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


DEPNO COUNTRY LOCATION ALLNAMES COMMODITIES
40017 Canada (Saskatchewan) 58.19.35 N -- 103.55.57 W Dawn Lake Zones 11, 11A , 11B and 14; Dawn Lake Uranium Deposits; Dawn Lake Pods 284 and 334; Dawn Lake Cu-Ni Zone 14 U; Cu; Ni; Co

Database name: Uranium Deposits, Athabasca Basin
Custodial agency: Geological Survey of Canada
Compilers: Sunil S. Gandhi
Release date: 2007-03-02
   
Deposit name(s): Dawn Lake Zones 11, 11A , 11B and 14 (occurrence name); Dawn Lake Uranium Deposits (occurrence name); Dawn Lake Pods 284 and 334 (occurrence name); Dawn Lake Cu-Ni Zone 14 (occurrence name)
Political location(s): Canada; Province or state: Saskatchewan; Nearest community: Rabbit Lake mine-mill complex (20 km NW)
NTS map data: 064L05 (Cunning Bay)
Deposit clan (type): Unconformity-associated
Deposit (sub) types: Unconformity-associated - Proterozoic - clay-bound; Zone 11 is above the sub-Athabasca Group unconformity, and Zones 11A and 14 straddle it; Zone 11B is however below the unconformity, hence it is of sub-type 'Fracture-bound'; they are polymetallic; Reference: Clarke, P. J.; Fogwill, W. D., 1986: Geology of the Dawn Lake 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. 184 - 192
Deposit status: drilled showing; Size category: medium; Status comments: deposits occur at 100 m beneath the Athabasca sandstone and overburden; resources outlined by drilling
Geologic province: Churchill - Hearne Craton
Geologic subprovince: Wollaston Domain (Fold Belt)
Geologic district: Eastern Athabasca Basin
Deposit object located: drill hole
Commodities: U; Cu; Ni; Co
Mineralization styles: massive deposition above unconformity (mineralization zone); massive deposition at unconformity (mineralization zone); dissemination below unconformity (mineralization zone); fracture-filling and dissemination (mineralization zone); coating (mineralization zone); cavity - fill (mineralization zone); collapse-breccia filling (mineralization zone); irregular aggregation (mineralization zone); remobilized ore (wall rock); vuggy crystalline quartz fillings (alteration halo)
Geological ages: Early Mesoproterozoic - Middle Mesoproterozoic (mineralization)
Late Paleoproterozoic - Early Mesoproterozoic (host rocks)
Tectonic setting: continental marginal deformation zone-fold belt; convergent; Formal name: Wollaston Domain (Fold Belt) (host rocks)
continental basin-intracratonic; stable; Formal name: Athabasca Basin (host rocks)
Coincident features: transcurrent faults (shearing, mylonitization, fracturing and brecciation along the N-trending fault zone in sub-Athabasca basement); Coincident feature name: 11 and 14 Conductor Zones
lithology (graphitic metapelite in sub-Athabasca basement; associated minor calc-silicates and pegmatites); Coincident feature name: Calc-silicate-metapelite transition zones
unconformity (observed changes in unconformity level topographic rather than structural); Coincident feature name: Sub-Athabasca unconformity
deformed regolith at ore bodies (clay-altered red regolith near ore zones has contorted and disjointed foliation along nearly horizontal shear planes); Coincident feature name: Crenulite
cross-fault (Zone 14 along a NE-trending fault at approximately 10° to the strike of '14 Conductor', which curves gently to NE); Coincident feature name: Low angle fault cutting '14 Concuctor'
fault intersection(s) (high grade ore in zones 11, 11A and 11B appears to occur where the main NNE fault is intersected by N and E trending faults); Coincident feature name: NNE, N and E trending faults
Regional tectonic structure: transcurrent shear zones (50-100 m wide; 300 m apart; NE-trend parallel to basement strata; steep dip to NW; no vertical displacement in Athabasca Group) Tectonic structure name: 11 and 14 Conductor Zones
ductile and brittle-ductile fault zone (host of zones 11, 11A and 11B; marked by mylonitization, shearing, brecciation, and slickensides indicating horizontal movements) Tectonic structure name: 11 Conductor Zone
cross-fault (mineralized zone parallel to the cross fault; approximately 10° E of the axix of 14 conductor; both curve gently to ENE ) Tectonic structure name: northeast-trending
Host rocks: (1) metamorphic; metasedimentary schist (at boundary with calc-silicates to NW); Depositional setting: platform-shelf; Metamorphic grade: amphibolite - upper; Component: basement at unconformity
External host rock forms:schistose-gneissic metasediments
Host rock protoliths:pelite and semipelite (contain varying amounts of graphite and sulphides); Host rock protolith name: Hidden Bay Assemblage
Internal host rock structures:foliated to gneissic
Individual lithologies:metapelite (quartz-feldspar-cordierite-muscovite-biotite-sillimanite gneiss; up to 10 % graphite, minor tourmaline)
metasemipelite (quartz-feldspar-cordierite-muscovite-biotite-sillimanite gneiss; up to 10 % graphite, minor tourmaline)
Host rock stratigraphy:Upper Wollaston Group

