Images are here..
One of these washed up the Willamette Valley, BTW. The "intelligent design" folks use this stuff, too. Be careful out there.
T
Feb 15, 2011 06:34:14 AM, tbsam...@verizon.net wrote:
--------------------------------------------------------------------- Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.comI think there's a computer generated model of this flood somewhere out there...if I find it, I'll post it."let me take you to the Channeled Scablands, baby!"T
Feb 14, 2011 07:58:53 PM, gi...@att.net wrote:Interesting, Diana. Thanks--------------------------------------------------------------------- Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
--Ediger
On Mon, Feb 14, 2011 at 4:22 PM, Diana Tomchick
wrote:
> I first heard of the Glacial Lake Missoula flood in my Physical Geology class at Washington State University. The most famous coulee that resulted from the flood was of course the one that was filled with water as a result of the Grand Coulee Dam. It was always a treat to hear about interesting geologic formations (and the state of Washington is full of them), then go on a short road trip to see them firsthand.
>
> For photos of the current landscape and an interesting graphic outlining the extent of the flooding, see this article from the Washington State University alumni magazine and also the Ice Age Floods Institute web site.
>
> http://wsm.wsu.edu/s/index.php?id=472
>
> http://www.iafi.org/
>
> Diana
>
> * * * * * * * * * * * * * * * * * * * * * * * * * * * *
> Diana R. Tomchick
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> Department of Biochemistry
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> On Feb 13, 2011, at 9:28 PM, Mixon Bill wrote:
>
>> The cave connection of this second item from the "Windy City Speleonews" is just J Harlen Bretz. Yes, no period after the J, which was his full name. I had lunch with him when he was 94 at his house, Boulderstrewn, in Homewood, Illinois. I happened to drive by, on the way to the NSS convention in Bellingham, Washington, a few years ago, the Dry Falls three miles wide, where the state of Washington has a picnic area and displays. One non-technical source on the falls is http://www.gonorthwest.com/Washington/northeast/Dry_Falls.htm, although links onward from that page are broken. -- Mixon
>>
>> Cavers know J Harlen Bretz mainly as the author of "Caves of Missouri" and coauthor of "Caves of Illinois," which was published when he was 78 years old. To speleologists, he is best known for his famous 1942 "Journal of Geology" paper on vadose and phreatic features of caves. But his geological studies were by no means restricted to caves, and he is probably best known for (and is most proud of) of series of papers published between 1923 and 1932 in which he described the very peculiar geology of a large area in eastern Washington that he correctly attributed to a catastrophic flood. This theory was considered outrageous at the time, partly, at least, because it was a departure from the only recently ascendent geological dogma of uniformitarianism. But more recent research has fully proved him right.
>>
>> A lake, called Lake Missoula, was created in western Montana by a dam of glacier ice in northern Idaho. The lake contained some four hundred cubic miles of water that were released suddenly when melting caused the dam to fail. The resulting flood, called the Spokane Flood after the city presently near the upstream end, scoured nearly three thousand square miles down to bedrock and created huge canyons and cataracts, one three miles wide. It deposited gravel bars, some of which contain boulders several feet in diameter, a hundred feet high and a mile long, topped with giant current ripple-marks ten feet high. The water ponded behind the Wallula Gap, through which it poured a thousand feet deep. The peak flow from Lake Missoula, attested to by current ripples fifty feet high, has been calculated at twenty million cubic meters per second. (This is fifteen _cubic miles_ per hour. For comparison purposes, it is one hundred fifty times the mean flow of the Amazon River and ten or twenty times the total average flow of fresh water into the oceans of the world.) In a few days, it was all over.
>>
>> (Actually, there were a good number of such floods, as the ice dam reestablished itself. Note added 2011.)
>> ----------------------------------------
>> A fearless man cannot be brave.
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