Geologic factors in predicting coal mine roof-rock stability in the upper Kittanning coalbed, Somerset County, Pa.
By: by A.T. Iannacchione ... [et al.].
Contributors: Iannacchione, Anthony T.
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;; 8575.; Report of investigations (United States. Bureau of Mines) ;
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1981
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 41
Subjects: Coal mines and mining -- Pennsylvania -- Somerset County -- Safety measures.; Mine roof control.; Rock mechanics -- Pennsylvania -- Somerset County.; Geology, Stratigraphic.
Notes: Bibliography: p. 37-40.