Results: 1 - 4 of 4
Nov 18, 2008
Data
… analyses of 57 mudstone, 29 shale, 13 ironstone, 6 pyrite …
Dec 31, 1966
Bulletin
… sandstone and dark silty shale, correlative with quartzose sandstone and shale in the lower part of the … siltstone, and varicoloured shale, with thin tuff and bentonite …
Apr 13, 2008
Special Report
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 …