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


DEPNO COUNTRY LOCATION ALLNAMES COMMODITIES
40037 Canada (Nunavut) 64.26.32 N -- 097.38.50 W Kiggavik Main Zone; Kiggavik Deposit; Lone Gull Deposit 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): Kiggavik Main Zone (occurrence name); Kiggavik Deposit (occurrence name); Lone Gull Deposit (occurrence name)
Political location(s): Canada; Province or state: Nunavut; Nearest community: Baker Lake settlement (80 km 280°)
NTS map data: 066A05 (Judge Sissons Lake)
Deposit clan (type): Unconformity-associated
Deposit (sub) types: Unconformity-associated - Proterozoic - fracture-bound; Fracture-bound Proterozoic unconformity-related deposit in basement rocks uncovered by erosion of Thelon Formation and sub-Thelon regolith; graphite absent; clay alteration typical of the deposit type; Reference: 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
Deposit status: deposit; Size category: large
Geologic province: Churchill - Rae Craton
Geologic subprovince: Amer Fold Belt
Geologic district: Eastern Thelon Basin
Deposit object located: drill hole
Commodities: U
Mineralization styles: vein (mineralization zone); parallel veins (mineralization zone); disseminated (mineralization zone)
Geological ages: Neoarchean - Late Paleoproterozoic (host rocks)
Middle Mesoproterozoic (mineralization)
Tectonic setting: continental marginal deformation zone-fold belt; transpressive; Formal name: Amer Fold Belt (host rocks)
continental basin-intracratonic; stable; Formal name: Thelon Paleosol (host rocks)
continental fault-controlled volcano-sedimentary basins-grabens; divergent; Formal name: Dubawnt Group (country rocks)
continental basin-intracratonic; stable; Formal name: Thelon Formation (country rocks)
Coincident features: intersection(s) (two cigar-shaped ore lenses plunging 25° to the ENE, occur at junction of the 095° faults that dip 60° N and the 065° faults that dip steeply to the S)
fault(s) (a set of NNW-trending faults, parallel to the trend of the Mackenzie dykes, cause minor offsets in the deposit)
unconformity (TheThelon Formation is eroded in the deposit area; proximity to the unconformity indicated by effects of lateritic paleoweathering in its basement roc); Coincident feature name: Sub-Thelon unconformity
Regional tectonic structure: linear feature (fault-controlled 20 km linear trend hosting 7 uranium deposits, striking NE and gently convex to the NW, between the Thelon and Sissons Lake faults) Tectonic structure name: Kiggavik Trend
fault (ENE-trending normal fault with downfaulted Thelon Formation on the north side against the basement on the south side; parallels the Sissons Lake fault) Tectonic structure name: Thelon fault
fault (ENE-trending normal fault with downfaulted sub-Thelon paleosol on the north side against the basement on the south side; parallels the Thelon fault) Tectonic structure name: Sissons Lake fault
Host rocks: (1) metamorphic; metasedimentary schist (immature clastic sequence); Depositional setting: shallow marine; Metamorphic grade: amphibolite - lower; Component: mineralization zone
Internal host rock structures:foliated
Individual lithologies:metagreywacke (main host metagreywacke contains quartz, feldspars, biotite, muscovite, minor garnet; overlain by thin pelite-iron formation, followed by meta-arkose)
metapelite (contains iron formation; overlies metagreywacke)
meta-arkose (overlies thin pelite iron formation)
feldspathic sandstone
Host rock stratigraphy:Upper Woodburn Group

(2) intrusive; granite suite (S-type with high K-feldspar and Ba content); Host series: calc-alkaline; Depositional setting: hypabyssal; Metamorphic grade: unmetamorphosed; Component: mineralization zone
External host rock forms:stock
Host rock protoliths:granitic pluton (one of the ore zones extends into the granite on the south side; larger body on the north); Host rock protolith name: Fluorite Granite
Internal host rock structures:medium grained, massive
Individual lithologies:granite (15-35 % quartz, 35-45 % K-spar, 15-25 % plagioclase, 5-10 % biotite/chlorite, 10-25 % muscovite/sericite; accessory pyrite, fluorite, molybdenite etc.)
Host rock stratigraphy:Fluorite granite Igneous Suite

