Results: 1 - 3 of 3
Feb 07, 2018
Report
… and form the subcrop at the sub-Cretaceous unconformity surface. … of the lower part of the Lower Cretaceous Mannville Group … in the study area is the sub-Cretaceous unconformity; an angular …
Dec 31, 1999
Geo-Note
… exist, at least locally, in the Cretaceous, Jurassic and Devonian …
Dec 31, 1961
Earth Sciences Report
… estimates indicate that the Cretaceous and Tertiary geologic …