Posted on 06/15/2008 12:06:45 PM PDT by decimon
Good. Right now, I’m the poster child for Mucinex myself...
Yeah, you'll be alright. It's when you're under the climate that you need to worry.
“My be is that creatures evolved because their environment suddenly changed”
I’m with you, although I think there is also room for more gradual transitions. Sudden and/or drastic: Yucatan meteor and Deccan trappes=dinosaur extinction; Permian, evidence of impact crater(s) possible, Siberian trappes for sure; significant die-offs as result of Chesapeake Meteor 50 mile diameter crater and larger in Siberia 34,000 years ago; I know there are other large boloid events, but have not yet compared their ages with extinction event. Then there is Firestone’s Cosmic Catastrophes proposal for the death of the megamammals about 13,000 years ago. Any major boloid or volcanic event could triger ice age type events, which would definitely cause a significant drop in sea levels which this article posits as cause rather than effect.
Slow and gradual: tectonic plate movement causing the closing off of open waterways could also affect ocean circulations which could cause more gradual changes in climate and fauna/flora, also the gradual pushing up of mountains (one source for twisted geological features) would change wind circulation and weather patterns. Subduction causes volcanos which if large enough or plentiful enough would changed environments. There are probably others, but it is time for my lunch, so goodby for now.
Blam: hope you are feeling better.
Do you have a link/source for your “the moon was 70% closer then?” And when was the then you refer to?
here’s one:
When the Days Were Shorter
Alaska Science Forum (Article #742) | November 11, 1985 | Larry Gedney
Posted on 10/04/2004 10:31:59 AM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1234919/posts
-and here’s some other topics probably related and/or of interest:
Moon over Chicxulub: Will Night Finally Fall on the Dinosaur-Extinction Debate?
American Scientist | November-December 1998 | Kirk Johnson
Posted on 09/21/2005 10:32:02 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1489125/posts
Mass Extinctions: The New Catastrophism in the History of Life
LORE magazine, Milwaukee Public Museum | 1996 | Peter M. Sheehan, Curator of Geology
Posted on 10/10/2005 4:50:02 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1500154/posts
Clare Places: Islands: Mutton Island or Enniskerry
(9th century catastrophe in Ireland)
Clare County Library | prior to November 19, 2005 | staff writer
Posted on 11/18/2005 11:58:58 AM PST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1524751/posts
In the shadow of the Moon
New Scientist | 30 January 1999 | editors
Posted on 08/31/2004 8:42:25 AM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1203912/posts
No doubt, though, it was all caused by man-made global whatever. Retroactively, of course.
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