(3) surficial; laterite; Depositional setting: subaerial; Metamorphic grade: unmetamorphosed
External host rock forms:lateritic profile
paleoregolith
Host rock protoliths:metasedimentary rocks; Host rock protolith name: Upper Woodburn Group
granite; Host rock protolith name: Fluorite Granite
Internal host rock structures:weathered fragile mass
Individual lithologies:laterite (different lithologies show different degrees and depth of lateritic alteration; fault zones altered to deeper levels)
Host rock stratigraphy:Thelon Paleosol

(4) intrusive; gabbro suite (post-ore dyke; cause of local deformation of ore); Host series: calc-alkaline; Depositional setting: hypabyssal; Metamorphic grade: unmetamorphosed
External host rock forms:dyke
Host rock protoliths:gabbroic magma (a NNW-trending post-ore diabase dyke of the Mackenzie swarm intersects the Kiggavik main zone at high angle); Host rock protolith name: Mackenzie Diabase Dyke
Internal host rock structures:medium grained
Individual lithologies:gabbro (the post-ore dyke is little altered; it apparently caused some redistribution of the ore minerals)
Country rocks: (1) mafic volcanics; (NE-trending belt 10 km south of the deposit); Country rock name: Lower Woodburn Group; Metamorphic grade: amphibolite
Country rock protoliths:basalt (highly deformed and metamorphosed Neoarchean supracrustal sequence of the Rae craton, associated with mafic and felsic orthogneisses)
Individual lithologies:amphibolite (foliated and schistose biotite and/or hornblende bearing gneisses, may include metasedimentary rocks; in part migmatized)

(2) metasedimentary schist; (10 km wide NE-trending belt; host of Kiggavik deposit); Country rock name: Judge Sissons Lake sequence; Metamorphic grade: amphibolite - lower
Country rock protoliths:feldspathic wackes, pelites (probably equivalent of the Lower Hurwitz Group to the south deposited on the Rae craton before intrusion of gabbro sills at 2110 Ma )
Individual lithologies:meta-arkose (mainly drab green sulphide-bearing biotite-muscovite feldspathic wackes; metapelites and metasemipelites with minor lean oxide facies iron formation)
feldspathic wacke
metapelite
meta-semipelite
iron formation (minor, lean, oxide facies)

(3) orthoquartzite; (associated with the feldspathic wacke strata); Country rock name: Middle Woodburn Group; Metamorphic grade: greenschist (upper) - amphibolite (lower)
Country rock protoliths:supermature sandstone (similar to the basal orthoquartzite of the late Paleoproterozoic Amer Group to the north and northeast; possible unconformity with feldspathic wackes )
Individual lithologies:orthoquartzite (exposed in a zone between the deposit and a NNE-trending fault with the Thelon Formation 2 km to the north; affected by sub-Thelon paleoweathering)

(4) unclassified granitoid rocks; (intrusions in the metasedimentary and metavolcanic strata); Country rock name: Neoarchean Granitoids
Individual lithologies:granite (massive to gneissic; includes some diorite, syenite and porphyries of uncertain age)
granodiorite
monzonite

(5) redbeds; (alluvial-fluviatile); Country rock name: Dubawnt Group; Metamorphic grade: unmetamorphosed
Individual lithologies:red sandstone (deposited 1.84-1.75 Ga; alluvial fan - braided stream sediments)

(6) bimodal volcanic rocks - mainly mafic; (subaerial); Country rock name: Dubawnt Group; Metamorphic grade: unmetamorphosed
Individual lithologies:basalt (trachytic, potassic)
andesite (trachytic, potassic)
trachyte
rhyolite
dacite (minor)

(7) paleo-regolith; (lateritic weathering); Country rock name: Thelon Paleosol; Metamorphic grade: unmetamorphosed
Country rock protoliths:gneisses, granites and supracrustal strata (profile up to 50 m thick; deeper along faults; weathering effects vary on different rock types); Country rock protolith name: sub-Thelon basement
Individual lithologies:laterite (hematization in the upper part of weathered zone; locally bleached; kaolinite is abundant in the zone and occurs as clay-clasts in the sandstone above)