(2) metamorphic; calc-silicate schist (facies transition with pelites to SE); Depositional setting: platform-shelf; Metamorphic grade: amphibolite - upper; Component: basement at unconformity
External host rock forms:thin to thick bedded
Host rock protoliths:calcareous sediments (in part dolomitic; lithological variation due to facies changes; weakly carbonaceous; accesory sulphides); Host rock protolith name: Hidden Bay Assemblage
Internal host rock structures:banded and boudinaged
Individual lithologies:calc-silicate (contains calcite or dolomite, diopside, quartz, chlorite, plagioclase, garnet, diopside, scapolite, tourmaline, apatite and ilmenite)

(3) intrusive; granite suite (anatectic and younger pegmatites); Host series: calc-alkaline; Metamorphic grade: amphibolite - upper; Component: basement
External host rock forms:coarse grained pegmatitic segregations and dyke-li
Host rock protoliths:metasedimentary rocks (formed during two stages of prograde metamorphism of the Hudsonian orogeny); Host rock protolith name: upper mixed sedimentary sequence
Internal host rock structures:coarse grained
Individual lithologies:granitic pegmatite (varying amounts of quartz, plagioclase, K-feldspar, muscovite tourmaline, sericite and garnet)

(4) surficial; laterite (weathered basement; profile ~50 m deep); Host series: paleoregolith; Depositional setting: subaerial; Metamorphic grade: unmetamorphosed
External host rock forms:red hematitic upper zone grading to green zone bel
Host rock protoliths:metasedimentary and granitic rocks (peneplaned basement; relatively deeper weathering along fault zones ); Host rock protolith name: Hidden Bay Assemblage
Internal host rock structures:weathered fragile mass
Individual lithologies:laterite (thin bleached zone at the unconformity above thick red hematitic zone, which grades down to red-green chloritic zone)

(5) sedimentary; sandstone-conglomerate (paleocurrent direction: east to west); Depositional setting: fluviatile; Metamorphic grade: unmetamorphosed; Component: mineralization zone
External host rock forms:thin to thick bedded, flat lying
Host rock protoliths:arkosic sandstone (basal siliciclastic sediments of the intracratonic Athabasca basin); Host rock protolith name: basal unit of Athabasca Group
Internal host rock structures:illite-kaolinite matrix 1 to 5 %
Individual lithologies:quartz arenite (Manitou Falls Formation ~100 m thick; basal member 'a' in local troughs; rest mainly member 'b' with a 10 m thick conglomerate marker 30 m above base)
Host rock stratigraphy:Manitou Falls Formation
Country rocks: (1) granitic gneisses; (reactivated Archean granites); Country rock name: Torwalt and Midwest Domes; Metamorphic grade: amphibolite (upper) - granulite
Country rock protoliths:granitic plutons (Torwalt dome 4 km to SE of deposits and Midwest dome 2.5 km NW of them); Country rock protolith name: Archean basement granite
Individual lithologies:granitic gneiss (reactivated Archean orthogneiss have high aeromagnetic response relative to the Paleoproterozoic Wollaston Group)

(2) metapelites; (basal unit of metasediments); Country rock name: Lower Pelitic Sequence; Metamorphic grade: amphibolite (upper) - granulite
Country rock protoliths:pelite and semipelite (corresponds to lower part of the Daly Lake Group of western Wollaston Domain); Country rock protolith name: basal unit of Wollaston Group
Individual lithologies:metapelitic gneisses and schists (equivalent of metapelitic strata that host other sub-Athabasca unconformity-related uranium deposits)

(3) meta-arkose; (folded and metamorphosed); Country rock name: Middle Arkosic Sequence; Metamorphic grade: amphibolite (upper) - granulite
Country rock protoliths:arkosic sandstone (corresponds to the upper part of Daly Lake Group of western Wollaston Domain); Country rock protolith name: unit of Lower Wollaston Group
Individual lithologies:meta-arkosic gneisses (underlies Hidden Bay Assemblage in synclinoriun between the Torwalt and Midwest domes)

