Results: 1 - 5 of 5
Aug 31, 1983
Open File Report
… framework of Lower Cretaceous coal-bearing rocks in the Grande … framework of Lower Cretaceous coal-bearing rocks in the Grande … Framework of Lower Cretaceous Coal-Bearing Rocks in the Grande …
Jun 30, 1995
Open File Report
… into the atmosphere. A number of coal-based thermal power plants …
Dec 31, 1968
Earth Sciences Report
… sandstone, shale, and coal which immediately overlies the … of the high clay content but the coal beds are sufficiently …
Feb 28, 1993
Open File Report
… development as a result of coal mining, oil and natural gas …
Dec 31, 1977
Earth Sciences Report
… in thick sandstone units and coal beds. Yields between 25 and …