September 28, 2004 01:53PM
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Admin
Registered: 19 years ago
Posts: 7,749
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LeMaster wrote:
"Obviously erosion rates vary from one region to another
based on its climate, the type of rock and terrain,
in general the erosion rates provided is clearly
indicitive that limestone rock erodes at a very slow
rate, with the exception of the Niagara Falls."
The literal way LeMaster interprets erosion rates
is refuted by the below event:
Frank Slide, Alberta, The Day the Mountain Fell
Part 2 - The Mountain Walks at:
[
www3.sympatico.ca]
"A 640 metre high, 915 metre wide, 152 metre
thick (2,100 feet by 3,000 feet by 500 feet)
wedge of the eastern slope of Turtle Mountain
gave way and slid 700 metres (2,300 feet)
down the mountain side. An estimated
182,000,000,000,000 kg (one hundred million
tons) of limestone slid into the valley and
onto the town of Frank."
Even if the reoccurrence interval for this type of
landslide was one every 5,000 years, the average erosion
rate for the event would be 0.1 ft (0.3 m / 328 mm per
year), which greatly exceeds the erosion rates, which
LeMaster cites from the textbooks. If the event took
a minute to occur, then the erosion rate would be for
it, 500 ft per minute (152 meters per minute). This
is a classic example of how erosion rates, 1. vary
with time, 2. are dependant on the process doing
the erosion, and that erosion rates determined from one
process cannot be applied to otehr processes as LeMaster
does in his table of erosion rates.
This clearly refutes the contention that all limestones
under all conditions erode very slowly. Although this is
an extreme example, it demonstrates that depending on
the process involved the erosion of limestone can be
quite fast.
Best Regards,
Paul
Baton Rouge, LA
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Author |
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Steve LeMaster |
September 27, 2004 02:03PM |
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Warwick L Nixon |
September 27, 2004 02:36PM |
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Steve LeMaster |
September 27, 2004 03:38PM |
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Paul H. |
September 27, 2004 04:13PM |
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Steve LeMaster |
September 27, 2004 04:20PM |
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Gerd VDC |
September 27, 2004 04:23PM |
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Steve LeMaster |
September 27, 2004 04:25PM |
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Gerd VDC |
September 27, 2004 04:28PM |
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Steve LeMaster |
September 27, 2004 04:31PM |
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Gerd VDC |
September 27, 2004 04:38PM |
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Steve LeMaster |
September 27, 2004 04:40PM |
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Steve LeMaster |
September 27, 2004 04:45PM |
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Gerd VDC |
September 27, 2004 05:05PM |
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Steve LeMaster |
September 27, 2004 05:25PM |
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Gerd VDC |
September 27, 2004 05:33PM |
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Steve LeMaster |
September 27, 2004 05:40PM |
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Gerd VDC |
September 27, 2004 05:47PM |
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Gerd VDC |
September 28, 2004 06:17AM |
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Steve LeMaster |
September 28, 2004 06:29AM |
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Gerd VDC |
September 28, 2004 06:32AM |
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Steve LeMaster |
September 28, 2004 06:43AM |
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Anthony |
September 28, 2004 01:56PM |
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Anthony |
September 28, 2004 01:49PM |
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Archae Solenhofen |
September 28, 2004 12:01AM |
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Steve LeMaster |
September 28, 2004 02:13AM |
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Gerd VDC |
September 28, 2004 06:20AM |
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Steve LeMaster |
September 28, 2004 06:50AM |
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Gerd VDC |
September 28, 2004 07:06AM |
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Steve LeMaster |
September 28, 2004 07:17AM |
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Gerd VDC |
September 28, 2004 07:34AM |
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Anthony |
September 28, 2004 01:36PM |
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Warwick L Nixon |
September 28, 2004 10:27AM |
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Steve LeMaster |
September 27, 2004 03:44PM |
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Gerd VDC |
September 27, 2004 04:31PM |
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Paul H. |
September 27, 2004 07:21PM |
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Steve LeMaster |
September 27, 2004 07:31PM |
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Paul H. |
September 27, 2004 08:09PM |
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Steve LeMaster |
September 27, 2004 08:42PM |
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Gerd VDC |
September 28, 2004 06:29AM |
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Steve LeMaster |
September 28, 2004 06:40AM |
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Gerd VDC |
September 28, 2004 06:59AM |
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Steve LeMaster |
September 28, 2004 07:04AM |
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Gerd VDC |
September 28, 2004 07:07AM |
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Anthony |
September 28, 2004 10:08AM |
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Warwick L Nixon |
September 28, 2004 10:18AM |
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Steve LeMaster |
September 27, 2004 09:11PM |
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Steve LeMaster |
September 27, 2004 04:17PM |
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Steve LeMaster |
September 27, 2004 04:49PM |
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Gerd VDC |
September 27, 2004 05:13PM |
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Steve LeMaster |
September 27, 2004 05:35PM |
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Gerd VDC |
September 27, 2004 05:40PM |
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Steve LeMaster |
September 27, 2004 05:43PM |
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Gerd VDC |
September 27, 2004 05:44PM |
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Steve LeMaster |
September 27, 2004 05:46PM |
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Gerd VDC |
September 27, 2004 05:49PM |
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Steve LeMaster |
September 27, 2004 06:11PM |
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Steve LeMaster |
September 27, 2004 06:22PM |
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Steve LeMaster |
September 27, 2004 07:03PM |
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Paul H. |
September 27, 2004 07:40PM |
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Steve LeMaster |
September 27, 2004 07:46PM |
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Katherine Reece |
September 27, 2004 09:49PM |
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Paul H. |
September 28, 2004 02:00PM |
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Paul H. |