(8) conglomerate-sandstone-siltstone; (siliciclastic sediments; undeformed; present area 85000 sq km and thickness 1.3 km); Country rock name: Thelon Formation; Metamorphic grade: unmetamorphosed
Country rock protoliths:conglomerate-pebbly sandstone-siltstone (basal conglomerate unit with pebbly sandstone and siltstone beds; succeeded by mature sandstone, quartz arenite and lithic subarenite-siltstone units)
Individual lithologies:conglomerate (basal unit with matrix of quartz, authigenic clay, diagenetic illite and fluorapatite; overall fining upward sequence; fluvial transport east to west)
sandstone
siltstone

(9) diabase dyke; (northwest-trending, vertical or very steep dykes); Country rock name: Mackenzie diabase dyke; Metamorphic grade: unmetamorphosed
Individual lithologies:diabase (medium-coarse grained gabbro-quartz gabbro; chilled at margins; little altered; post-ore; cause of local deformation of ore)

(10) quartzite; (unit of Paleoproterozoic Ketyet River Group (informal name) exposed east of Kiggavik deposit); Country rock name: Middle Ketyet River Group; Metamorphic grade: amphibolite - lower
Country rock protoliths:arenite (quartz arenite, crossbedded and rippled, locally hematitic; minor oligomictic conglomerate)
Individual lithologies:orthoquartzite (contains minor metamorphic kyanite and fuchsite)
Metallogenic signatures: U
Alteration signatures: illite alteration: illite; strong chalk white; density reduced to 2.3; What was altered: metagreywacke and granite; Component: alteration halo
sericitization: sericite; with illite; density reduced 2.7 to 2.3; What was altered: metagreywacke and granite; Component: alteration halo
chlorite alteration: chlorite; pale greenish colouration; What was altered: mafic silicates in host rocks
hematization: hematite, limonite (goethite); mark solution front; What was altered: mafic minerals in host rocks and Thelon paleosol
desilication: removal of silica by mineralizing solution; What was altered: metagreywacke and granite; Component: alteration halo
secondary uranium alteration: uranophane near surface; rare at depth; What was altered: pitchblende and coffinite; Component: enriched zone - oxidized
Mineralogy: (alteration / alteration halo): chlorite
(alteration / regional alteration): illite, hematite, limonite (goethite), uranophane
(mineralization / mineralization zone): pitchblende, coffinite, pyrite, marcasite
Radiometric ages: Object dated: Mineralogy(1); Age - Ma: 1,400; Dating method: U-Pb; Concentrate: pitchblende; Source rock: uranium ore (high grade); Event dated: mineralization (early); Interpretive comment: six samples; the oldest age of 1400 Ma from a deep-seated vein in granite; a later event at 1000 Ma; Reference: 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

Object dated: Host Rocks(1); Age - Ma: 1,648; Dating method: K-Ar; Concentrate: whole rock; Source rock: metagreywacke; Formal name: Hudsonian orogeny; Event dated: metamorphism; Interpretive comment: little altered sample; an intensely altered sample yielded 1358 Ma; the data indicate argon loss; Reference: 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

Object dated: Host Rocks(2); Age - Ma: 1,563; Dating method: K-Ar; Concentrate: whole rock; Source rock: Fluorite granite; Formal name: Hudsonian orogeny; Event dated: host intrusion; Interpretive comment: little altered sample; an intensely altered sample yielded 1073 Ma; the data indicate argon loss; Reference: 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

Object dated: Country Rocks(8); Age - Ma: 1,720; +6; -6; Dating method: U-Pb; Concentrate: apatite (authigenic); Source rock: basal sandsone of Thelon Formation; Formal name: minimum age of sedimentation; Event dated: Thelon Formation deposition; Interpretive comment: apatite contains up to 700 ppm U; makes up to 7 % of sandstone, which overlies 1760 Ma old rhyolites; Reference: Miller, A. R.; Cumming, G. L.; Krstic, D., 1989: U-Pb, Pb-Pb, and K-Ar Isotopic Study and Petrography of Uraniferous Phosphate-bearing Rocks in the Thelon Formation, Dubawnt Group, Northwest Territories, Canada; Canadian Journal of Earth Sciences, Volume 26, p. 867 - 880

