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To: muawiyah; colorado tanker

I have to doubt some of your claims, muawiyah. Meltwater Pulse 1A was a couple of inches per year. It looks dramatic on graphs covering many centuries, but it’s not like that all occurred at once. We don’t see Storegga-like evidence of what you describe. Obviously, there were GLOF events, but they are localized.

Note also that the hypothetical comet was about 13 ka, not 11 ka.


51 posted on 08/25/2010 3:04:30 PM PDT by Gondring (Paul Revere would have been flamed as a naysayer troll and told to go back to Boston.)
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To: Gondring

Try my post at #47 for a more exacting coverage of when things happened ~ 15 was a quick off the cuff answer to a general issue ~ wasn’t meant to be definitive.


56 posted on 08/25/2010 6:01:25 PM PDT by muawiyah
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To: Gondring
Just doing a quick look at the current view of the sea level rise situation and it looks like 6 major incidents over 6,000 years did quite a trick.

Now about Storegga-like events ~ those involve physical displacement, by a landslide, earth-fault movement, etc.. What I'm concerned with is quite a bit different. That is the sudden break of an ice dam that releases huge amounts of water.

Glacial Lake Agassiz has been studied extensively. Now, scale that up to something the size of Antarctica. Let an ice wall form at the boundary of the once far larger ice sheet as it melts at the end of the period of maximum glaciation.

The circum polar cyclone will take care of keeping the water draining to the lowlands at the boundary between sea ice and land COLD ENOUGH TO REFREEZE to form that wall.

Let the wall build up to some unsustainable height and there ought to be a sudden break, just like with Glacial Lake Agassiz' ice dam.

Pour out a couple of miles of melted ice sheet, with vast quantities of ice into the ocean surrounding Antarctica and you would have the largest tsunami possible on the planet.

There'd be no more rock debris from this sort of event than you'd get from any flow of just water.

That would be quite enough to destroy virtually all of the cheetahs but a mother with cubs hidden in a cave up a mountain side somewhere in the Kalahari! Their adaptation to exceedingly flat alluvial plains would have killed all but that cat! Something similar would happen on all of the coastlines of every South-facing piece of continental landmass.

I'd like to note here that due to the fact ocean levels were quite a bit lower at that time the worst damage would be in areas well offshore.

58 posted on 08/25/2010 6:22:22 PM PDT by muawiyah
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