Crustal Geophysics and Geochemistry Science Center

Geophysics of the Rio Grande Basins

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San Luis Basin Geophysics

Aeromagnetic Expression of Ancient Volcanoes

Illustration of aeromagnetic polarity interpretations.
Qualitative illustration of aeromagnetic polarity interpretations, using Ute Mountain as an example. A: Elevation map of Ute Mtn. B: Measured aeromagnetic field (reduced-to-pole) over Ute Mtn. C: Hypothetical aeromagnetic field assuming normally and uniformly magnetized Ute Mtn. D: Hypothetical aeromagnetic field assuming reversely and uniformly magnetized Ute Mtn. Note similarity between B and D, leading to interpretation that Ute Mtn. is at least mostly composed of reversely magnetized rocks.

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