I believe that Michael meant for this to have been posted to the net.
----- Original Message -----
From: Michael Roberts <topper@robertschirk.u-net.com>
To: Allen Roy <allenroy@peoplepc.com>
Sent: Thursday, September 06, 2001 5:32 AM
Subject: Re: Important creationist book/ RC Sproul
> Surely this is all in Allen's imagination and has no empirical and
> observational basis. As for the collapse on the non-lithified rocks in a
> cavern where is the evidence?
>
> Is this any more scientific than the Hopi legend?
>
There have been earthen dams which have failed due to runaway piping through
soil around or through a dam (some causing catastrophic damage and loss of
life). The water behind the earthen dams seeped into the soils becoming
ground water. The water then seeped out of the soil downstream from the
dam. High head causes the ground water to move fast carrying away particles
of the soil and creating "pipes" in the soil. "Springs" appear on or
downstream from the dam. The "pipes" allow for greater movement of ground
water which increases the size of the "pipes." The whole process spirals
out of control as more and more soil is removed and the "pipes" grow larger.
Eventually the dammed water breaks through the weakened soils and the dam
fails. (The dam engineer commits Hari Kari.) This is about as empirical as
you can get.
On a minor point, I said "partially lithfied rocks," not "non-lithified
rocks."
As for evidence of collapsed rocks into a cavern, they would be washed away,
just as is the case with failed earthen dams.
Allen
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