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U.S. Geological Survey Open-File Report 00-415

A Microsoft Windows Version of the MARK3

Monte Carlo Resource Simulator

By Joseph S. Duval


System Requirements



Example of Program Output

Known Program Bugs and Program Download


Figure showing probability curve for tons of molybdenum

Figure showing probability curve for tons of ore

This publication includes a version of the MARK3 Monte Carlo resource simulator that will run under Microsoft Windows 98, NT, and 2000.  The disc also includes grade and tonnage information and related deposit model files that allow the user to calculate probability curves for mineral resources.  A total of 113 deposit models are included on the disc although some of them are subsets of others.  In most cases the list of deposits with associated grade and tonnage data are also present.  Ten of the models contain proprietary information and the grade and tonnage for those are not included.

The program includes an extensive help file that provides information about the program and about the concepts that are the basis of the program and this method for estimating quantitative mineral resources. Metadata are available.

Ordering U.S. Geological Survey Products: call toll-free (from the U.S.) 1-888-ASK-USGS, or e-mail

U.S. Department of the Interior, U..S. Geological Survey

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Last modification: 02/21/2001 (jmw)