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Re: The Western Interior Seaway (and computers)


----- Original Message ----- From: "David Marjanovic" <david.marjanovic@gmx.at>
To: "DML" <dinosaur@usc.edu>
Sent: Tuesday, June 28, 2005 3:25 PM
Subject: Re: The Western Interior Seaway (and computers)


Cold water at the poles
sinks, drawing the warm water from the equator northward to take its
place.  The cold water then upwells near the tropics to begin the process
over.  It apparently works very well on a global scale in extremely deep
water.  But in a shallower epieric sea, would it still work?

In a reportedly 40 (yes, forty) m deep sea, I don't think so...

But what about those portions of the sea that were reported to have been on the order of 100-200 m deep? As an aside, I expect the counterclockwise gyre was probably wind-driven.

Assuming the water was clean enough, the sun shone to the bottom of the WIS.

Is that a safe assumption, given the sediment flows reported in the seaway?