Results: 1 - 4 of 4
Oct 31, 1993
Open File Report
… … The Jurassic/Cretaceous boundary in a well is … the nature of the Jurassic/Cretaceous boundary and includes … and Dolby, G. (1993): Jurassic/Cretaceous boundary in west central …
Sep 29, 2013
Open File Report
… and the nature of the sub-Cretaceous unconformity. Devonian … prior to the deposition of the Cretaceous McMurray Formation. The … resulting topography of the sub-Cretaceous unconformity surface …
Dec 31, 1957
Bulletin
… Cenomanian substage of the Upper Cretaceous. Lithologic sections are … Fort St. John area. The Lower Cretaceous-Upper Cretaceous boundary occurs at a …
Dec 31, 1981
Earth Sciences Report
… overlie a succession of Upper Cretaceous shales, siltstones, …