Results: 1 - 2 of 2
Apr 23, 2017
Data
… units evaluated for their shale- and siltstone-hosted … banff formation, bantry shale member, barons sandstone … pekisko formation, poker chip shale, red river formation, …
Dec 31, 1957
Bulletin
… the lower part of the Colorado shale of Alberta and Saskatchewan, and in the Mowry shale of the Black Hills area of …