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A simplified economic filter for open-pit gold-silver mining in the United States

Open-File Report 98-207

By:
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Abstract

In resource assessments of undiscovered mineral deposits and in the early stages of exploration, including planning, a need for prefeasibility cost models exists. In exploration, these models to filter economic from uneconomic deposits help to focus on targets that can really benefit the exploration enterprise. In resource assessment, these models can be used to eliminate deposits that would probably be uneconomic even if discovered. The U. S. Bureau of Mines (USBM) previously developed simplified cost models for such problems (Camm, 1991). These cost models estimate operating and capital expenditures for a mineral deposit given its tonnage, grade, and depth. These cost models were also incorporated in USBM prefeasibility software (Smith, 1991).


Because the cost data used to estimate operating and capital costs in these models are now over ten years old, we decided that it was necessary to test these equations with more current data. We limited this study to open-pit gold-silver mines located in the United States.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
A simplified economic filter for open-pit gold-silver mining in the United States
Series title:
Open-File Report
Series number:
98-207
Year Published:
1998
Language:
English
Publisher:
U.S. Geological Survey
Contributing office(s):
Geology, Minerals, Energy and Geophysics Science Center
Description:
13 p.