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


DEPNO COUNTRY LOCATION ALLNAMES COMMODITIES
40012 Canada (Saskatchewan) 58.15.47 N -- 103.50.51 W McClean Lake North Uranium Deposits; McClean Lake Project; Mallen Lake Uranium Deposit; Candy Lake U Zone U; Ni; Co; As

Database name: Uranium Deposits, Athabasca Basin
Custodial agency: Geological Survey of Canada
Compilers: Sunil S. Gandhi
Release date: 2007-03-02
   
Deposit name(s): McClean Lake North Uranium Deposits (occurrence name); McClean Lake Project (mine name); Mallen Lake Uranium Deposit (occurrence name); Candy Lake U Zone (occurrence name)
Political location(s): Canada; Province or state: Saskatchewan; Nearest community: Rabbit Lake mine-mill complex (11 km WNW)
NTS map data: 064L05 (Cunning Bay)
Deposit clan (type): Unconformity-associated
Deposit (sub) types: Unconformity-associated - Proterozoic - clay-bound; nine podiform deposits occur along 1 km strike of a graphitic unit that curves around north end of McClean Lake Archean antiform; polymetallic mineralization straddles the sub-Athabasca unconformity; Reference: Wheatley, K.; Williamson, A.; Tourigny, G.; Wilson, S.; Breton, G., 2006: Geology of the McClean Lake/Sue Deposits; C, Section Athabasca Basin Uranium Deposits, In Abstracts Volume for the 2006 CIM Uranium Field Conference, September 11-12, Saskatoon; Uranium: Athabasca Deposits & Analogues, Edited by Quirt, D., Abstracts Volume, Canadian Institute of Mining and Metallurgy, Saskatoon Section, CIM Geological Society, 164 p., p. 1 - 16
Deposit status: producer; Size category: medium; Status comments: deposit discovered in 1979; comprises 4 elongate ore 'pods' along a strike zone of 750 m, excluding the Candy Lake 'pod' to the east; total ore in 4 pods: 192.8 kt averaging 1.976 % U, viz., 3810 t U
Geologic province: Churchill - Hearne Craton
Geologic subprovince: Wollaston Domain (Fold Belt)
Geologic district: Eastern Athabasca Basin
Deposit object located: drillhole
Commodities: U; Ni; Co; As
Mineralization styles: massive deposition above unconformi; massive deposition below unconformi; podiform; mineralization in paleoregolith; fracture-filling
Geological ages: Early Mesoproterozoic - Late Mesoproterozoic (mineralization)
Late Paleoproterozoic - Middle Mesoproterozoic (host rocks)
Tectonic setting: continental marginal deformation zone-basement reactivation; convergent; Formal name: Wollaston Domain of Trans-Hudson Orogen (host rocks)
continental basin-intracratonic; stable; Formal name: Athabasca Basin (host rocks)
continental basin-unconformity; multiple regimes; Formal name: sub-Athabasca Group unconformity (mineralization)
Coincident features: unconformity (mineralization straddles the unconformity; nearly 60 % of ore is above the unconformity); Coincident feature name: Sub-Athabasca unconformity
lithology (the main pod 1, closely spaced pods 2, 3 and 4 to W, and Cindy Lake pod to the E localized along the horizon); Coincident feature name: graphitic schist
fault zone (shearing and thrust faulting along graphitic horizon, which trends NNE and dips 40 to 85° to S); Coincident feature name: Basement faults with post-Athabasca reactivation
basement ridge (mineralization localized along a ridge up to 7 m high, formed by post-Athabasca thrusting); Coincident feature name: Basement fault ridge
Regional tectonic structure: fold belt (NE-trending regional thermo-tectonic zone; near boundary with Archean Mudjatik Domain to the NW; core of the Trans-Hudson orogen to the SE of fold be) Tectonic structure name: Wollaston fold belt
synform in host metasedimentary sequence (McClean North, South and Sue deposits located at nose of the SW plunging synform) Tectonic structure name: Telegraph Lake synformal pericline
ductile and brittle-ductile fault zone (localized at differential competency boundary between graphitic metapelite and meta-arkose) Tectonic structure name: bedding parallel shears and fractures
Host rocks: (1) metamorphic; graphitic schist (host horizon with graphite-rich beds); Depositional setting: platform-shelf; Metamorphic grade: amphibolite - upper
External host rock forms:thin to thick bedded
Host rock protoliths:carbonaceous pelite (graphite ± pyrite in argillaceous material; interbedded with semipelitic and arkosic strata); Host rock protolith name: part of unit of Wollaston Supergroup
Internal host rock structures:schistose and brecciated
Individual lithologies:graphitic metapelite (mapped as metasemipelite; forms the 2.4 km long McClean North EM conductor zone )
Host rock stratigraphy:Unit of Wollaston Supergroup Group

