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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | Re: GISList: USA Surface Geology |
| Date: |
08/07/2001 10:48:13 PM |
| From: |
David Nealey |
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Diane, the portal into the National Geologic Map Database is:
http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html
Much of the central US's surficial geology was digitized by the National
Cooperative Geologic Mapping Team in Denver in the 90s. The project chief
was Jack Reed (retired), and David Moore and Chuck Bush were involved in the
project. You can contact David and Chuck through the USGS phone directory
to get the status of the data. When I left in 98, they had reached as far
west as the Rockies. Another project based out of Reston was digitizing the
geology at 1:100,000-scale.
Some of the states in the central part of the country have excellent GIS
staffs. Contact each staff's geologic survey. You may have to reproject
and edgematch those data in house.
LDN
----- Original Message -----
From: "Diane True" <dtrue@cerc.cr.usgs.gov>
To: "GIS List" <gislist@geocomm.com>
Sent: Thursday, August 02, 2001 12:52 PM
Subject: GISList: USA Surface Geology
> We are currently working on a project to create geolandforms for a large
> portion of the Central United States. We have 30 meter DEM's (NED)
> which we used to create the landforms, but we have not been able to come
> up with a good source for surface geology. We tried to manipulate the
> STATSGO soils polygons as a surrogate. However, we really couldn't come
> up with an acceptable way to get at parent material. Does anyone know
> of a free or reasonably priced source for geology that is available for
> all the coterminous US? We need 1:100,000 or better.
>
>
http://www.cerc.cr.usgs.gov/morap/projects/landform_model/winter00update.htm
>
> TIA,
> dt
>
> --
> C.Diane True
> Missouri Resource Assessment Project
> http://www.cerc.cr.usgs.gov/morap/
> (USA voice) 573-875-5399
>
>
>
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