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Hydrothermal Alteration Maps of the Central and Southern Basin and Range...
Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data and Interactive Data Language (IDL) logical operator algorithms were used to map hydrothermally... -
Preliminary integrated geologic map data for Alaska
A GIS database of geologic units and structural features in Alaska, with lithology, age, data structure, and format written and arranged just like the other states.