(2) metamorphic; paragneiss (migmatized metasemipelite and meta-arkose); Depositional setting: platform-shelf; Metamorphic grade: amphibolite - upper
External host rock forms:thin to thick bedded
Host rock protoliths:semipelite and arkose (interbedded pelitic and arkosic beds; includes the host graphitic horizon); Host rock protolith name: unit of Wollaston Supergroup
shale
arkose-siltstone-mudstone
Internal host rock structures:well foliated to gneissic and schistose
Individual lithologies:metasemipelite (forms the 2.4 km long McClean North EM conductor zone)
meta-arkose (medium grained; poorly foliated; pink to pale grey)
Host rock stratigraphy:Unit of Wollaston Supergroup Group

(3) surficial; laterite (weathered basement; profile 7 to 222 m deep); Host series: paleoregolith; Depositional setting: subaerial; Metamorphic grade: unmetamorphosed
External host rock forms:paleoregolith
lateritic profile
Host rock protoliths:graphitic schist (mineralized horizon, marked by graphite±pyrite & faults, weathered to >100 m (max. 222 m)); Host rock protolith name: part of unit of Wollaston Supergroup
metasedimentary schist and gneiss (lateritic profile 30 to 45 m thick over metapelitic and metasemipelitic rocks); Host rock protolith name: unit of Wollaston Supergroup
meta-arkose (average regolith thickness over meta-arkose is 21 m); Host rock protolith name: unit of Wollaston Supergroup
Internal host rock structures:lateritic zonation
lateritic zonation
lateritic zonation
Individual lithologies:laterite (upper oxidized hematitic red to purple zone, capped by thin bleached layer, and grading below into reduced greeish chloritic-illite bearing zone )
laterite (upper oxidized hematitic red to purple zone, capped by thin bleached layer, and grading below into reduced greeish chloritic-illite bearing zone )
laterite (upper oxidized hematitic red to purple zone, capped by thin bleached layer, and grading below into reduced greeish chloritic-illite bearing zone )

(4) sedimentary; sandstone-conglomerate (host of upper part of ore pods); Depositional setting: fluviatile; Metamorphic grade: unmetamorphosed
External host rock forms:thin to thick bedded, flat lying
Host rock protoliths:quartz arenites (basal gritty sandstone 30 m thick, overlain by 3 to 8 m thick polymictic conglomerate and 122 m thick medium grained sandstone); Host rock protolith name: Manitou Falls B and C Formations
Internal host rock structures:illite-kaolinite matrix 1 to 5 %
Individual lithologies:quartz arenite (basal Athabasca conglomerate, commonly present elsewhere, does not occur at this deposit)
Related igneous rocks: (1) intrusive; gabbro suite (syn- or post-mineralization); Initials: Mackenzie diabase dyke; Magma series: calc-alkaline
Individual lithologies:diabase (dyke north of the deposit; part of the NW-trending, 1270 Ma old Mackenzie dyke swarm)
Country rocks: (1) granitic gneisses; (Torwalt dome 1.5 km NE of deposit); Country rock name: reactivated Archean gneiss dome; Metamorphic grade: amphibolite (upper) - granulite
Country rock protoliths:granitic plutons (distribution of granitic domes under the Athabasca Group incompletely known); Country rock protolith name: Archean basement granite
Individual lithologies:granitic gneiss (reactivation of granite during Hudsonian thermo-tectonic event)

(2) metasedimentary rocks; (sub-Athabasca Group host rocks ); Country rock name: Wollaston Group; Metamorphic grade: amphibolite (upper) - granulite
Country rock protoliths:platform-shelf sediments (deposited during the Late Paleoproterozoic on Archean Hearne craton); Country rock protolith name: Wollaston Group
Individual lithologies:paragneisses and paraschists (deformed and metamorphosed during late Paleopropterozoic Hudsonian orogeny)

