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


DEPNO COUNTRY LOCATION ALLNAMES COMMODITIES
40045 Canada (Nunavut) 64.18.39 N -- 097.56.10 W Jane 2 Grid U

Database name: Uranium Deposits, Athabasca Basin
Custodial agency: Geological Survey of Canada
Compilers: Sunil S. Gandhi
Release date: 2007-03-02
   
Deposit name(s): Jane 2 Grid (occurrence name)
Political location(s): Canada; Province or state: Nunavut; Nearest community: Baker Lake settlement (93 km 268°)
NTS map data: 066A05 (Judge Sissons Lake)
Deposit clan (type): Unconformity-associated
Deposit (sub) types: Unconformity-associated - Proterozoic; Mineralization occurs at contact of metasedimentary rocks and granite along the NE-trending fault that passes through the Andrew Lake deposit 325 m to the NE; situated at the SW end of Kiggavik Trend; Reference: Wallenberg, P., 1994: Update on the Uranium Exploration in the Thelon Basin; In Exploration Overview 1994, Edited by Goff, S. P., Annual Exploration Overview, Department of Indian and Northern Affairs, Canada, Department of Indian and Northern Affairs, Yellowknife, Canada, p. 154 - 155
Deposit status: drilled showing; Size category: unknown; Status comments: exploratory drilling done in 1992 to test a 600 m long geophysical anomaly, totalled 3450 m in 9 holes; the best intersection was 8 % U over 1 m
Geologic province: Churchill - Rae Craton
Geologic subprovince: Amer Fold Belt
Geologic district: Eastern Thelon Basin
Deposit object located: drill hole
Commodities: U
Mineralization styles: veinlets (mineralization zone); disseminated (mineralization zone)
Geological ages: Late Paleoproterozoic (host rocks)
Middle Mesoproterozoic (mineralization)
Tectonic setting: continental marginal deformation zone-fold belt; transpressive; Formal name: Amer Fold Belt (host rocks)
continental marginal granitic pluton-fold belt; convergent; Formal name: Hudsonian granite (host rocks)
Coincident features: intrusive contact(s) (Mineralization at the contact of granite intrusion in the metasiltstone); Coincident feature name: Metasediment-granite contact
unconformity (the Thelon Formation eroded in the deposit area; proximity to the unconformity indicated by effects of lateritic paleoweathering in its basement rocks); Coincident feature name: Sub-Thelon unconformity
fault(s) (NE-trending steep brittle fault zone that hosts the Andrew Lake and End Grid deposits to the northeast); Coincident feature name: Andrew Lake fault
Regional tectonic structure: fault (NE-trending fault intersecting the major ENE-trending Sissons Lake fault and offsets it sinistrally, and hosts the Andrew Lake and End Grid deposits) Tectonic structure name: Andrew Lake fault
regional structural control of mineralization (a 20 km linear trend hosting 8 uranium deposits/prospects, striking NE and gently convex to the NW, located between the Thelon and Sissons Lake faults) Tectonic structure name: Kiggavik Trend
Host rocks: (1) metamorphic; metasedimentary schist (lithologically similar to the host metasiltstone of the Andrew Lake Lower lens); Depositional setting: platform-shelf; Metamorphic grade: greenschist - upper
Host rock protoliths:sandstone-siltstone-shale (probably equivalent of the Early Paleoproterozoic Lower Hurwitz Group to the south deposited on the Rae craton); Host rock protolith name: Judge Sissons Lake Sequence
Individual lithologies:metasiltstone
Host rock stratigraphy:Judge Sissons Lake Sequence

(2) intrusive; granite suite (intrusive into the metasiltstone); Depositional setting: hypabyssal; Metamorphic grade: unmetamorphosed
External host rock forms:stock
Host rock protoliths:granitic pluton; Host rock protolith name: Unnamed
Internal host rock structures:massive to weakly foliated
Individual lithologies:granite
Metallogenic signatures: U
Mineralogy: (mineralization - disseminated / mineralization zone): pitchblende
(mineralization - vein / mineralization zone): pitchblende
Qualified comments: (Applies to: discovery and development) A 600 m long geophysical anomaly with favourable lithologies and structure was selected as a drill target in 1993; 9 holes were drilled totalling 3450 m; the best intersection was 8 % U over 1 m.
Links to other databases: NUMIN; Key value: 066ASW0023
References:
Fuchs, H.; Hilger, W.; Prosser, E., 1986
Geology and Exploration History of the Lone Gull Property
5, Section Other Helikian Unconformity-associated and Sedimentary-hosted Deposits, 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. 286 - 292

Fuchs, H. D.; Hilger, W., 1989
Kiggavik (Lone Gull): An Unconformity Related Uranium Deposit in the Thelon Basin, Northwest Territories, Canada
In Uranium Resources and Geology of North America, Edited by Anonymous, TECDOC, International Atomic Energy Agency, Vienna, International Atomic Energy Agency, Vienna, Austria, 500, 529 p., p. 429 - 454

Gandhi, S. S., 1989
Geology and Uranium Potential of the Thelon Basin and Adjacent Basement in Comparison with the Athabasca Basin Region
In Uranium Resources and Geology of North America, Edited by Anonymous, TECDOC, International Atomic Energy Agency, Vienna, International Atomic Energy Agency, Vienna, Austria, 500, 529 p., p. 411 - 428

Goff, S. P. Editor(s)), 1994
Exploration Overview 1994
Annual Exploration Overview, Department of Indian and Northern Affairs, Canada, Department of Indian and Northern Affairs, Yellowknife, Canada

Hasegawa, K.; Davidson, G. I.; Wallenberg, P.; Iida, Y., 1990
Geophysical Exploration for Unconformity-related Uranium Deposits in the Northeastern Part of Thelon Basin, Northwest Territories, Canada
Mining Geology, Volume 40, p. 83 - 95

Miller, A. R.; Blackwell, J. D.; Curtis, L.; Hilger, W.; McMillan, R. H.; Nutter, E., 1984
Geology and Discovery of Proterozoic Uranium Deposits, Central District of Keewatin, Northwest Territories, Canada
Section Unconformity-related Types, In Proterozoic Unconformity and Stratabound Uranium Deposits, Edited by Ferguson, J., TECDOC, International Atomic Energy Agency, Vienna, International Atomic Energy Agency, Vienna, Austria, 315, 338 p., p. 285 - 312

Wallenberg, P., 1994
Update on the Uranium Exploration in the Thelon Basin
In Exploration Overview 1994, Edited by Goff, S. P., Annual Exploration Overview, Department of Indian and Northern Affairs, Canada, Department of Indian and Northern Affairs, Yellowknife, Canada, p. 154 - 155


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