Results: 1 - 5 of 5
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 …
Dec 31, 1973
Earth Sciences Report
… The area is underlain by Upper Cretaceous strata which dip gently …
Feb 28, 1946
Report
… to be underlain by non-marine Upper Cretaceous rocks in which coal …