GREY:RNSFF - Post by User
Comment by
Litexon Aug 24, 2005 7:25pm
166 Views
Post# 9457407
RE: What is going on? - more info
RE: What is going on? - more infoCarswell Uranium Joint Venture Project, Cluff Lake area, Saskatchewan
Regional Geology
The properties are located within the central western part of the Athabasca Basin, a middle Proterozoic succession of red bed sandstone, conglomerate, shale and dolomite assigned to the Athabasca Group. The sub-Athabasca basement rocks in the Carswell Lake area belong mainly to the Achaean and/or Early Proterozoic Firebag Domain and, to a lesser extent, to the Clearwater Domain, a Hudsonian mobile belt.
The Firebag Domain rocks comprise polydeformed and regionally metamorphosed quartzo-feldspathic rocks, mafic granulites, amphibolites, pelitic gneisses and pegmatites. These rocks can be subdivided into mappable units and include distinct cataclastic lithologies. Rocks of the Clearwater Domain include granites and felsic gneisses.
The Carswell Structure is a major circular crustal feature disrupting rocks of the Athabasca Group and its basement in the Cluff Lake-Carswell Lake area. The structure has a diameter of 38Km and consists of a circular domal core of basement rocks surrounded by concentrically distributed stratigraphic units of the Athabasca Group. The joint venture properties are located on the northwest contact between the basement and the overlying sedimentary rocks.
A number of current and past-producing uranium mines occur within the Carswell Structure at Cluff Lake; the larger ones are listed below.
Deposit Tonnes %U3O8 M lb U3O8
Dominique-Peter 1,756,000 0.78 30.20
Claude 583,000 0.42 5.40
Cluff N 505,000 0.40 4.45
Cluff D 128,000 4.02 11.34
Dominique-Janine 95,000 6.84 14.33
The target of the joint venture exploration project is fracture and fault controlled uranium mineralization in altered basement rocks near the unconformity with the overlying Athabasca Group sediments.