(4) metapelites-calc-silicates; (folded and metamorphosed); Country rock name: Upper Mixed Sedimentary Sequence; Metamorphic grade: amphibolite (upper) - granulite
Country rock protoliths:pelites, psammopelites and carbonates (includes host strata of Dawn Lake deposits; corresponds to Hidden Bay Assemblage of Wollaston Group); Country rock protolith name: upper mixed sedimentary sequence
Individual lithologies:metapelitic & calc-silicate gneisse (paragneisses and paraschists contain more carbonates and sulphides than the host strata of other deposits in Athabasca basin)

(5) pegmatites; (two generations of pegmatite); Country rock name: Anatectic & Intrusive Pegmatites; Metamorphic grade: amphibolite (upper) - granulite
Country rock protoliths:metasedimentary rocks (early anatectic pegmatites as narrow bands parallel to foliation; late discordant pegmatites are larger bodies); Country rock protolith name: upper mixed sedimentary sequence
Individual lithologies:pegmatite (quartz-plagiclase-potash feldspar-tourmaline; late pegmatites contain minor garnet, cordierite, sillimanite and muscovite)

(6) paleoregolith; (lateritic weathering); Country rock name: sub-Athabasca regolith; Metamorphic grade: unmetamorphosed
Country rock protoliths:granitic gneisses and metasediments (nearly peneplaned basement exposed to lateritic weathering during the Early Mesoproterozoic); Country rock protolith name: sub-Athabasca basement
Individual lithologies:Lateritic (thin bleached zone at the unconformity above thick red hematitic zone, which grades down to red-green chloritic zone)

(7) conglomerate-sandstone; (flat-lying, undeformed); Country rock name: Athabasca Group; Metamorphic grade: unmetamorphosed
Country rock protoliths:quartz arenites (siliciclastic sediments deposited in intracrtonic basin); Country rock protolith name: Manitou Falls A, B and C Formations
Individual lithologies:conglomerate-sandstone (basal conglomerate in local depresssions; marker conglomerate bed, 5- 10 m thick, 30 m above unconformity)

(8) diabase dyke; (post-Athabasca dyke); Country rock name: Mackenzie dyke; Metamorphic grade: unmetamorphosed
Individual lithologies:diabase (a NW-trending dyke, which cuts Midwest deposit, passes 7 km south of Dawn Lake deposits)
Metallogenic signatures: U-Ni-Co-Cu-As
Alteration signatures: argillic alteration: clay minerals, hematite coating, secondary silica; What was altered: Athabasca sandstone and metasediments; Component: alteration halo
kaolinization: kaolinite; What was altered: host sandstone; Component: alteration halo
hematization: disseminated fine hematite; red colouration ; What was altered: host sandstone and metasediments; Component: alteration halo
secondary coarse quartz: crystalline quartz in vugs with minor pitchblende; What was altered: Athabasca sandstone ; Component: wall rock
Mineralogy: (fracture fillings, coatings, disseminations / mineralization zone): pitchblende - colloform, pitchblende - sooty, secondary U minerals
(massive ore / mineralization zone): pitchblende - cubic, pitchblende - colloform, pitchblende - sooty, coffinite, chalcopyrite, Ni-Co sulpharsenide, pyrite
Radiometric ages: Object dated: Mineralogy(2); Age - Ma: 1,349; +15; -15; Dating method: U-Pb; Concentrate: pitchblende; Source rock: uranium ore; Formal name: initial stage of mineralization; Event dated: mineralization; Interpretive comment: sample from Pod 334, Zone 11A; 8 collinear data points; lower intercept at 415±37 Ma; no Pb from Th; Reference: Cumming, G. L.; Krstic, D., 1992: The Age of Unconformity-Related Uranium Mineralization in the Athabasca Basin, Northern Saskatchewan; Canadian Journal of Earth Sciences, Volume 29, p. 1623 - 1639

Object dated: mineralogy(2); Age - Ma: 1,100; Dating method: U-Pb; Concentrate: pitchblende; Source rock: uranium ore (high grade); Formal name: Stage II botryoidal pitchblende; Event dated: mineralization; Interpretive comment: samples define a crude discordant line; pitchblende parallel to foliation; coates cubic uraninite ; Reference: Clarke, P. J.; Fogwill, W. D., 1986: Geology of the Dawn Lake 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. 184 - 192
Deposit shape: lensoid; Component: Zone 14
Deposit dimensions:length: 600 metre
width: 70 metre
height: 25 metre

lensoid; Component: Zone 11
Deposit dimensions:length: 400 metre
width: 60 metre
height: 50 metre

