Principal basement structures formed during the Precambrian in the continental United States based on interpretation of regional aeromagnetic anomaly data of North America.
Data sets include drill-hole from core and geophysical logs, surface geology and elevation, and helicopter electromagnetic survey data. The model may be explored and .jpg or .tiff images or using specialized software provided.
A GIS database of geologic units and structural features in Alabama, with lithology, age, data structure, and format written and arranged just like the other states.
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.
A GIS database of geologic units and structural features in Arizona, with lithology, age, data structure, and format written and arranged just like the other states.
A GIS database of geologic units and structural features in Arkansas, with lithology, age, data structure, and format written and arranged just like the other states.
A GIS database of geologic units and structural features in California, with lithology, age, data structure, and format written and arranged just like the other states.