(3) paleo-regolith; (lateritic weathering); Country rock name: sub-Athabasca regolith; Metamorphic grade: unmetamorphosed
Country rock protoliths:metasedimentary and granitic rocks (profile more than 50 m thick; deeper along faults; weathering effects vary on different rocks); Country rock protolith name: sub-Athabasca basement
Individual lithologies:Lateritic (upper oxidized hematitic red to purple zone; grading below into reduced greeish chloritic-illite bearing zone)

(4) conglomerate-sandstone; (flat-lying, undeformed); Country rock name: Athabasca Group; Metamorphic grade: unmetamorphosed
Country rock protoliths:quartz arenites (mostly fluvial siliclastic sediments deposited in intractonic basin under stable conditions); Country rock protolith name: Athabasca Group
Individual lithologies:conglomerate-sandstone-siltstone (sandstone predominant; clay matrix 1 to 5 %; Athabasca Group 2 to 5 km thick)
Metallogenic signatures: U
U-Ni-Co-As
Alteration signatures: illite alteration: illite, massive to disseminated; What was altered: feldspar, quartz in host rocks and paleoregolith
hematization: hematite, limonite (goethite); What was altered: mafic silicates and magnetite
chlorite alteration: green clay-chlorite; What was altered: mafic silicates
desilication: removal of quartz by mineralizing solution; What was altered: quartz in host rocks
graphite removal: partial or complete depletion of graphite; What was altered: graphitic schist beneath unconformity
secondary coarse quartz: subhedral to euhedral quartz crystals; What was altered: fillings in tensional fractures and cavities
Mineralogy: (alteration - undifferentiated / mineralization zone): siderite, chlorite - Fe-rich, kaolinite, illite
(alteration - undifferentiated / wall rocks): sudoite
(alteration - undifferentiated / mineralization zone): hematite
(alteration - undifferentiated / host rocks): goethite
(mineralization / mineralization zone): uraninite, pitchblende - massive, coffinite, pararammelsbergite, niccolite, ilsemannite, pyrite, bravoite, chalcopyrite, sphalerite, gersdorffite, skutterudite (?), safflorite
Radiometric ages: Object dated: Alteration Signature(1); Age - Ma: 1,300; +0; -130; Dating method: Ar-Ar; Concentrate: illite; Source rock: mineralization; Event dated: alteration (hypogene); Interpretive comment: Age range 1300 to 1170 Ma; illite from alteration halo of high grade mineralization; Reference: Wallis, R. H.; Saracoglu, N.; Brummer, J. J.; Golightly, J. P., 1986: The Geology of the McClean Uranium Deposits, Northern Saskatchewan; 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. 193 - 217

Object dated: Host Rocks(3); Age - Ma: 1,773; +71; -71; Dating method: Rb-Sr; Concentrate: whole rock; Source rock: paragneiss and granitic gneiss; Event dated: metamorphism; Interpretive comment: 5 out of 6 samples fit a line indicating Hudsonian metamorphism; samples from 3 drill holes; Reference: Wallis, R. H.; Saracoglu, N.; Brummer, J. J.; Golightly, J. P., 1986: The Geology of the McClean Uranium Deposits, Northern Saskatchewan; 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. 193 - 217

Object dated: Host Rocks(3); Age - Ma: 1,523; +51; -51; Dating method: K-Ar; Concentrate: biotite; Source rock: arkosic metasemipelite; Event dated: paleo-weathering; Interpretive comment: core sample from drill hole 3023; weakly altered; age indicative of sub-Athabasca paleo-weathering ; Reference: Wallis, R. H.; Saracoglu, N.; Brummer, J. J.; Golightly, J. P., 1986: The Geology of the McClean Uranium Deposits, Northern Saskatchewan; 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. 193 - 217

Object dated: Host Rocks(3); Age - Ma: 1,487; +49; -49; Dating method: K-Ar; Concentrate: biotite; Source rock: biotite-garnet meta-arkose; Event dated: paleo-weathering; Interpretive comment: sample from drill hole 3017; moderately altered; age indicative of sub-Athabasca paleo-weathering ; Reference: Wallis, R. H.; Saracoglu, N.; Brummer, J. J.; Golightly, J. P., 1986: The Geology of the McClean Uranium Deposits, Northern Saskatchewan; 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. 193 - 217

