Gamma-Ray Logging

Image of Chris Stohr measuring the height of a well casing.

ISGS Geologist Chris Stohr measures the height of the well casing before inserting the gamma-ray logging probe into a well to measure natural radioactivity of earth materials.


Updated 10/26/2009 SKB

ILLINOIS STATE GEOLOGICAL SURVEY
615 E. Peabody
Champaign, IL 61820
217-333-4747
info@isgs.illinois.edu

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