Results: 1 - 3 of 3
Dec 31, 1990
Open File Report
… … For the last several years, the Coal Geology Section of the Alberta … Survey has been investigating coal quality in regions in the …
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 …