September 28, 2004 12:41PM |
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Steve LeMaster |
September 28, 2004 02:16PM |
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Gerd VDC |
September 28, 2004 02:25PM |
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Steve LeMaster |
September 28, 2004 02:44PM |
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Steve LeMaster |
September 27, 2004 06:32PM |
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Steve LeMaster |
September 27, 2004 06:44PM |
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Katherine Reece |
September 27, 2004 09:52PM |
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Anthony |
September 28, 2004 09:55AM |
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Paul H. |
September 28, 2004 01:53PM |
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Anthony |
September 28, 2004 01:58PM |
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Gerd VDC |
September 27, 2004 04:27PM |
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Steve LeMaster |
September 27, 2004 04:32PM |
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Anthony |
September 27, 2004 06:49PM |
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Steve LeMaster |
September 27, 2004 06:52PM |
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Steve LeMaster |
September 27, 2004 07:02PM |
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lobo-hotei |
September 27, 2004 07:22PM |
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Steve LeMaster |
September 27, 2004 07:36PM |
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lobo-hotei |
September 27, 2004 07:59PM |
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Steve LeMaster |
September 27, 2004 08:00PM |
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Anthony |
September 28, 2004 11:27AM |
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Gerd VDC |
September 28, 2004 06:35AM |
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Steve LeMaster |
September 28, 2004 06:43AM |
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Gerd VDC |
September 28, 2004 07:00AM |
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Warwick L Nixon |
September 28, 2004 10:12AM |
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Steve LeMaster |
September 28, 2004 02:17PM |
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Warwick L Nixon |
September 29, 2004 12:07PM |
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Steve LeMaster |
September 29, 2004 12:12PM |
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Warwick L Nixon |
September 29, 2004 12:18PM |
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Steve LeMaster |
September 29, 2004 12:19PM |
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Warwick L Nixon |
September 29, 2004 12:34PM |
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Anthony |
September 28, 2004 09:14AM |
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Steve LeMaster |
September 28, 2004 02:18PM |
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Gerd VDC |
September 28, 2004 02:33PM |
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Anthony |
September 28, 2004 03:07PM |
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Steve LeMaster |
September 28, 2004 03:10PM |
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Anthony |
September 28, 2004 03:12PM |
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Steve LeMaster |
September 28, 2004 03:16PM |
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Anthony |
September 28, 2004 04:03PM |
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Steve LeMaster |
September 28, 2004 04:12PM |
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Anthony |
September 28, 2004 10:35AM |
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Warwick L Nixon |
September 28, 2004 10:44AM |
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Gerd VDC |
September 28, 2004 11:14AM |
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Anthony |
September 28, 2004 11:21AM |
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Steve LeMaster |
September 27, 2004 08:34PM |
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Katherine Reece |
September 27, 2004 09:12PM |
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Steve LeMaster |
September 27, 2004 09:14PM |
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Gerd VDC |
September 28, 2004 06:52AM |
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Steve LeMaster |
September 28, 2004 06:54AM |
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Gerd VDC |
September 28, 2004 07:02AM |
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Steve LeMaster |
September 28, 2004 07:29AM |
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Gerd VDC |
September 28, 2004 07:36AM |
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Steve LeMaster |
September 28, 2004 02:53PM |
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Anthony |
September 28, 2004 03:17PM |
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Steve LeMaster |
September 28, 2004 03:35PM |
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Gerd VDC |
September 28, 2004 03:40PM |
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Steve LeMaster |
September 28, 2004 03:44PM |
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Gerd VDC |
September 28, 2004 03:52PM |
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Steve LeMaster |
September 28, 2004 03:57PM |
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Gerd VDC |
September 28, 2004 04:02PM |
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Steve LeMaster |
September 28, 2004 04:10PM |
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Gerd VDC |
September 28, 2004 04:34PM |
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Pete Clarke |
September 29, 2004 04:59AM |
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Gerd VDC |
September 29, 2004 05:58AM |
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Anthony |
September 29, 2004 06:27AM |
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Steve LeMaster |
September 29, 2004 06:55AM |
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Anthony |
September 29, 2004 07:03AM |
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Steve LeMaster |
September 29, 2004 07:09AM |
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Gerd VDC |
September 29, 2004 07:15AM |
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Steve LeMaster |
September 29, 2004 07:19AM |
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Pete Clarke |
September 29, 2004 07:21AM |
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Steve LeMaster |
September 29, 2004 07:23AM |
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Pete Clarke |
September 29, 2004 08:41AM |
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Warwick L Nixon |
September 30, 2004 09:21AM |
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Warwick L Nixon |
September 30, 2004 09:27AM |
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Pete Clarke |
September 30, 2004 09:28AM |
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Warwick L Nixon |
September 30, 2004 10:01AM |
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Anthony |
September 30, 2004 10:17AM |
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Pete Clarke |
September 30, 2004 10:29AM |
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Anthony |
September 30, 2004 10:41AM |
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Pete Clarke |
September 30, 2004 10:49AM |
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Warwick L Nixon |
October 01, 2004 01:51PM |
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Pete Clarke |
October 04, 2004 03:16AM |
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John Wall |
October 03, 2004 04:52PM |