Results: 1 - 3 of 3
Jan 31, 2023
Special Report
… in shallow, polymetallic black shale in NE Alberta. There is no …
Dec 31, 1973
Earth Sciences Report
… gravel, coarse sand, till, clay, shale, fine sand, silt and … erosion; 8)avoiding terracing of shale and mudstone slopes which …
Dec 31, 1974
Bulletin
… sandstone, silty to sandy shale and carbonaceous claystone. …