Results: 1 - 2 of 2
Dec 31, 1957
Bulletin
… Lower Cenomanian substage of the Upper Cretaceous. Lithologic sections are … John area. The Lower Cretaceous-Upper Cretaceous boundary occurs at …
Nov 28, 2011
Open File Report
… mafic sills and dikes, and the Cretaceous alkaline sills and dikes … lead-zinc prospect within the Upper Devonian Palliser Formation …