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Measuring magnetic susceptibility in the field

By Geology, Minerals, Energy, and Geophysics Science Center
USGS Research Geologist uses a field meter to measure magnetic susceptibility of basalt flows in the Mojave Desert.
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Detailed Description

Research Geologist Geoff Phelps measuring basalt flow thickness and magnetic susceptibility of individual basalt flows of the Broadwell Mesa Basalt in the central Mojave Desert near Ludlow, CA. 

Sources/Usage

Public Domain.