A portable vacuum hammer seismic source for use in tunnel environments / by R.D. Carroll and J.E. Magner ; prepared in cooperation with the Nevada Operations Office, Defense Nuclear Agency and the Nevada Operations Office, U.S. Department of Energy.

Bibliographic Details
Uniform Title:	U.S. Geological Survey open-file report ; 93-187.
Main Author:	Carroll, R. D. (Roderick D.), 1930-
Corporate Authors:	United States. Defense Nuclear Agency United States. Department of Energy. Nevada Operations Office Geological Survey (U.S.)
Other Authors:	Magner, J. E.
Language:	English
Published:	Denver, Colo. : U.S. Department of the Interior, Geological Survey : Books and Open-File Reports Section, Branch of Distribution, 1993.
Series:	U.S. Geological Survey open-file report ; 93-187.
Subjects:	Seismic refraction method. Seismic reflection method.
Physical Description:	ii, 18, A17 pages : illustrations ; 28 cm.
Format:	Government Document Microfilm Book

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