Results: 1 - 4 of 4
Apr 13, 2008
Special Report
Dec 31, 1997
Open File Report
… Lithologies represented include: shale (36); siltstone (12); … permeability contrasts such as shale beds; reductants including …
Jan 08, 1973
Open File Report
… building stone, quartzite, and shale - potentially the base for a … to 1956, plus some quarrying of shale and limestone. By far the …
Feb 29, 2008
Special Report
… by at least one contiguous thick shale sequence, the Smoky Group. …