Geologic investigation of roof and floor strata :
Longwall demonstration, Old Ben Mine no. 24 : final technical report, no. 1 /
by Robert A. Bauer and Philip J. DeMaris.

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Main Author
Bauer, Robert A.
Related Names
DeMaris, Philip J.
Language(s)
English
Published
Champaign, Ill. : Illinois State Geological Survey, 1982.
Subjects
Mine roofs (Stability)
Coal balls.
Coal mines and mining.
Note
"FE/9007-1."
Physical Description
49 p. : ill. ; 28 cm.
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Full view   Contract Reports 1982-2 University of Illinois at Urbana-Champaign