[Rockhounds] Another extinction impact-13 KYA-No Red Herring

[Dora Smith]

Eman, the flow of ice into the North Atlantic would need to keep it up for 
longer than a day or two to change the North Atlantic currents so as to 
bring on an ice age.

But I'd like to know more about the comet.  Will look at the article someone 
posted when I get a chance.   Can you suggest any more sources of 
information?

Please not "What happened to the Clovis people".    Those discussions 
usually come just this side of concluding that those people beamed up,and 
then there's always what WAS Clovis culture.

Yours,
Dora Smith
Austin, TX
tiggernut24 at yahoo.com
----- Original Message ----- 
From: "Mr EMan" <mstreman53 at yahoo.com>
To: "Rockhounds at drizzle.com: A mailing list for rock and gem collectors" 
<rockhounds at lists.drizzle.com>
Sent: Saturday, January 03, 2009 12:33 AM
Subject: Re: [Rockhounds] Another extinction impact-13 KYA-No Red Herring


Red Herring? I have to disagree. As one who is a part time researcher--  
sampling glacial outwash planes in the northeastern US for glass microsphere 
deposits. I've kept abreast of this topic before it became a topic. There is 
evidence mounting weekly that a major cometary impact occurred over north 
eastern North America approx. 12,900-13,100ybp. Strata of "black sand mats" 
containing glass microspheres, charcoal, nano-diamonds, and
Buckyballs are bening located all over eastern North America: From
caves in near both Cinncinatti and Sandusky Ohio over to the enigmatic 
"Carolina
Bays" features up and down the east coast. Meteoric iron embedded in Mammoth 
Tusks and Bison horns from other times suggest large impacts occured several 
times earlier in the present ice age.

Ice dam breaching ( if that is what it was) apparently occurred at several 
places along the icesheet front simultaneously. While it is true that 
massive meltwater runoff is likely to have changed ocean currents, an impact 
can account for causing that sudden melting. The present lack of identified 
impact crater is understandable given the true depth of the existing ice 
sheet(2miles?) is not known but, could have absorbed most or all of the 
impact whithout leaving easily located deposits of insitu impactites. There 
is no primary strata left to analize--as of yet but many are working on it 
finding evidence in situ not just in outwash deposits. If we look at the 
rock called Ice and think of melting as erosion, it puts erosion on a 
accelerated timescale never seen before. Which has good and bad points for 
reconstructing the events.

Hardly a red herring but a mounting body of evidence which ties together the 
younger dryas anomomally, regional extinction of large ice age animals 
populations which never returned and, dissapearance of the Human Clovis 
culture in mid and northern North America for approximately 800 years.

Eman

--- On Fri, 1/2/09, Dora Smith <tiggernut24 at yahoo.com> wrote:
Thanks. The article is a red herring. It has been satisfactorily 
demonstrated that the abrupt cooling was the result of the massive 
outpouring of melted ice into the northern Atlantic when an ice bridge that 
had held it back melted.


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