Object dated: Host Rocks(3); Age - Ma: 1,272; +42; -42; Dating method: K-Ar; Concentrate: biotite; Source rock: granitic gneiss; Event dated: mineralization; Interpretive comment: altered drill core sample from hole 1054; age close to the Ar-Ar age for mineralization from illite; Reference: Wallis, R. H.; Saracoglu, N.; Brummer, J. J.; Golightly, J. P., 1986: The Geology of the McClean Uranium Deposits, Northern Saskatchewan; 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. 193 - 217
Deposit shape: zone of elongate pods
Deposit dimensions:length: 750 metre
width: 45 metre
height: 20 metre
Qualified comments: (Applies to: discovery and development) Initial exploration was done by Gulf Minerals Canada Ltd. during 1968-1974 and included airborne radiometric survey and some ground follow-up. The company let its exploration permit for the area lapse in 1974. During the same year Canadian Occidental Petroleum Ltd. (CanOxy) carried out an airborne reconnaissance survey over the area, and staked the Wally property, which was later divided into the McClean Lake and Wolly properties. In 1977 airborne magnetic and EM surveys were flown over the property. The first significant discovery was of the Tent Lake zone in 1978 , which led to emphasis on the geophysical methods over the geochemical and radiometric methods. Exploration drilling was guided mainly by the ground electromagnetic survey that located the graphitic zones in the basement 150 m below the Athabasca sandstone. First mineralization at McClean Lake was intersected in drill hole 102 in January of 1979. Furhter drilling during 1979-'81 led to the discovery of sevral closely spaced pods along a strike zone of 1200 m, which is gently covex toward the north. In 1985 Minatco entered into the joint venture with CanOxy and Inco to become the operator of the project. Further exploration during 1987 and 1988 led to the discovery of Pod 5 at McLean Lake North and the highly productive Sue Trend to the east. In 1990 the CanOxy-Inco JV sold out to Minatco, which was subsequently acquired by Cogema Resources Inc. (later changed name to Areva Resources Canada Ltd.). During 1992, Denison Mines Ltd. and OURD Canada Ltd. acquired 22.5 % and 7.5 % interest, respectively, in the McLean Lake Project. Construction of the McLean Lake facility began in 1995.

(Applies to: reserve/resource descriptions) Combined resources of McLean North and South deposits reported by Wallis et al., (1985): 0.351 Mt averaging 1.51 % U, viz., 5297 t U; at cutoff grade of 2.06 % U the resources are 4731 t U in 229.3 kt.

(Applies to: mineralization) There are four distinct facies of mineralization. A sulphide facies, consisting of bravoite-pyrite, coffinite, uraninite with illite, siderite and chalcopyrite (up to 18.5%), is restricted to the interstitial portions of the basal sandstone. An arsenide facies consists of pararammelsbergite plus subordinate nickeline, gersdorfite, and intergrown arsedides-illite. A bleached facies consists of nodular intergrowths of coffinite-pararammelsbergite and illite with subordinate nickeline, gersdorfite and arsenic. The oxide facies ore consists of coffinite-arsenide-illite nodules which are saturated with hematite±goethite.

(Applies to: miscellaneous comments) Pod dimensions: Pod 1 is 260 m long by 30 to 45 m (98.4 to 147.6 ft) wide by 1.5 to 20 m (4.9 to 65.6 ft) thick. Pod 2 is 152 m (498.7 ft) long by 23 to 30 m (75.5 to 98.5 ft) wide by 1.5 to 19.5 m (4.9 to 64.0 ft) thick. Pod 3 is 110 m (360.9 ft) long by 15 m (49.2 ft) wide by 2.7 to 17 m (8.9 to 55.8 ft) thick. Pod 4 is 61 m (200.1 ft) long by 15 m (49.2 ft) wide by 1.5 to 11.6 m (4.9 to 38.1 ft) thick.
Links to other databases: SMDI; Key value: 1718
GSC U-Th File (Prasad); Key value: 9646
References:
Bennett, R. W., 2002
Geological Atlas of Saskatchewan, Version 5 (2002)
Government of Saskatchewan, CD-ROM

Bray, C. J.; Spooner, E. T. C.; Hall, C. M.; York, D.; Bills, T. M.; Krueger, H. W., 1987
Laser Probe 40Ar-39Ar and Conventional K-Ar Dating of Illites Associated with the McClean Unconformity-related Uranium Deposits
Canadian Journal of Earth Sciences, Volume 24, p. 10 - 23

