
>Indiana"
>
>"Geological evidence found in Ohio and Indiana in recent weeks is
>strengthening the case to attribute what happened 12,900 years ago in North
>America -- when the end of the last Ice Age unexpectedly turned into a 
>phase
>of extinction for animals and humans ­ to a cataclysmic comet or asteroid
>explosion over top of Canada."
>
>[snip]
>
>"The timing attached to this theory of about 12,900 years ago is consistent
>with the known disappearances in North America of the wooly mammoth
>population and the first distinct human society to inhabit the continent,
>known as the Clovis civilization. At that time, climatic history suggests
>the Ice Age should have been drawing to a close, but a rapid change known 
>as
>the Younger Dryas event, instead ushered in another 1,300 years of glacial
>conditions. A cataclysmic explosion consistent with West¹s theory would 
>have
>the potential to create the kind of atmospheric turmoil necessary to 
>produce
>such conditions."
>
>More:
>
>http://www.sciencedaily.com/releases/2008/07/080702160950.htm
>
>JMM / LMC