[meteorite-list] Asteroid Impacts May Have Triggered Plate Tectonics

Jerry grf2 at verizon.net
Wed Jan 16 18:00:19 EST 2008


Before I read the following links, I'd like to express my unscientific 
opinion about this subject.
I'm sure there are numerous causes for the separation of Pangaea into its 
present configuration, that is, the present continental shapes.
As I became enthralled with the impact hypothesis surrounding the K/T 
event. I mused that Pangaea had been impacted by a "string" of meteorites 
actually "perforating" it in some places to trigger the break-up.
As a Northeasterner I mused that, the Baltic, Africa and NE NA, might 
present such a "perforation" boundary.
As I said earlier, Volcanism and Plate Tectonics [presently I can't think of 
any other causes]  might be sufficient to trigger break-up. Today, 
California and eastern Africa don't seem to need much else.
So, That being said, I'll eagerly return to read the links associated with 
this post. Thanks for your patience.
Jerry Flaherty
----- Original Message ----- 
From: "Paul" <bristolia at yahoo.com>
To: <meteorite-list at meteoritecentral.com>
Sent: Wednesday, January 16, 2008 1:05 PM
Subject: [meteorite-list] Asteroid Impacts May Have Triggered Plate 
Tectonics


Meteor Pelting May Have Triggered Plate Tectonics
Larry O'Hanlon, Discovery News

http://dsc.discovery.com/news/2007/12/10/meteors-earth.html
http://dsc.discovery.com/news/2007/12/10/meteors-earth-print.html

Hansen , V. L., 2007, Subduction origin on early Earth: A hypothesis.
Geology. vol. 35, no. 12, pp.  1059-1062

http://www.gsajournals.org/perlserv/?request=get-abstract&doi=10.1130%2FG24202A.1

Yours,

Paul H.


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