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A Study of Coal Availability in the Waynesburg 7.5-minute Quadrangle, Greene and Washington Counties, Pennsylvania

Viktoras W. SkemaJames R. ShaulisRose-Anna BehrLeonard James LentzJohn C. Neubaum

出版	Pennsylvania Geological Survey, 2008
URL	http://books.google.com.hk/books?id=SC8tswEACAAJ&hl=&source=gbs_api

註釋The Waynesburg 7.5-minute quadrangle in Greene and Washington Counties is one of six quadrangles being studied in the Main Bituminous Coal Field of western Pennsylvania to help demonstrate how much coal, on average, remains available for extraction within a mature mining district. Pennsylvanian to Permian-age rocks are exposed in the quadrangle. Coals included in the study are: the Waynesburg and Waynesburg A coals of the Waynesburg Formation that outcrop in the southeast corner of the quadrangle; the Sewickley coal of the Monongahela Group; the Pittsburgh coal, which has been extensively deep mined; the Lower Bakerstown coal of the Conemaugh Group; and the Upper Freeport coal of the Allegheny Formation. The results of the study indicate that of the approximately 1,169 million short tons of bituminous coal originally present, 127 million short tons have been mined out. An additional 145 million short tons of coal can be excluded due to resource restrictions, such as land-use and technological factors, leaving about 897 million short tons, or 77 percent, of the original amount of coal available for mining. This report does not take into account economic or environmental limiting factors.