thumbnail

Comparison of thickness, grade, and depth of radioactive layers as determined by gamma-ray logging and by core sampling

Trace Elements Investigations 612

By:
DOI: 10.3133/tei612

Links

Abstract

Thickness, grade, and depth data were obtained by analyzing gamma-ray logs and core samples from 56 diamond drill holes penetrating uranium deposits in the Colorado Plateau. The data from the two methods were compared to determine variations found in gamma-ray log interpretation and chemical and radiometric analyses of the drill core. Correlations within each parameter varied among the drilling areas analyzed. Gamma-ray interpretations of grade compared to chemical analyses were within the range of -10 to +25 percent. Most depth measurements determined by gamma-ray log interpretation compared to drill core measurement were within 0.5 percent. Results of the study indicate a need for better thickness definition in both gamma-ray logging and core scanning equipment.

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Comparison of thickness, grade, and depth of radioactive layers as determined by gamma-ray logging and by core sampling
Series title:
Trace Elements Investigations
Series number:
612
DOI:
10.3133/tei612
Year Published:
1959
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Washington, D.C.
Description:
33 p.
Country:
United States
Online Only (Y/N):
N
Additional Online Files (Y/N):
N