Object dated: Country Rocks; Age - Ma: 1,760; Dating method: U-Pb; Concentrate: zircon; Source rock: Pitz Formation; Formal name: potassic rhyolite-rapakivi granite event; Event dated: rhyolite eruption; Interpretive comment: undeformed volcanics of the youngest unit of the Dubawnt Group, deposited in post-Hudsonian grabens; Reference: Miller, A. R.; Cumming, G. L.; Krstic, D., 1989: U-Pb, Pb-Pb, and K-Ar Isotopic Study and Petrography of Uraniferous Phosphate-bearing Rocks in the Thelon Formation, Dubawnt Group, Northwest Territories, Canada; Canadian Journal of Earth Sciences, Volume 26, p. 867 - 880

Object dated: Country Rocks; Age - Ma: 1,753; +3; -2; Dating method: U-Pb; Concentrate: zircon; Source rock: Rapakivi Granite; Formal name: potassic rhyolite-rapakivi granite event; Event dated: subvolcanic intrusion; Interpretive comment: granite related to the Pitz rhyolites overlying the Christopher Island Formation trachytic volcanics; Reference: Loveridge, W. D.; Eade, K. E.; Roddick, J. C., 1987: A U-Pb Age on Zircon from a Granite Pluton, Kamilukuak Lake Area, District of Keewatin, Establishes a Lower Limit for the Age of the Christopher Island Formation, Dubawnt Group, Canada; Current Research - Geological Survey of Canada, Volume 87-2, p. 67 - 71
Deposit shape: zone of two parallel cigar-shaped lenses; Component: mineralization zone
Deposit dimensions:length: 1,800 metre
width: 300 metre
depth: 200 metre
Qualified comments: (Applies to: discovery and development) A helicopter-borne radiometric survey of the eastern Thelon basin was conducted by Urangesellschaft Canada Ltd. in 1974. It revealed a strong anomaly due to highly radioactive frost boils in an overburden covered area. Drilling in 1977 near the anomaly located the 'Lone Gull' deposit, renamed later as 'Kiggavik Main Zone'. In 1978 two smaller deposits were located about 600 m and 1200 m to the ENE of it, namely the 'Centre' and 'East' zones, respectively. During this early exploration stage a total of 25500 m in 199 holes were drilled to outline two cigar-shaped ore bodies of the Main zone. Further drill holes were added by 1989 to bring the hole-spacing at 15 m along lines 30 m apart. Geological (drill-indicated) resource estimate for the Main zone as of 1989 is 2.425 Mt averaging 0.492 % U to a depth of less than 200 m, and that for the Centre zone is 0.560 Mt averaging 0.661 % U. A preliminary mining plan proposed in February 1988 recommended open pits on the Main and Centre Zones with minable reserves of 14307 t U in 0.424 % in 3.374 Mt of ore including external dilution. A 1000 tonnes per day mill was proposed. The first production was planned from the higher grade Centre Zone pit up to 100 m depth, which could later be used for the tailings. The Main Zone pit would be about 162 m deep. An airstrip for jets and a camp for 250 persons were visualized near the open pits. The mine life was projected at 10 years. No development work has been carried out on the deposits. Further exploration within 20 km to the southwest during 1987-'88 led to the discovery of the End Grid and Andrew Lake deposits, each with resources comparable with the Kiggavik resources. In 1992 Cogema Resources Inc., now Areva Resources Canada Inc., acquired 70 % interest in, and became operator of the properties held by Urangesellschaft Canada Ltd. The company carried out further exploration of the deposits to the west-southwest along the 'Kiggavik Trend' during the mid-1990s.

