Results: 1 - 2 of 2
Dec 31, 1976
Open File Report
… of exposed sandstone and shale. The climate is continental …
Dec 31, 1966
Earth Sciences Report
… augmented by data from selected oil well electric logs. In central … and consists of 4 units: a coaly shale; an upper coal seam 4 to 6 … of grey, green and carbonaceous shale and siltstone, with …