Apparent earth conductivity over coal mines as estimated from through-the-earth electromagnetic transmission tests
By: by John Durkin.
Series: Report of investigations ;; 8869; Report of investigations (United States. Bureau of Mines) ;; 8869.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1984
Place of publication: [Avondale, Md.]
Language: eng
Number of pages: 18
Subjects: Earth resistance -- Measurement.; Electromagnetic waves -- Transmission -- Measurement.; Coal mines and mining -- United States.
Notes: Bibliography: p. 16.