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

Dyck, W., 1978
Uranium and Associated Elements in Waters of the Key Lake Area, Saskatchewan
In Uranium Exploration Techniques: 1978 November 16-17 Regina Symposium Proceedings, Edited by Parslow, G. R., Special Publication, Saskatchewan Geological Society, 4, 330 p., p. 109 - 220

Gandhi, S. S., 1995
An Overview of the Exploration History and Genesis of Proterozoic Uranium Deposits in the Canadian Shield
Exploration and Research for Atomic Minerals, Department of Atomic Energy, India, Volume 8, p. 1 - 48

Kornik, L. J., 1983
Vertical Magnetic Gradiometer Survey and Interpretation: NEA/IAEA Athabasca Test Area
Section Regional Studies, In Uranium Exploration in Athabasca Basin, Edited by Cameron, E. M., Paper, Geological Survey of Canada, Geological Survey of Canada, 82-11, 310 p., 8 maps, p. 147 - 150

LeCheminant, A. N.; Heaman, L. M., 1989
Mackenzie Igneous Events, Canada: Middle Proterozoic Hotspot Magmatism Associated with Ocean Opening
Earth and Planetary Science Letters, Volume 96, p. 38

Macdonald, C., 1985
Mineralogy and Geochemistry of the Sub-Athabasca Regolith near Wollaston Lake
Chapter 2, Section Unconformity-type Deposits in Saskatchewan, In Geology of Uranium Deposits, Edited by Sibbald, T. I. I.; Petruk, W., Special Volume, The Canadian Institute of Mining and Metallurgy, The Canadian Institute of Mining and Metallurgy, 32, 268 p., p. 155 - 158

Macdonald, C. C., 1980
Mineralogy and Geochemistry of Precambrian Regolith in the Athabasca Basin
M. Sc. Thesis, University of Saskatchewan, 151 p..

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

Ruzicka, V., 1993
Unconformity-type Uranium Deposits
Section Models for Sediment-hosted and Volcanic-related Deposits, In Mineral Deposit Modeling, Edited by Kirkham, R. V.; Sinclair, W. D.; Thorpe, R. I.; Duke, J. M., Special Paper, Geological Association of Canada, Geological Association of Canada, 40, 798 p., p. 125 - 149

Ruzicka, V., 1996
Unconformity-associated Uranium
In Geology of Canadian Mineral Deposit Types, Edited by Eckstrand, O. R.; Sinclair, W. D.; Thorpe, R. I., Geology of Canada, Decade of North American Geology (DNAG), Geological Survey of Canada, Geological Society of America, Geological Survey of Canada, Geological Society of America, Volume 8, 640 p., p. 197 - 210

Saracoglu, N.; Wallis, R. H.; Brummer, J. J..; Golightly, J. P., 1983
Discovery of the McClean Uranium Deposits
Section Introductory Papers, In Uranium Exploration in Athabasca Basin, Edited by Cameron, E. M., Paper, Geological Survey of Canada, Geological Survey of Canada, 82-11, 310 p., 8 maps, p. 51 - 70

Saracoglu, N.; Wallis, R. H.; Brummer, J. J.; Golightly, J. P., 1985
The McClean Uranium Deposit, Northern Saskatchewan - Discovery
Chapter 2, Section Unconformity-type Deposits in Saskatchewan, In Geology of Uranium Deposits, Edited by Sibbald, T. I. I.; Petruk, W., Special Volume, The Canadian Institute of Mining and Metallurgy, The Canadian Institute of Mining and Metallurgy, 32, 268 p., p. 85 - 100

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

Sobczak, L. W., 1983
Gravity Surveys in the NEA/IAEA Athabasca Test Area
Section Regional Studies, In Uranium Exploration in Athabasca Basin, Edited by Cameron, E. M., Paper, Geological Survey of Canada, Geological Survey of Canada, 82-11, 310 p., 8 maps, p. 151 - 166

Thomas, D. J.; Mathews, R. B.; Sopuck, V., 2000
Athabasca Basin (Canada) - Unconformity-type Uranium Deposits: Exploration Model, Current Mine Development and Exploration Directions
In Geology and Ore Deposits 2000: the Great Basin and Beyond; May 15 - 18, 2000 Symposium Proceedings (CD-ROM), Edited by Cluer, J. K.; Price, J. G.; Struhsacker, E. M.; Hardyman, R. F.; Morris, C. L., Symposium Proceedings, Geological Society of Nevada, Geological Society of Nevada, Reno, Nevada, 647 p., p. 103 - 126

