Results: 1 - 5 of 5
Oct 31, 1971
Economic Geology Report
… and in the Middle Devonian Upper Elk Point Subgroup, Keg River Formation, and Lower Elk Point Subgroup of north-central …
Dec 31, 1957
Bulletin
… margin of error. The top of the Elk Point group was considered for use as a …
Dec 31, 1976
Economic Geology Report
… Formation and Middle Devonian Elk Point Group. The most extensive regions …
Dec 31, 1970
Bulletin
… form part of the Middle Devonian Elk Point Group which contains four mappable …
Dec 31, 1978
Bulletin
… Formations that underlie the Elk Point evaporites, has horizontal … where the overlying Woodbend Group is sufficiently thick. … …