Results: 1 - 4 of 4
Aug 15, 2011
Open File Report
… silty mudstone with thin sandstone and siltstone interbeds … (HCS), overlain by a thick sandstone unit showing swaley … seam at the top of the thick sandstone marks the base of the …
Dec 31, 1989
Open File Report
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 …