Thomas, D. J.; Jefferson, C. W.; Card, C.; Yeo, G.; Sopuck, V., 2002
Introduction: the Eastern Athabasca Basin and its Uranium Deposits
Chapter 1, In Field Trip A1: the Eastern Athabasca Basin and its Uranium Deposits, May 24-26, 2002, GAC-MAC Saskatoon 2002, Edited by Andrade, N; Breton, G.; Jefferson, C. W.; Thomas, D. J.; Tourigny, G.; Wilson, S.; Yeo, G. M., Field Guide Book, Geological Association of Canada - Mineralogical Associationof Canada, Geological Association of Canada, 102 p., p. 1 - 22

Tremblay, L. P., 1982
Geology of the Uranium Deposits Related to the Sub-Athabasca Unconformity
Paper, Geological Survey of Canada, Publication code 81-20, 56 p..

Wallis, R. H.; Saracoglu, N.; Brummer, J. J.; Golightly, J. P., 1883
Geology of the McClean Uranium Deposits
Section Introductory Papers, In Uranium Exploration in Athabasca Basin, Edited by Cameron, E. M., Paper, Geological Survey of Canada, Geological Survey of Canada, 82-11, 310 p., 8 maps, p. 71 - 110

Wallis, R. H., 1970
A Geological Interpretation of Gravity and Magnetic Data, Northwest Saskatchewan
Canadian Journal of Earth Sciences, Volume 7, p. 858 - 868

Wallis, R. H.; Saracoglu, N.; Brummer, J. J.; Golightly, J. P., 1985
The Geology of the McClean Uranium Deposits, Northern Saskatchewan
Chapter 2, Section Unconformity-type Deposits in Saskatchewan, In Geology of Uranium Deposits, Edited by Sibbald, T. I. I.; Petruk, W., Special Volume, The Canadian Institute of Mining and Metallurgy, The Canadian Institute of Mining and Metallurgy, 32, 268 p., p. 101 - 131

Wallis, R. H.; Saracoglu, N.; Brummer, J. J.; Golightly, J. P., 1986
The Geology of the McClean Uranium Deposits, Northern Saskatchewan
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. 193 - 217

Wheatley, K.; Williamson, A.; Tourigny, G.; Wilson, S.; Breton, G., 2006
Geology of the McClean Lake/Sue Deposits
C, Section Athabasca Basin Uranium Deposits, In Abstracts Volume for the 2006 CIM Uranium Field Conference, September 11-12, Saskatoon; Uranium: Athabasca Deposits & Analogues, Edited by Quirt, D., Abstracts Volume, Canadian Institute of Mining and Metallurgy, Saskatoon Section, CIM Geological Society, 164 p., p. 1 - 16

Resource data:
Disclaimer - Reserves/Resource Data

Her Majesty the Queen in Right of Canada, represented by the Minister of Natural Resources (NRCan) does not warrant or guarantee the accuracy, completeness or fitness for any purpose of Reserve and Resource information (Data) contained in this database, including whether the Data is compliant with any securities regulations or standards, and NRCan does not assume any liability with respect to any damage or loss incurred as a result of the use made of the Data.

Resource and reserve figures are historical in nature. The Data source provided with each set of figures should be cited if the Data are re-reported.

Estimate date: 1997; 0.0712 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: proven reserve
Grade-commodity information:U: 4.58 percent
Cutoff grade-commodity:U: 4.58 percent
Reference: Tourigny, G.; Wilson, S.; Breton, G.; Portella, P., 2002: Geology of the Sue C Uranium Deposit, McClean Lake Area, Northern Saskatchewan; Chapter 3, In Field Trip A1: the Eastern Athabasca Basin and its Uranium Deposits, May 24-26, 2002, GAC-MAC Saskatoon 2002, Edited by Andrade, N; Breton, G.; Jefferson, C. W.; Thomas, D. J.; Tourigny, G.; Wilson, S.; Yeo, G. M., Field Guide Book, Geological Association of Canada - Mineralogical Associationof Canada, Geological Association of Canada, 102 p., p. 35 - 51
Percent weights allocated to deposit: 100.0%
Associated group(s): McClean Lake Uranium Deposits (40004)

Generated 2007-03-02 2:36:29 PM with GQuery -- 3.7 ADO (3.19/3.20/3.21 -- 2006-02-24)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada