Results: 1 - 2 of 2
Dec 22, 2005
Earth Sciences Report
… large intervals: 1) the Middle Devonian to Lower Mississippian … Cretaceous succession. Middle Devonian formations progressively … deposits. The uppermost Devonian and Mississippian thicken …
Dec 31, 1976
Economic Geology Report
… with evaporites in the Upper Devonian Beaverhill Lake Formation and Middle Devonian Elk Point Group. The most …