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Map Releases

Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. 

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Aeromagnetic and Gravity Maps of the Central Marysvale Volcanic Field, Southwestern Utah Aeromagnetic and Gravity Maps of the Central Marysvale Volcanic Field, Southwestern Utah

Gravity and aeromagnetic features in the Marysvale volcanic field result from the composite effects of many factors, including rock composition, style of magmatic emplacement, type and intensity of rock alteration, and effects of structural evolution. Densities and magnetic properties measured on a suite of rock samples from the Marysvale volcanic field differ in systematic ways...

Bathymetry of the Republic of the Marshall Islands and vicinity Bathymetry of the Republic of the Marshall Islands and vicinity

The bathymetric map of the Republic of the Marshall Islands and vicinity is bounded by a window of latitude 3 to 17 degrees North, longitude 153 to 175 degrees East. The map was compiled from surveys conducted by the USGS, Korean Ocean Research and Development Institute, and published gridded data. In addition to national jurisdictions, island and atoll coastlines are indicated on the...

Bituminous coal production in the Appalachian Basin: Past, present, and future Bituminous coal production in the Appalachian Basin: Past, present, and future

This report on Appalachian basin coal production consists of four maps and associated graphs and tables, with links to the basic data that were used to construct the maps. Plate 1 shows the time (year) of maximum coal production, by county. For illustration purposes, the years of maximum production are grouped into decadal units. Plate 2 shows the amount of coal produced (tons) during...
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