Results: 1 - 6 of 6
Dec 31, 1970
Bulletin
… undisturbed non-marine Cretaceous and Paleocene strata are … the lithology of the uppermost Cretaceous and Paleocene beds … sandstones with time. Most of Upper Cretaceous and Paleocene …
Dec 31, 1979
Open File Report
… … The upper Horseshoe Canyon Formation in … order, these are the lower and upper fine units, consisting mainly … work on the provenance of Upper Cretaceous sands, in indicating …
Apr 20, 2020
Data
… the middle red beds, and the upper Lotsberg halite units, and … marker beds from the lower and upper Lotsberg halite units, 4) the … also includes picks of the sub-Cretaceous unconformity where it …
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
Earth Sciences Report
… variable thickness underlain by Upper Cretaceous strata. The surficial … surface. Maximum relief on the upper surfaces of the map-units …
May 08, 2019
Information Series
… position of some Devonian and Upper Cretaceous units. Also, we chose to …