EXTECH IV ATHABASCA URANIUM DEPOSIT DATABASE
Geological Survey of Canada, Saskatchewan Industry and Resources, and Alberta Geological Survey


DEPNO COUNTRY LOCATION ALLNAMES COMMODITIES
40033 Canada (Saskatchewan) 58.22.07 N -- 109.32.34 W DJ; D-J; Dominique-Janine; DJU; Dominique-Janine Underground Mine U; Gn; Mo; Cf; Gf; Py

Database name: Uranium Deposits, Athabasca Basin
Custodial agency: Geological Survey of Canada
Compilers: Sunil S. Gandhi
Release date: 2007-03-02
   
Deposit name(s): DJ (occurrence name); D-J (occurrence name); Dominique-Janine (occurrence name); DJU (mine name); Dominique-Janine Underground Mine (mine name)
Political location(s): Canada; Province or state: Saskatchewan; Nearest community: La Ronge (555 km NW)
NTS map data: 074K05 (Cluff Lake)
Deposit clan (type): Unconformity-associated
Deposit (sub) types: Unconformity-associated - Proterozoic - fracture-bound; pitchblende veins along N-S faults dipping steeply to the west and along two sets of cross-cutting fractures, in south part of the D-J fault zone 800 m long and 40 to 60 m wide; sandstone at south end; Reference: Koning, E., 2006: The Cluff Lake Deposits, West Athabasca Basin, Saskatchewan, Canada; In Field Trip 3: Cluff Lake and Shea Creek Deposits; September 13-14; 2006 CIM Field Conference; Uranium: Athabasca Deposits and Analogues, Edited by Koning, E.; Robbins, J.; Carroll, J., Field Trip Guidebook, Canadian Institute of Mining and Metallurgy, CIM Geogolical Society, Saskatoon Section, 48 p., p. 1 - 32
Deposit status: past producer; Size category: medium; Status comments: mined underground during 1997-2000; stopes followed the north-trending veins; access by a decline on the west side
Geologic province: Churchill - Rae Craton
Geologic subprovince: Taltson-Thelon Magmatic Zone
Geologic district: Western Athabasca Basin / Carswell Impact Crater
Deposit object located: mine site
Commodities: U; Gn; Mo; Cf; Gf; Py
Tectonic setting: continental marginal deformation zone-folding and thrusting; transpressive; Formal name: Taltson-Thelon Magmatic Zone (host rocks)
Coincident features: fracture(s) (mineralization in subvertical N-S fractures in the mylonite zone that dips gently to the west; setting similar to that of the Dominique-Peter deposit); Coincident feature name: Earl River-Peter River gneiss transition zone
Regional tectonic structure: domal structure (core of Earl River Gneiss, 500-700 m wide and trending NNW, is flanked by structurally overlying Peter River Gneiss; deposit on the west side of dome) Tectonic structure name: Earl River Gneiss Dome
mylonitic zone (mylonite zone occurs on both sides of the Earl River Gneiss dome; hosts Dominique-Peter deposit on east side and the Dominique-Janine on the west side) Tectonic structure name: Earl River-Peter River gneiss boundary zone
Host rocks: (1) metamorphic; metasedimentary schist
Deposit shape: zone of elongate pods
Deposit dimensions:length: 800 metre
width: 50 metre
height: 100 metre
Qualified comments: (Applies to: discovery and development) A study of the Claude mine adit in 1979 led to exploration along zone between Earl River and Peter River gneisses, and to discovery of Dominique-Peter deposit in 1980 and of Dominique-Janine deposit in 1984. The Dominique-Janine North open pit was mined during 1989-1991. Dominique-Janine South open pit operated during 1994-1997. Dominique-Janine South Extension underground mine operated from 1995 to 2002. Dominique-Janine South (or D-J Extension or DJX) Open Pit Production: 1195 t U from 366057 t of ore; Underground Production: 1388 t U from 445348 t ore; miscellaneous pods: 4.617 t U from 604 t ore. In 1987, a gold circuit was added to the mill. This circuit recovered a total of 8000 oz of gold and 800 oz of silver.

