Effects of abandoned multiple seam workings on a longwall in Virginia
By: by Gregory J. Chekan, Rudy J. Matetic, and David L. Dwyer.
Contributors: Matetic, Rudy J.; Dwyer, David L.
Series: Report of investigations ;; 9247; Report of investigations (United States. Bureau of Mines) ;; 9247.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1989
Place of publication: Pgh. [Pittsburgh], PA
Language: eng
Number of pages: 15
Subjects: Mine subsidences -- Virginia -- Dickenson County.; Longwall mining -- Virginia -- Dickenson County.
Notes: Bibliography: p. 14.