Results: 1 - 7 of 7
May 31, 2005
Geo-Note
… bentonite in Upper Cretaceous strata of north-central … bentonite in Late Cretaceous strata of north-central …
Feb 28, 2007
Earth Sciences Report
… the base of which marks the Cretaceous/Tertiary boundary. … stratigraphic zone between the Cretaceous/Tertiary boundary and …
Mar 26, 2012
Open File Report
… related hydrothermal veins and Cretaceous sedimentary rocks …
Dec 31, 1965
Earth Sciences Report
… central Alberta, mainly in Upper Cretaceous strata. Their wide …
Apr 30, 1993
Open File Report
… and glass, and is common in the Cretaceous and Paleocene sediments …
Dec 31, 1966
Earth Sciences Report
… dipping detrital strata of Late Cretaceous age. In most parts of …
Dec 31, 1957
Earth Sciences Report
… of the area is composed of Upper Cretaceous unconsolidated …