Results: 1 - 7 of 7
Dec 31, 1968
Earth Sciences Report
… a relatively impermeable marine shale, completely underlies the … beds of argillaceous sandstone, shale, and coal which immediately …
May 07, 2014
Data
… Formation and overlying marine shale of the Pakowki Formation. It …
May 07, 2014
Open File Report
… Formation and overlying marine shale of the Pakowki Formation. It …
Dec 31, 1958
Bulletin
… environment. The Bearpaw marine shale of southern Alberta was …
Feb 28, 2005
Geo-Note
Dec 31, 1961
Earth Sciences Report
Dec 31, 1966
Bulletin
… with the first white-speckled shale 'zone' is used as a datum …