Results: 1 - 4 of 4
Dec 31, 1989
Open File Report
Sep 11, 2012
Data
… Formation by the first thick sandstone above the uppermost coal …
Apr 29, 1979
Open File Report
… aquifer such as a bentonitic sandstone, and two in a typical …
Dec 31, 1960
Earth Sciences Report
… shale and very fine grained sandstone, the shale being by far …