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gamma-ray logging
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gamma-ray logging

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Quick Summary

Gamma-ray logging is a technique used in well logging to analyze geological formations penetrated by a drill hole. This method measures the natural gamma rays emitted by isotopes of uranium, thorium, and potassium within the rock formations.12

Gamma-ray logging is particularly useful for determining the clay (shale) content in sedimentary rocks, as potassium-40, a principal emitter of gamma rays, is generally associated with clays. This information is valuable in the oil and natural gas industries for exploring and evaluating reservoirs.2

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2 Britannica Sources
  1. Earth exploration - Radioactive methods
  2. well logging

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