Procedures used for sampling fracture orientations in an underground coal mine

Author:	Bolstad, D. D.
Additional Authors:	Mahtab, M. A., Alldredge, J. R.
Year:	1973
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of Interior, Bureau of Mines,
SUDOC:	I 28.23:7763
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	7763
Subjects:	Coal mines and mining--Research
	Rock mechanics--Research
	Fracture mechanics--Research
Link:	https://hdl.handle.net/2027/mdp.39015078521096