(Applies to: production) Two mines: Dominique-Janine South, 100 m from Cluff Lake shore, produced 950000 t of ore averaging 5.8 % U; Dominique-Janine North, located 1100 m to its north, produced 230000 t averaging 3.8 % U.
Links to other databases: SMDI; Key value: 2153
References:
Bell, K., 1985
Geochronology of the Carswell Area, Northern Saskatchewan
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 33 - 46

Bell, K.; Cacciotti, A. D.; Schnessl, J. H., 1985
Petrography and Geochemistry of the Earl River Complex, Carswell Structure, Saskatchewan - A Possible Proterozoic Komatiitic Succession
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 71 - 80

Bellon, H.; Devilliers, C.; Hagemann, R.; Touray, J. C., 1976
Dater les Minéralisations
Mémoir Hors Série de la Société Géologique de France, p. 265 - 268

Bennett, R. W., 2002
Geological Atlas of Saskatchewan, Version 5 (2002)
Government of Saskatchewan, CD-ROM

Clauer, N.; Ey, F.; Gauthier-Lafaye, F., 1985
K-Ar Dating of Different Rock Types from the Cluff Lake Uranium Ore Deposits (Saskatchewan-Canada)
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 47 - 53

Cumming, G. L.; Kristic, D.; Wilson, J. A., 1987
Age of the Athabsca Group, Northern Alberta
In Program with Abstracts: Joint Annual Meeting, Geological Association of Canada-Mineralogical Association of Canada, Edited by Anonymous, Program with Abstracts, Joint Annual Meeting, Geological Association of Canada and Mineralogical Association of Canada, Geological Association of Canada, 12, p. 35 - 35

Currie, K. L., 1969
Geological Notes on the Carswell Circular Structure, Saskatchewan (74K)
Paper, Geological Survey of Canada, Publication code 67-32, 69 p..

Dahlkamp, F. J., 1993
Uranium Ore Deposits
Springer-Verlag, Berlin, Germany and New York, U.S.A., 460 p.

Gancarz, A. J., 1979
Chronology of the Cluff Lake Area Uranium Deposit, Saskatchewan, Canada (Extended Abstract)
In Uranium in Pine Creek Geosyncline: Proceedings of Symposium, Sydney, 1979, Edited by Ferguson, J.; Goleby, A. B., Proceedings of International Symposium, Interantional Atomic Energy Agency, Vienna, Interantional Atomic Energy Agency, Vienna, Austria, STI/PUB555, 760 p., p. 91 - 94

Harper, C. T., 1978
Geology of the Cluff Lake Uranium Deposits
Bulletin of the Canadian Institute of Mining and Metallurgy, Volume 71, p. 68 - 78

Harper, C. T., 1983
The Geology and Uranium Deposits of the Central Part of the Carswell Structure, Northern Saskatchewan, Canada
Ph. D. Thesis, Colorado School of Mines, Golden, Colorado, U.S.A., 337 p..

Hendry, H. E.; Wheatly, K. L., 1985
The Carswell Formation, Northern Saskatchewan: Stratigraphy, Sedimentology, and Structure
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 87 - 103

Hoeve, J.; Quirt, D.; Alonso, D., 1985
Clay Mineral stratigraphy of the Athabasca Group: Correlation Inside and Outside the Carswell Structure
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 19 - 31

Koning, E., 2006
The Cluff Lake Deposits, West Athabasca Basin, Saskatchewan, Canada
In Field Trip 3: Cluff Lake and Shea Creek Deposits; September 13-14; 2006 CIM Field Conference; Uranium: Athabasca Deposits and Analogues, Edited by Koning, E.; Robbins, J.; Carroll, J., Field Trip Guidebook, Canadian Institute of Mining and Metallurgy, CIM Geogolical Society, Saskatoon Section, 48 p., p. 1 - 32

Lainé, R., 1985
Conclusion: the Carswell Uranium Deposits - An Example of Not So Unique Unconformity-Related Uranium Mineralization
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 225 - 230

Lainé, R. T., 1986
Uranium Deposits of the Carswell Structure
Chapter 4, Section Saskatchewan Unconformity-associated and Sedimentary-hosted Deposits of Helikian Age, In Uranium Deposits of Canada, Edited by Evans, E. L., Special Volume, The Canadian Institute of Mining and Metallurgy, The Canadian Institute of Mining and Metallurgy, 33, 323 p., p. 155 - 169

Landais, P.; Dereppe, J. M., 1985
A Chemical Study of the Carbonaceous Material from the Carswell Structure
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 165 - 174

Pacquet, A.; McNamara, S., 1985
The Study of the Basal Athabasca Succession in the D, E, L, F and S Areas of the Carswell Structure
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 81 - 86

Pagel, M.; Wheatly, K.; Ey, F., 1985
The Origin of the Carswell Circular Structure
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 213 - 223

Pagel, M.; Svab, M., 1985
Petrographic and Geochemical Variations within the Carswell Structure Metamorphic Core and their Implications with Repsect to Uranium Mineralization
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 55 - 70

Pagel, M.; Ruhlmann, F., 1985
Chemistry of Uranium Minerals in Deposits and Showings of the Carswell Structure (Saskatchewan-Canada)
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 153 - 164