(Applies to: mineralization) Principal uranium minerals in the deposit are coffinite and pitchblende. They occur mostly as disseminated granules. Coffinite surrounds pitchblende grains and in part replaces them. Pitchblende also occurs as visible colloform aggregates or in rosettes usually along or close to fractures. Aggregates of uranium minerals are frequently associated with brown iron hydroxides suggesting possible adsorption of U3O8 on the latter. Pyrite occurs as corroded grains and could have been the precursor of the iron hydroxides. Hence it may have acted as a redox control. Ore textures indicate more than one episode of uranium remobilization. Multigenerational uraninite and coffinite are associated with minor and variable amounts of galena, molybdenite, pyrite, chalcopyrite, clausthalite, and Ni, Bi and Bi-Ag tellurides, and are accompanied by anomalous contents of B and V. Outside the mineralized zone fresh pyrite occurs as disseminations and veins within the metasediments and the granite. The mineralization at the Kiggavik deposit is comparable with that of the basement-hosted examples of the Unconformity-associated deposits in the Athabasca basin. Since the Thelon Formation is eroded in the vicinity of the deposit it is not certain whether the mineralization straddled the sub-Thelon unconformity, as is the case with majority of the deposits at the sub-Athabasca Group unconformity.

(Applies to: regional stratigraphy) Geology of Schultz Lake map-sheet published in 2004 (GSC Open File 1839) has revised stratigraphy that is relevant to the local geology of the Kiggavik deposit. The metasediments that host it are regarded in that map as the uppermost unit of Neoarchean Woodburn Group, which is intruded by granites dated in the range of 2700 to 2600 Ma. The same host rocks were described earlier by explorationists as 'impure quartzite' or 'dirty quartzite', an informal unit comprised of lower metagreywacke, middle mica-rich quartzo-feldspathic beds and upper pelites with intercalated iron formation. An orthoquartzite unit near the deposit on the north side, which contains beds of chlorite-sericite schist, is described as overlying the 'impure quartzite' unit in a sequence dipping 10° to the northwest with a regional ENE strike. The revised stratigraphy on the other hand shows the orthoquartzite as a unit in the middle part of the Woodburn Group viz., stratigraphically below the host 'impure quartzite' unit. Furthermore some earlier workers have regarded the orthoquartzite as metamorphosed equivalent of the quartz arenites of Paleoproterozoic Amer Group exposed in a large belt 100 km to the north, or equivalent of the Paleoproterozoic Hurwitz Group to the south. Recent mapping northeast of Schultz Lake viz., in the Tehek Lake-Meadowbank River region, has led to distinction of the Archean orthoquartzites of the Woodburn Group from the Paleoproterozoic orthoquartzites of the Amer Group, based on the following criteria. The Archean orthoquartzites are interbedded with pyritic quartz-pebble conglomerate, chloritoid-kyanite slate and iron-formation, none of which have been described from the Amer Group. Additional field and geochronological data however are needed to establish firmly the age and regional stratigraphic relations of the host strata of the Kiggavik deposit.

(Applies to: regional structure) The ENE-trend of the mineralized fault and related fractures of the Kiggavik Main, Centre and East deposits is parallel to two major faults, namely the Thelon fault 1.5 km to the north and the Sissons Lake fault 8.5 km to the south. Both major faults post-date the Thelon Formation, and are steep, brittle and apparently normal with north side down movement. This sense of movement is also evident in the mineralized fault at the Kiggavik deposits, and is thus most likely related to the two major faults. Furthermore the block bounded by the two major faults hosts 7 deposits that define the so-called 'Kiggavik Trend', which is a 20 km long line that trends northeast and is gently convex to the northwest. Most of the faults in the area however have straight strike direction. Map of the deposit area on scale 1 : 50000 compiled by company geologists show a few other faults that trend NE and NW. It appears that the curvature of the 'Kiggavik Trend' may be more apparent than real, caused by offsets of the ENE-trending faults by intersecting faults.
Links to other databases: NORMIN; Key value: 066ASW0002
GSC U-Th File (Prasad); Key value: 9599
Geophysical-chemical signature: Signature type: Airborne Radiometrics; Response type: positive (strong)
Signature type: Geochemistry Soil / Till; Response type: positive (moderate)
Signature type: Geochemistry Lake and Stream Waters; Response type: positive (weak)
References:
Amukun, S. E., 1982
Report on Geology, Geophysics and Geochemistry Uranium Exploration Activities: 1981 Field Season (081530)
Mineral Assessment Report, Urangesellschaft Canada Ltd, Indian and Northern Affairs Canada, Publication code 081530

