Results: 1 - 10 of 10
Sep 26, 2017
Data
… analyses of detrital zircon from Lower Jurassic to Lower Cretaceous strata of the southern …
Sep 26, 2017
Open File Report
… zircon geochronology from Lower Jurassic to Lower Cretaceous strata of the …
Dec 31, 1957
Bulletin
… one of which is named from the Lower Cenomanian portion of the St. … megafaunal sequences of the Lower Cenomanian substage of the Upper Cretaceous. Lithologic sections are …
May 14, 2014
Poster
… … The sub-Cretaceous unconformity is an … Devonian to the Upper Jurassic/Lower Cretaceous (Nikanassin Formation) …
Dec 31, 1966
Bulletin
… recognized in the Alberta Group (Cretaceous) and equivalent strata … 2.Verneuilinoides kansasensis; 3.lower pelagic and 4.Pseudoclavulina … (1) and (2). The Late Cretaceous sea persisted longer in …
Dec 31, 1959
Bulletin
… of the Kaskapau shale and the lower part of the Puskwaskau shale … J.H. … Wall, J.H. (1960): Upper Cretaceous Foraminifera from the … … BUL 006 … Bulletin 006 … Upper Cretaceous Foraminifera from the …
Apr 20, 2020
Data
… the basal red beds, the lower Lotsberg halite, the middle … L2, and L3 marker beds from the lower and upper Lotsberg halite … also includes picks of the sub-Cretaceous unconformity where it …
Dec 31, 1953
Report
… area of western Canada has a Lower Cretaceous marine succession of … in western Canada until the Lower Turanian stage of the Upper …
Dec 31, 1955
Report
… the Clearwater formation in the lower Athabasca River area of … dated Middle Albian in age (late Lower Cretaceous). Environment of …
Dec 31, 1954
Report
… of Foraminifera from the lower and central part of the Upper Cretaceous Kaskapau formation from … of the upper Cenomanian and lower Turonian stages. The late …