Discussion of Disc Contents System Requirements Installation Disclaimer FIGURES: Figure showing probability curve for tons of molybdenum. Figure showing probability curve for tons of ore.

Known Bugs in the Released Version of MARK3 The version of the MARK3 program as contained on the CD-ROM published in February of 2001 contains a known problem in that the tonnages calculated when using the lognormal option are not correct.  The correct values can be calculated by taking the following equation: Tcorrected = Square Root(Tcalculated/100) You can also download a revised version of the program.  Please note that the download file is approximately 10.5 Mb in size and may take a significant time to download depending upon the speed of your internet connection.

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

This page is https://pubs.usgs.gov/openfile/of00-415/pgmbugs.htm

Contact: jduval@usgs.gov
Last modification: 02/21/2001 (jmw)