U.S. Geological Survey

Codicil to the
Geophysical Expression of
Selected Mineral Deposit Models

W.D. Heran, Editor

U.S. Geological Survey Open-File Report 94-0174

This publication is a compilation of descriptive geophysical models for
seven mineral deposit types. It is an extension of an earlier publication,
"The Geophysical Expression of Selected Mineral Deposit Models" (USGS
Open-File Report 92-0557, D. Hoover, W.D. Heran, and P. Hill, editors, 1992).
The models follow the classification scheme presented in "Mineral Deposit Models"
(USGS Bulletin 1693, D. Cox and D. Singer, editors, 1986). In this paper each of
the geophysical models includes a summary of the mineral deposit geologic setting,
the geophysical expression of the regional environment, a geophysical definition of
the deposit, a physical property table for the deposit, and extensive reference lists.

Originally published in 1994, this report is presented here in
Portable Document Format. Adobe Acrobat Reader 3.0™
is required to view it. If you already have Acrobat Reader 3.0
installed on your computer, click here to access the text (1.8 Mb).
If you wish to download Acrobat Reader 3.0 free of charge, click here.
The volume consists of seven separate files and may be navigated using links
(highlighted in red) within the table of contents.

USA.gov logo  Take Pride in America button

For more information about this report contact William D. Heran at wheran@usgs.gov