Geophysical studies to detect the Acme Underground Coal Mine, Wyoming
By: by C.H. Miller.
Series: U.S. Geological Survey bulletin ;; 1677
Publisher: U.S. G.P.O.; For sale by the Books and Open-File Reports Section, U.S. Geological Survey
Published: 1988
Place of publication: [Washington]; Denver, CO
Language: eng
Number of pages: 27
Subjects: Geophysics -- Wyoming -- Acme Underground Coal Mine -- Methodology.; Acme Underground Coal Mine (Wyo.)
Notes: Bibliography: p. 27.
"Magnetic, electromagnetic, gravimetric, seismic refraction, and precise topographic surveys gave only subtle hints of underground openings, suggesting the need for further research in geophysical techniques."