A synthesis of borehole geophysical data at the underground research laboratory, Manitoba, Canada

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Authors:Keys, W. Scott
Author Affiliations:Primary:
U. S. Geol. Surv., Denver, CO, United States
Source:No.BMI/OCRD-15, 43p. Availability: NTIS, Springfield, VA, United States
Publication Date:1984
Note:In English. Technical report. 7 refs.Prepared for Battelle Mem. Inst., Off. Cryst. Repos. Dev., Columbus, OH
Summary:Geophysical well logs were used to distinguish and correlate rock types and fractures between drill holes. Two significant fracture zones were identified by acoustic-televiewer logs. A new heat-pulse flowmeter provided repeatable measurements of very low-velocity, vertical flow in drill holes which enabled the identification of specific fractures that were transmitting water. Borehole gamma spectra showed that some fractures are enriched in uranium, and others may be depleted.—Modified journal abstract.
Subjects:Acoustical logging; Applications; Boreholes; Caliper logging; Engineering geology; Fractures; Gamma-ray methods; Granites; Ground water; Igneous rocks; Movement; Plutonic rocks; Radioactivity; Surveys; Temperature logging; Waste disposal; Well-logging; Canada; Lac du Bonnet Manitoba; Manitoba; Western Canada
Record ID:1984055932
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute.
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