U.S. Geological Survey Open-File Report 92-025
Online version 1.0
By Valerie Paskevich
U.S. Geological Survey Open-File Report 92-025 is in Adobe Portable Document Format (PDF). Download a copy of Adobe Acrobat Reader version 5.0 for free.
Main report (151 kb PDF document)
PostScript version of report (74 kb)
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.