Posted on 08/30/2006 7:56:30 PM PDT by FairOpinion
A 30-mile maze canyons in Antarctica was carved out of bedrock by the catastrophic draining of subglacial lakes during global warming between 12 million and 14 million years ago, according to university researchers who warn a similar event today could have serious environmental consequences.
Although scientists have previously theorized that the Labyrinth region in southern Victoria Land was created by water released from lakes that had formed under glaciers, researchers at Syracuse University and Boston University say they found geological evidence to bracket the timing of the last major flooding and link it to a global warming trend at the time.
The scientists pinpointed the timing of the last subglacial flood by dating volcanic ash preserved on bedrock surfaces, said Laura Webb, a professor of earth sciences at Syracuse who took part in the study.
The Labyrinth is a network of ice-free bedrock channels and scoured terrain emerging from beneath the East Antarctic Ice Sheet. It is one of a series of large channel networks that cross the Transantarctic Mountains. Some of the chasms are up to 800 feet deep and thousands of feet wide. Scientists have long speculated that the volume of water required to create the channels was far more than that produced by melting glaciers.
(Excerpt) Read more at physorg.com ...
I KNEW IT!
I guess it's that time of the millionth year again...
Must have been that SUV that Fred Flintstone drove.
It was all those damn mastadons driving around in their SUVs. Serves them right that they went extinct.
Pff... everyone knows cars weren't invented 12 million years ago.... it was Bush's fault. </sarc>
Couldn't have been caused by gaseous emissions - they didn't even have a Congress back then.
Yabba dabba dooooo.
It seems a similar event happened repeatedly in the American Northwest during the last Ice Age.
I guess the modern environmentalist would prefer Earth never exited the last Ice Age. Just think - Ted Kennedy would not have been able to drown Mary Jo if Martha's Vineyard was under 4,000 feet of ice.
During the very long intervals between the "interglacial periods" the glaciation peaks wax and wane creating repeated major melt events at the margins.
Then there's this little message before the first paragraph to consider:
Is Global Warming Real? - Get Renowned Financier George Soros' Opinion on Global Warming
Don't joke around like that. There is at least one eyewitness to this event 12 million years ago who may well blame it on Bush:
Since they are in Antarctica, are they called "coulees" also? ;-)
Do you have any more info on that? Thanks.
Don't tell me, Bush is also a time traveler?
Or, is he really that old?
Google "scablands" and "Lake Missoula."
Thanks!
Is that graph for me?
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