Crustal Geophysics and Geochemistry Science Center

Geophysics of Rio Grande Basins

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Gravity Method

Gravity Anomaly Map
The Santa Fe Group has much lower density than the surrounding bedrock, producing low values (blues and purples) on the gravity anomaly map.
Base of aquifer system
Perspective view of the southern part of a model of the basin showing the base of aquifer system; that is, with the Santa Fe Group stripped off. The model was derived from the gravity data, constrained by deep drill-hole information.

Click for more information on the gravity method.

Mineral Resources Program
Eastern Central GMEG Alaska Minerals Information Crustal Geophysics and Geochemistry Spatial Data