Results: 1 - 6 of 6
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, 1978
Bulletin
… km (25,970 sq. mi). Holocene and Cretaceous clastic rocks … are particularly notable at the Cretaceous-Devonian contact. West … unit, consisting of Holocene and Cretaceous sediments, is …
Dec 31, 1971
Earth Sciences Report
… north, is underlain by the Upper Cretaceous shaly, marine Lea Park … by thin basal beds of the Upper cretaceous nonmarine, clastic, …
Dec 31, 1955
Report
… Albian substage of the Lower Cretaceous. The calcareous …
Jul 31, 1990
Open File Report
… of 1:50,000. Some 4000 meters of Cretaceous and Tertiary strata are …
Dec 31, 1988
Earth Sciences Report
… Seam forms part of the Lower Cretaceous Gates Formation and has …