Results: 1 - 5 of 5
Dec 31, 1957
Bulletin
… one of which is named from the Lower Cenomanian portion of the St. … megafaunal sequences of the Lower Cenomanian substage of the Upper Cretaceous. Lithologic sections are …
Oct 16, 2014
Open File Report
… geological mapping of the Cretaceous strata, specifically the extent and thickness of the lower Clearwater shale unit, that … area highlighting where the lower Clearwater shale unit is thin …
Feb 29, 2008
Geo-Note
… is presented for the uppermost Cretaceous strata of the … appear to be hosted within lower Cenomanian to Campanian … paleoenvironments ranged from lower shoreface below wave base to …
Dec 31, 1977
Earth Sciences Note
… Kootenay Formation (Jurassic - Lower Cretaceous) are unsuitable for …
Dec 31, 1979
Earth Sciences Note
… are the basal clays of the Lower Cretaceous McMurray Formation. Some …