Powell, B., 1985
Case Histories of the Radon Tube Sampler in the Carswell Structure
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 189 - 199

Powell, B.; Koning, E.; Lainé, R., 1985
Gephysical Mapping of Gneiss Domes in the Carswell Structure and their Relationship to Uranium Mineralization
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 201 - 212

Prasad, N., 2002
Uranium File: Canmindex
Geological Survey of Canada, Canadian Mineral Occurrence Index (Canmindex), CD-ROM

Ramaekers, P., 1981
Hudsonian and Helikian Basins of the Athabasca Region, Northern Saskatchewan
In Proterozoic Basins of Canada, Edited by Campbell, F. H. A., Paper, Geological Survey of Canada, Geological Survey of Canada, 81-10, 444 p., p. 219 - 233

Ramaekers, P.; Yeo, G. M.; Jefferson, C. W., 2001
Preliminary Overview of Regional Stratigraphy in the late Paleoproterozoic Athabasca Basin, Saskatchewan and Alberta.
In Summary of Investigations 2001, Volume 2, Saskatchewan Geological Survey; EXTEC IV Athabasca Uranium Multidisciplinary Study, Edited by Anonymous, Miscellaneous Reports, Saskatchewan Geological Survey, Saskatchewan Department of Energy and Mines, 2001- 4.2b, 1 disks, p. 240 - 251

Ruhlmann, F., 1985
Mineralogy and Metallogeny of Uraniferous Occurrences in the Carswell Structure
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 105 - 120

Saskatchewan Geological Survey, 2003
Geology, and Mineral and Petroleum Resources of Saskatchewan
Miscellaneous Report, Saskatchewan Industry and Resources, Publication code 2003-7, 173 p., 4 maps.

Saskatchewan Industry and Resources, 2001
Saskatchewan Mineral Deposits Index
Government of Saskatchewan, Geological Atlas of Saskatchewan, Internet

Tona, F.; Alonso, D.; Svab, M., 1985
Geology and Mineralization in the Carswell Structure - A General Approach
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 1 - 18

Wilson, J. S., 1985
Geochemistry and Glacial Geology - Application to Exploration in the Carswell Structure
In The Carswell Structure Uranium Deposits, Saskatchewan, Edited by Lainé, R.; Alonso, D.; Svab, M., Special Paper, Geological Association of Canada, Geological Association of Canada, 29, 230 p., p. 175 - 188

Wilson, N. S. F.; Stasiuk, L. D.; Fowler, M. G., 2002
Post-mineralization Origin of Organic Matter in Athabasca Unconformity Deposits, Saskatchewan
D, Section EXTECH IV Athabasca Uranium, In Summary of Investigations 2002, Volume 2, Saskatchewan Geological Survey (CD-ROM), Edited by Anonymous, Miscellaneous Report, Saskatchewan Geological Survey, Saskatchewan Industry and Resources, 2002-4.2, 371 p., 1 disks, p. 219 - 224

Wilson, N. S. F.; Stasiuk, L. D.; Fowler, M. G., 2003
Post-mineralization Origin of Organic Matter in Athabasca Unconformity Uranium Deposits, Saskatchewan, Canada
In Proceedings of an International Conference on Uranium Geochemistry 2003, Nancy - France, April 13 - 16, 2003: Extended Abstracts (Recueil des Conferences Colloque International Géochimie de l'Uranium 2003), Edited by Cuney, M., Proceedings of International Conference (Extended Abstracts), Unité Mixte de Recherche - Géologie et Gestion des Ressources Minérales et Enérgetiques, 7566 Nancy, France, 409 p., p. 383 - 384

Production data: Report period: from 1995 until 2000; 286,106 metric ton ore; Provisional entry?: yes; Yearly or summary?: S
Grade-commodity information:U: 0.67 percent
Reference: Koning, E., 2006: The Cluff Lake Deposits, West Athabasca Basin, Saskatchewan, Canada; In Field Trip 3: Cluff Lake and Shea Creek Deposits; September 13-14; 2006 CIM Field Conference; Uranium: Athabasca Deposits and Analogues, Edited by Koning, E.; Robbins, J.; Carroll, J., Field Trip Guidebook, Canadian Institute of Mining and Metallurgy, CIM Geogolical Society, Saskatoon Section, 48 p., p. 1 - 32
Percent weights allocated to deposit: 100.0%
Associated mine(s): DJN Open Pit / Dominique-Janine North Uranium Mine (40017), DJX Open Pit / Dominique-Janine Extension Pit (40018)
Associated group(s): Cluff Lake deposits (40002)

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