Results: 1 - 4 of 4
Dec 31, 1966
Bulletin
… recognized in the Alberta Group (Cretaceous) and equivalent strata … 7.Anomalinoides henbesti; 8.upper pelagic; 9.Trochammina … from south to north, when the upper pelagic microfauna (8) …
Dec 22, 2005
Earth Sciences Report
… wedge. The basin-wide sub-Cretaceous unconformity separates … succession, and 2) the upper Lower to lower Upper Cretaceous succession. Middle …
Dec 31, 1957
Bulletin
… Lower Cenomanian substage of the Upper Cretaceous. Lithologic sections are … John area. The Lower Cretaceous-Upper Cretaceous boundary occurs at …
Dec 31, 1965
Bulletin
… marine transgression in early Cretaceous time. The lower part of … deposits and the middle and upper parts of foreset and topset … impregnated with heavy oil. Post-Cretaceous uplift and subsequent …