Distribution of Potential Hydrothermally Altered Rocks in Central Colorado Derived From Landsat Thematic Mapper Data: A Geographic Information System Data Set As part of a mineral resource assessment, imagery data were used to help target areas where exposed rocks might be hydrothermally altered, providing an indication of the location of potentially mineralized areas that may contain mineral deposits.
Geochemistry of sediments in the US from the PLUTO database Geochemical data for unconsolidated sediments (stream sediments, lake sediments, etc.) collected in the US and analyzed by the USGS.
These data were originally entered in the PLUTO database, which is now merged into the National Geochemistry Database.
Geochemistry of stream sediments in the US from the NURE-HSSR database National-scale geochemical analysis of stream sediments and soils in the US collected and analyzed under the National Uranium Resource Evaluation program.
Geochemistry of water samples in the US from the NURE-HSSR database National-scale geochemical analysis of water samples in the US collected and analyzed under the National Uranium Resource Evaluation program.
The data were originally entered into the in-house PLUTO database. Active mines and mineral plants in the US Mine plants and operations for commodities monitored by the National Minerals Information Center of the USGS.
Operations included are those considered active in 2003 and surveyed by the USGS.
Precambrian basement structure map of the continental United States-an interpretation of geologic and aeromagnetic data Principal basement structures formed during the Precambrian in the continental United States based on interpretation of regional aeromagnetic anomaly data of North America.
Geological map data Characteristics of bedrock and surficial geologic terranes and structural features at various levels of detail.
This data set shows occurrences and historic mines.