Results: 1 - 4 of 4
Mar 31, 1989
Open File Report
… is to examine Lower Cretaceous coal-bearing rocks in the … will be discussed. Fresh coal outcrops will be observed in … D.E. and Kalkreuth, W.D. (1989): Geology and coal quality of the …
Feb 28, 2007
Earth Sciences Report
… motivated the study of Ardley coal zone characterization and coal-sandstone channels … and development in the Ardley coal zone and the emerging interest …
Dec 31, 1973
Earth Sciences Report
… bentonitic sandstones and coal seams. Yields are fairly high …
Dec 31, 1970
Earth Sciences Report
… and thin bedded sandstones, coal and carbonaceous shales of the …