V[ersion] 2.1. - [Washington, D.C.] : U.S. Geological Survey, 2004.
Software/Multimedia — 1 DVD-ROM : col. ; 4 3/4 in.
"These data represent analyses of rock, sediment from various sources, soil, heavy mineral concentrate (derived from stream sediment, soil or rock), leachate (derived from earth materials), water, and organic material samples."
Version 1.0. - [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by USGS Information Services, 2002.
Book — 1 CD-ROM : col. ; 4 3/4 in.
Presents results of studies of 22 mining districts in central part of western slope of Colorado. These studies were undertaken to characterize mined materials, mine drainage, and influence of historic mining on nearby streams, and include sampling and chemical analysis of mine dumps, mill tailings, mine drainage, and surface waters.
2. Minerals information for the world exclusive of North America.
Contains Mineral Resource Data System (MRDS) and Minerals Availability System/Minerals Industry Location System (MAS/MILS) databases. MRDS database features almost 200 data fields describing metallic and nonmetallic mineral resource, deposits, and commodities. MAS/MILS database includes almost 100 data fields describing mines and mineral processing plants.
Reston, VA : The Survey ; Denver, CO : For sale by the USGS Information Services, 1996.
Map — 1 CD-ROM : col. ; 4 3/4 in.
Digital versions of geology and resource assessment maps originally published in 1987. Seven layers are available: geology and faults; gold mining area geology; favorable domains for selected deposit types; Bouguer gravity contours and lineaments; isostatic gravity contours; mineral deposits, prospects, and occurrences; and rock geochemistry sample points. Accompanied by MAPPER display software. (source: Nielsen Book Data)