Geotechnology in slate quarry operations

Author:	Moebs, Noel N.
Additional Authors:	Marshall, Thomas E., Sames, Gary P.
Year:	1985
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:9009
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	9009
Subjects:	Quarries and quarrying--Pennsylvania--Pen Argyl Region
	Slate--Pennsylvania--Pen Argyl Region
	Ground control (Mining)--Pennsylvania--Pen Argyl Region
Link:	https://hdl.handle.net/2027/mdp.39015078489187