Re: extreme flow beaches

David Yeamans, CST-7, 5-8832, dryeamans@lanl.gov (dryeamans@lanl.gov")
Fri, 03 Oct 1997 15:35:56 -0600


>> So, fellow dilletantes, the stakes may have been raised.
>
>However, it is important to keep in mind that there may be totally
>different approaches to localizing sources -- statistical distribution
>of different kinds of grains, coupled with good models of transport,
>might actually give some good clues. Heavy duty study of chemical
>composition might be done for a few clear-cut reference sources, for
>calibration. But it might not be necessary...
>
>--
>Kent Crispin "No reason to get excited",
>kent@songbird.com the thief he kindly spoke...

The study is going to be heavy duty, whether it be with x-rays or with
shovels. I'll admit that sedimentology was my least favorite of the geology
courses so I am looking to see if a way exists to identify the nature of
deposits chemically rather than by counting grains. For one thing, I think
smaller sample sizes would be required. The other side of it is that an
army of private boaters can be trained to identify and count grains on the
slide of a binocular microscope for little or no money and we get free data.

You are absolutely right that clear cut reference sources should be our
starting point for either chemical or sedimentological study. References
are needed in either kind of work. I think we need Drifter to make us a
map or refer us to a map that shows high water alluvium so we can get
samples or take our microscopes to the field. Of course all soil
disturbances will have prior approval of NPS. Heck, NPS might even let us
get on river a year sooner if we promise them some good science.

I am still searching for Jumps-To-Save.

Dave Yeamans

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