Results: 1 - 3 of 3
Aug 31, 1977
Open File Report
… Formation (oil impregnated sandstone), the Cretaceous … the Grand Rapids Formation (sandstone) and younger …
Dec 31, 1961
Earth Sciences Report
Dec 31, 1974
Earth Sciences Report
… thick bedded, calcareous, cherty sandstone; grey and green mudstone; …