- This is a Microsoft PowerPoint slide show. Click on the title above
to start the slide show.
-
- This report is preliminary and has not been reviewed for conformity
with U.S. Geological Survey editorial standards or with the North American
Stratigraphic Code. Any use of trade, product, or firm names is for descriptive
purposes only and does not imply endorsement by the U.S. Government.
-
- 1U.S. Geological Survey Denver, Colorado.
Central Region Mineral Resources
Program
U.S. Department of the Interior
U.S. Geological Survey
This page is <URL: https://pubsdata.usgs.gov/pubs/of/1998/ofr-98-0332/98-332.html>
Site Maintainers: Joan
Nadeau and Gene
Ellis
For more information about this report contact: David A. Lindsey
Last updated 07 Dec 2016