Beak Consultants Ltd, 1988
Project Description of the Kiggavik (Line Gull) Uranium Mine (082623)
Mineral Assessment Report, Urangesellschaft Canada Ltd, Indian and Northern Affairs Canada, Publication code 082623

Bundrock, G., 1981
From Armchair Geology to a Deposit in a New Uranium Province
In Uranium Exploration Case Histories: Proceedings of an Advisory Group Meeting, Vienna, 26-29 November 1979, Edited by Anonymous, Proceedings Series (STI/PUB), International Atomic Energy Agency, Vienna, International Atomic Energy Agency, Vienna, 584, 407 p., p. 243 - 277

Cecile, M. P., 1973
Lithofacies Analysis of the Proterozoic Thelon Formation, Northwest Territories (including Computer Analysis of
M. Sc. Thesis, M. Sc. Thesis (unpublished), Carleton University, Ottawa, 119 p..

Curtis, L.; Miller, A. R., 1980
Uranium Geology in the Amer-Dubawnt-Yathkyed-Baker Lakes Region, Keewatin District, N.W.T., Canada
In The Pine Creek Geosyncline: Proceedings of the International Uranium Symposium, Vienna, Edited by Anonymous, Proceedings of Symposium, International Atomic Energy Agency, International Atomic Energy Agency, Vienna, Austria, p. 595 - 616

Donaldson, J. A., 1965
The Dubawnt Group, Districts of Keewatin and Mackenzie (64-20)
Paper, Geological Survey of Canada, Geological Survey of Canada, Publication code 64-20

Donaldson, J. A., 1966
Geology, Schultz Lake, District of Keewatin
Geological Survey of Canada, Preliminary 7, Scale 1:250000

Donaldson, J. A., 1969
Descriptive Notes (with Particular Reference to the Late Proterozoic Dubawnt Group) to Accompany a Geological Map of Central Thelon Plain, Districts of Keewatin and Mackenzie (65 M, N W1/2, 66 B, C, D, 75 P E1/2, 76 E1/2)
Paper, Geological Survey of Canada, Publication code 68-49

Fraser, J. A.; Donaldson, J. A.; Fahrig, W. A.; Tremblay, L. P., 1970
Helikian Basins and Geosynclines of the Northwestern Canadian Shield
In Symposium on the Basins and Geosynclines of the Canadian Shield, Edited by Baer, A. J., Paper, Geological Survey of Canada, 70-40, 265 p., p. 213 - 238

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

Gall, Q., 1994
The Proterozoic Thelon Paleosol, Northwest Territories, Canada
Precambrian Research, Volume 68, p. 115 - 137

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

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

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

Hadlari, T.; Rainbird, R. H.; Pehrsson, S. J., 2004
Geology, Schultz Lake, Nunavut
Geological Survey of Canada, Open File 1839, Scale 1:250000

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

Kyser, K.; Hiatt, E.; Renac, C.; Durocher, K.; Holk, G; Deckart, K., 2000
Diagenetic Fluids in Paleo- and Meso-Proterozoic Sedimentary Basins and Their Implications for Long Protracted Fluid Histories
10, In Fluids and Basin Evolution, Edited by Kyser, K., Short Course Series Volume, The Mineralogical Association of Canada, The Mineralogical Association of Canada, 28, 262 p., p. 225 - 262

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

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

Miller, A. R.; LeCheminant, A. N., 1985
Geology and Uranium Metallogeny of Proterozoic Supracrustal Successions, Central District of Keewatin, N.W. T. with Comparisons to Northern Saskatchewan
Chapter 3, Section Other Canadian Deposits, 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. 167 - 185

Miller, A. R.; Cumming, G. L.; Krstic, D., 1989
U-Pb, Pb-Pb, and K-Ar Isotopic Study and Petrography of Uraniferous Phosphate-bearing Rocks in the Thelon Formation, Dubawnt Group, Northwest Territories, Canada
Canadian Journal of Earth Sciences, Volume 26, p. 867 - 880

Miller, A. R., 1995
Polymetallic Unconformity-related Uranium Veins in Lower Proterozoic Amer Group, Pelly Lake Map Area, Northern Thelon Basin, Churchill Province, Northwest Territories
Current Research - Geological Survey of Canada, Volume 95-1C, p. 151 - 161