lensoid; Component: Zone 11A
Deposit dimensions:length: 700 metre
width: 15 metre
thickness: 20 metre

zone of en echelon lenses; Component: Zone 11B
Deposit dimensions:length: 300 metre
width: 100 metre
thickness: 40 metre
Qualified comments: (Applies to: discovery and development) The Dawn Lake project was initiated by Asamera Oil Corporation in 1976. An airborne EM survey was carried out first, which located several conductors that were followed on ground with a TURAM survey. No radioactive boulders were found in the area. Exploratory drilling in 1978 on two conductors, which trend NE and are 400 m apart, intersected mineralization in holes 11 and 14 (500 m N of 11), respectively. The two zones were named after the discovery holes. Drilling along the geophysical extension of Zone 11 discovered two other zones, located about 1.25 km and 2 km to the southwest, namely the Zones 11A and 11B, during 1979 and 1980, respectively. By 1981 a total of 450 holes were drilled, and discontinuous mineralization was found over a total strike length of 2300 m. The best reported grades of 21.8 % U3O8 over 14.6 m is in drill hole 334, in a pod named '334 Pod' within Zone 11A. The pod is located 30 to 40 m below the sub-Athabasca Group unconformity. In 1988 Saskatchewan Mining and Development Corp. (later in the year Cameco Corp. through merger with Eldorado Nuclear Ltd.) restaked the zones within the initial exploration permit. During the same year Cogema Resources Inc., in joint venture with Cameco, PNC Exploration and Kepco, conducted a fixed wing EM, Geotem and magnetic survey to the west of the Dawn Lake deposits and relogged selected drill holes. Further exploration in the area was done intermittently during 1990-'97 by the joint venture, and included TDEM survey and drilling to check for mineralization along the strike of Zone 11A for the '334 Pod' style of mineralization. Mineable reserves for the Dawn Lake deposits were reported by the Joint Venture in 1997, and the revised drill indicated resources were published in Cameco's 2001 Annual Report. Some drilling has been done since then, but its results are not published (Yeo and Jirica, 2002).

(Applies to: structure) The basement at the Dawn Lake deposits comprises Late Paleoproterozoic Wollaston Group metasediments in a northeast-trending fold zone, between reactivated Archean granitic gneiss domes on its sides. The metasedimentary sequence includes the basal pelitic unit, middle arkosic unit and the upper unit of mixed beds of pelite, semipelite and calc-silicate. The beds are nearly vertical and metamorphosed to amphibolite facies. Mineralization occurs at pyritic-graphitic pelite (EM conductor). It is localized at faults that are parallel to the beds in case of the basement-hosted 11A and 11B zones, and at faults cutting the beds at low angle in case of the 11 and 14 zones that are at the sub-Athabasca group unconformity. The faults show shearing, brecciation, mylonitiztion, slickensided clay seams or rotated blocks in sandstone and silicified fractures. Horizontal slickensides indicate mainly lateral movements, and there is little or no vertical displacement of the Athabasca strata overlying them. Lateritic paleoweathering of the basement is deeper along the faults than elsewhere. Clay alteration associated with mineralization is superimposed on the regolithic material at the mineralized zones, which upon compaction has led to crenulation of foliation. Some post-mineralization movements along the faults is indicated by fragments of hard pitchblende in breccia at the bottom of Zone 11B. The Dawn Lake deposits differ from other typical unconformity-associated deposits of the district in that they are hosted by stratigraphically higher pelitic beds of the Wollaston Group rather than by the basal ones, and they occur at faults that show little or no vertical displacement of the overlying Athabasca sandstone.

(Applies to: mineralization) The Zones 11 and 14 are similar in size, shape and nature. Uranium in them is irregularly distributed through a central bulbous core with narrowing tails at both ends. It occurs mainly as sooty and botryoidal pitchblende, coffinite and fine grained yellow secondary minerals in clay-rich fractures, and as disseminations in sandstone and paleoregolith. The mineralization is located at small ridges in the basement, which are topographic as seen from the lack of offset in upper conglomerate bed that passes over the ridges. This is also seen in Zone 11A, which is mainly at the unconformity, but extends above it and also forms a few high grade pods in the basement, including the 334 Pod with the best drill intersection of 18.49 % U over 14.6 m. It is a long, narrow and cylindrical zone, and contains the largest resources. The basement-hosted Zone 11B comprises several en echelon lenses, which occur along the boundary of pelitic gneiss and calc-silicate rocks, as is the case in Zone 11A, and also along steep faults. The uranium oxide phases in the lenses include early formed cubic uraninite, which are overgrown and/or replaced by duller botryoidal pitchblende, which is overprinted by sooty pitchblende and secondary uranium minerals. Ore minerals in these two zones occur above, beside and below the 'crenulated zone' in paleoregolith, which was formed due to deeper weathering along faults and later alteration to clay during mineralization. Compaction in the clayey parts contorted the original steep foliation and formed trough. Copper sulphides and Ni-Co sulpharsenides occur in varying amounts in all four zones, and are locally concentrated in significant amounts in uranium ore. Thus the deposits are polymetallic, typical of the unconformity-associated deposits that are at or just above the unconformity. Intense vuggy silicification in calc-silicate rocks occurs near the deposits, and is accompanied by some chalcopyrite, Ni-Co arsenides and sooty pitchblende.

