Cigar Lake Mine, Athabasca Basin, Saskatchewan, Canada
|Latitude & Longitude (WGS84):||58° 4' 6'' North , 104° 32' 26'' West|
|Latitude & Longitude (decimal):||58.0686111111, -104.540555556|
The world's second largest uranium deposit, discovered in 1983 and operated by a joint venture of Cameco, COGEMA, TEPCO and Idemitsu. Planned production start in 2007.
The deposit has also been studied as a natural analogue for nuclear waste disposal, with a very concentrated uranium oxide core isolated by a clay mineral halo.
Located about 660 km north of Saskatoon.
26 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Mesoproterozoic - Paleoproterozoic|
1000 - 2500 Ma
|Collins Mbr of Manitou Falls Fm|
Bruneton, P. (1987) Geology of the Cigar Lake Uranium Deposit (Saskatchewan, Canada) in Economic Minerals of Saskatchewan. Saskatchewan Geological Society.
Percival, J.B., Kodama, H. (1989) Sudoite from Cigar Lake, Saskatchewan. The Canadian Mineralogist: 27: 633-641.
Reyx, J. & Ruhlmann, F. (1993): Metallographic study of different mineral assemblages and chemical characteristics of uranium minerals of the Cigar Lake ore deposit (Saskatchewan, Canada). Canadian Journal of Earth Sciences 30(4), 705-719.