Overton, A., 1979
Seismic Reconnaissance Survey of the Dubawnt Group, Districts of Keewatin and Mackenzie
Current Research - Geological Survey of Canada, Volume 79-1B, p. 397

Patterson, J. G., 1986
The Amer Belt: Remnant of an Aphebian Foreland Fold and Thrust Belt
Canadian Journal of Earth Sciences, Volume 23, p. 2012 - 2023

Prosser, E.; Hilger, W.; Wollenberg, P., 1983
Report on Uranium Exploration Activities, Field Season 1982 - Lone Gull, Sissons-Schultz Lake Area, Keewatin (081658)
Mineral Assessment Report, Urangesellschaft Canada Ltd, Indian and Northern Affairs Canada, Publication code 081658

Prosser, E.; Hilger, W.; Wollenberg, P., 1984
Diamond Drill Program, 1983 Field Season, Sissons-Schultz Lakes Area, Keewatin (081772)
Mineral Assessment Report, Urangesellschaft Canada Ltd, Indian and Northern Affairs Canada, Publication code 081772

Rainbird, R. H.; Hadlari, T., 2000
Revised Stratigraphy and Sedimentology of the Paleoproterozoic Dubawnt Supergroup at the Northern Margin of the Baker Lake Basin, Nunavut
Current Research - Geological Survey of Canada, Volume 00-1C, p. 1 - 9

Ross, G. M., 2000
Proterozoic Stratigraphy of Western Canada: A Short Review
9, In Fluids and Basin Evolution, Edited by Kyser, K., Short Course Series Volume, The Mineralogical Association of Canada, The Mineralogical Association of Canada, 28, 262 p., p. 211 - 224

Ross, G. M., 2000
Tectonics of Sedimentary Basins: A Prelude to Fluid Evolution
3, In Fluids and Basin Evolution, Edited by Kyser, K., Short Course Series Volume, The Mineralogical Association of Canada, The Mineralogical Association of Canada, 28, 262 p., p. 39 - 62

Tella, S., 1984
Geology of the Amer Lake (NTS 66H), Deep Rose Lake (NTS 66G), and Parts of the Pelly Lake (NTS 66F) Map Areas, District of Keewatin, NWT
Open File, Geological Survey of Canada, Publication code 1043, 1 maps.

Wallenberg, P., 1993
Geology and Grid Locations; Project: Sissons Schultz South (NTS 66A/4-6, B/1,8)
Urangesellschaft Canada Limited/Cogema Resources Incorporated, 93-UGC-93-09, Scale 1:50000

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

Weyer, H. -J.; Friedrich, G.; Bechtel, A.; Ballhorn, R. K., 1989
The Lone Gull Uranium Deposit - New Geochemical and Petrological Data as Evidence for the Nature of the Ore Bearing Solutions
IAEA-TC-542-/19, In Metallogenesis of Uranium Deposits: Proceedings of a Technical Committee Meeting, Vienna, 9-12 March 1987, Edited by Anonymous, Panel Proceedings Series, International Atomic Energy Agency, International Atomic Energy Agency, Vienna, Austria, IAEA-TC542, 492 p., p. 293 - 306

Wright, G. M., 1967
Geology of the Southeastern Barren Grounds (350)
Memoir, Geological Survey of Canada, Geological Survey of Canada, Publication code 350, 91 p., 1 maps.

Zaleski, E.; Pehrsson, S.; Duke, N.; Davis, W. J.; L'Heureux, R.; Greiner, E.; Kerswill, J. A., 2000
Quartzite Sequences and Their Relationships, Woodburn Lake Group, Western Churchill Province, Nunavut
Current Research - Geological Survey of Canada, Volume 2000, p. 1 - 10

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: 1986; 2.425 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: proven + probable
Grade-commodity information:U: 0.492 percent
Cutoff grade-commodity:U: 0.05 percent
weight-commodity information:U: 11,931 metric ton
Reference: 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
Percent weights allocated to deposit: 100.0%

Generated 2007-03-02 2:35:45 PM with GQuery -- 3.7 ADO (3.19/3.20/3.21 -- 2006-02-24)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada