Results: 21 - 30 of 69
Jun 30, 2003
Geo-Note
… karst features indicating near-surface carbonate rocks. The … slip movements. This joint surface trend is on strike with the … at the past producing Pine Point mining district in the N.W.T. The …
Dec 31, 1978
Bulletin
… fault are approximately at land surface, but decline eastward to … of 10-6 to 10-4 cm/sec. Surface mining ventures will generally …
Jun 30, 2001
Special Report
Mar 17, 2019
Data
Dec 31, 1975
Bulletin
… short residence time below the surface. Response to changes in … disturbed. Logging and strip mining are not recommended in these …
Dec 31, 1975
Bulletin
… be left standing during the mining phase. Geological …
Oct 31, 2003
Special Report
… As well, a search of ancient mining and exploration techniques …
Aug 31, 1988
Open File Report
… by tectonic shearing. For mining purposes, the 2 m sampling …
Dec 31, 1988
Earth Sciences Report
… by tectonic shearing. For mining purposes, the 2 m sampling …
Dec 31, 1982
Information Series
… source of liquid fuels. Surface mineable coal in the Plains …