(Applies to: reserve/resource descriptions) In 1981 Asamera Oil Corporation reported the drill indicated resources, using cut-off grade of 0.1 % U3O8 (0.0848 % U) over 1.5 m, as follows: Zone Tonnes Ore Percent U Tonnes U 11 252000 0.458 1361 11A 302400 0.967 3447 11B 326600 1.484 5715 14 368700 0.322 1187 Additional drilling by the company defined two high grade pods, namely '334 Pod' in Zone 11A, and '284 Pod' in Zone 11B. Hence the resources of these two zones were revised upward in 1982 as follows: 11A+334 364526 1.815 6615 11B+284 308316 1.721 5307 In 1993 Cameco Corporation estimated the mineable reserves in the 4 zones at 686000 t ore averaging 1.97 % U3O8 (1.671 % U) containing a total of 22.3 million pounds of U3O8 (11461 t U). Some drilling has been done since then, but no revised resource/reserve figures have been published.
Links to other databases: SMDI; Key value: 1716
SMDI; Key value: 1717
GSC U-Th File (Prasad); Key value: 9527
GSC U-Th File (Prasad); Key value: 9663
Geophysical-chemical signature: Signature type: Airborne EM; Response type: positive (moderate)
Signature type: Ground EM; Response type: positive (strong)
References:
Bennett, R. W., 2002
Geological Atlas of Saskatchewan, Version 5 (2002)
Government of Saskatchewan, CD-ROM

Clarke, P. J.; Fogwill, W. D., 1981
Geology of the Asamera Dawn Lake Uranium Deposits Athabasca Basin, Northern Saskatchewan
In CIM Geology Division, Uranium Field Excursion Guidebook, September 8-13, 1981, Saskatchewan , Edited by Canadian Institute of Mining and Metallurgy, Guidebook, Canadian Institute of Mining and Metallurgy, CIM Geology Division, 167 p., p. 19 - 36

Clarke, P. J.; Fogwill, W. D., 1985
Geology of the Dawn Lake 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. 132 - 139

Clarke, P. J.; Fogwill, W. D., 1986
Geology of the Dawn Lake 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. 184 - 192

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

Cumming, G. L.; Krstic, D., 1992
The Age of Unconformity-Related Uranium Mineralization in the Athabasca Basin, Northern Saskatchewan
Canadian Journal of Earth Sciences, Volume 29, p. 1623 - 1639

Hoeve, J; Sibbald, T. I. I., 1978
On the Genesis of Rabbit Lake and Other Unconformity-type Uranium Deposits in Northern Saskatchewan
Economic Geology, Volume 73, p. 1450 - 1473

Jirica, D.; Wasyliuk, K., 1996
Cameco Corporation Dawn Lake Venture, Geology and Geochemistry of the Dawn Lake Deposit, 1995 Assessment Report on Claims CBS-9332 & CBS-9333
Saskatchewan Energy and Mines Assessment Files, Saskatchewan Industry and Resources, Cameco Corporation, Publication code 64L05-0140

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

Persaud, E. C. R., 1987
Mineralogy of the 334 Pod, 11A Zone, Dawn Lake, Saskatchewan
M. Sc., University of Alberta, Edmonton

Persaud, E. C. R.; Morton, R. D.; Launspach, S., 1988
Bismuthian Gersdorffite from the Dawn Lake U-Ni Deposit, N. Saskatchewan, Canada
Neues Jahrbuch fur Mineralogie. Monatshefte, Volume 7, p. 309 - 323

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

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

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..

Yeo, G. M.; Jiricka, D., 2002
Dawn Lake Deposits
Chapter 2, 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. 23 - 34

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; 0.601 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: measured resource
Grade-commodity information:U: 1.433 percent
Reference: Saskatchewan Industry and Resources, 2001: Saskatchewan Mineral Deposits Index; Government of Saskatchewan, Geological Atlas of Saskatchewan, Internet
Percent weights allocated to deposit: 100.0%

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