Ontario Geological Survey
Permanent Link to this Record:
MDI52L07NW00003
| Record Name(s) | Werner Lake Cobalt - 1979, Kenora Prospectors and Miners Property - 1928, Norman B. Davis - 1932 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1979-May-05 |
| Date Last Modified | 2022-Dec-05 |
| Created By | |
| Revised By |
Primary Commodities: Cobalt
Secondary Commodities: Copper, Nickel, Gold
Township or Area: Werner Lake Area
Latitude: 50° 28' 7.27" Longitude: -94° 58' 12.41"
UTM Zone: 15 Easting: 360190.19 Northing: 5592597.55 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52L07NW
Point Location Description: Precise
Location Method: Conversion from MDI
Access Description: The Werner Lake Property has to be accessed from Manitoba, by a secondary gravel road that continues from Manitoba Provincial Road 315 at the Manitoba-Ontario border east to the past-producing Gordon Lake Nickel-Copper Mine.
1920: showing was discovered by Mr. Carleson, who carried out sampling. Samples assayed 2.08% Co over 3.0 m. 1925: sampling. 1928: claims staked by Kenora Prospectors and Miners Ltd., who conducted trenching and sampling. Shaft sunk to 10.7 m. Mineralized zone 30 m long by 1.8 to 3.7 m wide exposed. 1932: N.B Davis leased the property. 30 m open cut developed. 71 tonnes grading 18-20% Co shipped for processing. 1940-44: production initiated by Ventures Ltd (later Falconbridge). 1943-44: Noranda staked claims in the area and conducted DD. Operation ceased in 1944. 1945-52: INCO acquired the property. 1957: Falconbridge drilled 914 m of DD in unknown number of holes. 1995: Property optioned to Canmine. 1994-1999: Canmine conducted ground and airborne geophysical surveys and drilled 22,860 m in 160 holes. 2003: Canmine declares bankruptcy. Commerce Capital Inc. acquired title to the mineral rights and associated surface rights of the property. 2009: Puget Ventures Inc acquired the property and drilled 4 DDH totalling 1403 m. 2010: Puget drilled 33 DDH totalling 7565.3 m, targeting the Werner Lake and West Werner Lake Co-Ni-Cu deposits. 2011: Puget became Global Cobalt Corp. through a reverse takeover. 2016: Global Energy Metals Corp. acquired the property and reviewed historic data. 2018: Global Energy Metals released an NI 43-101 report.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52L07NW0025 | 20000005301 | 20000005301 |
Province: Superior
Subprovince: English River
Geological Age: Archean
Feb 09, 2011 (C Ravnaas) - The Werner Lake Geologic Belt is part of the Archean English River Subprovince of the Superior Geological Province in Ontario. The area is underlain by metasedimentary migmatite intruded by syn- to late tectonic felsic intrusive rocks. The belt is defined by a deep-seated fault that is believed to have ruptured the Superior Province. The fault zone is up to 500 metres wide and dips near vertically. The entire area of the fault has been termed the “Cu-Ni-PGE zone. Ultramafic intrusions occur as small discontinuous pods along the Cu-Ni-PGE Zone fault. These intrusions are up to 100 metres in strike length and are narrow, i.e., tens of metres wide. They rarely outcrop andare only observed smeared on fault walls. The intrusions consist of black, fine-grained, talcose serpentinite with 0-10%, disseminated, fine-grained chalcopyrite, pyrrhotite, nickeliferous pentlandite and pyrrhotite, and usually some magnetite. Reference: Harper, G. Report on Werner Lake Properties for Puget Ventures Ltd. July 2008.
| Rock Type | Rank | Composition | Texture | Relationship | Amphibolite | 1 | Host |
|---|
Feb 09, 2011 (C Ravnaas) - An amphibolite layer that hosts the West Cobalt, Werner Lake Minesite, and Eastern Shallows cobalt deposits is part of the gneissic stratigraphy on the north side of the deep-seated fault. The amphibolite averages 10 metres wide and extends for tens of kilometres. Disseminated chalcopyrite (up to 10%), pyrrhotite (up to 10%), pyrite (up to 5%), and cobaltite (1%) occur within the altered assemblage. Welldeveloped alteration assemblages extend as a halo approximately 25 metres around the cobalt deposits. Canmine's geologic staff developed a model and theory of metallogenesis which suggested that two parallel zones of mineralized rocks are present with one being richer in cobalt + copper and the other in nickel with associated platinum group elements. Reference: Harper, G. Report on Werner Lake Properties for Puget Ventures Ltd. July 2008.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 4 | Cobaltite | Economic | Ore |
Dec 22, 2014 (C Ravnaas) - The Werner Lake Minesite Deposit consists of three known lenses. Lens 1 outcrops, was previously partially mined, and strikes over a distance of up to 40 metres. Lens 2 occurs at a vertical depth of 24metres, and strikes up to 40 metres in length. Lens 3 occurs at a vertical depth of approximately 150metres, andesite least 20 metres in strike length. The lenses strike east-west, dip vertically, and rake flat to gently east. Horizontal thicknesses in the centre of the lenses are up to 6 metres. Mineralization in the Werner Lake Minesite Deposit is controlled by a major northwest-trending, steeply east-dipping block fault. Tension fractures that strike perpendicular to the fault in amphibolite in the east wall of the block fault host the lenses. Chalcopyrite, pyrrhotite, pyrite, and cobaltite occur in gabbroic pegmatite and garnet-biotite-amphibole magnetite gneiss. Low-grade cobalt mineralization and higher-grade copper mineralization form part of the alteration shell in the amphibolite host rocks around the high-grade cobalt lenses. Gold mineralization occurs in the central part of the lenses, and in the copper-rich portion of the alteration shell. Canmine excavated 3,382 tonnes of cobalt-bearing ore from the former Werner Lake Cobalt Mine site on the Werner Lake property. This ore was shipped by truck and rail to Falconbridge Limited's facility in Sudbury, Ontario for processing. The Werner Lake West Cobalt and Minesite Deposits had undiluted reserves and resources totalling 232,316 tonnes at 0.36% cobalt, 0.28% copper and0.011 oz/t gold. The breakdown of each category is as follows: Proven reserves total 140,031 tonnes of 0.47% cobalt, 0.26% copper and 0.008 oz/t gold; Probable reserves total 40,829 tonnes of 0.25% cobalt, 0.43% copper and 0.030 oz/t gold; Indicated resources total 51,456 tonnes of 0.13% cobalt, 0.20% copper and 0.003 oz/t gold; Inferred resources total 869,378 tonnes of 0.29% cobalt, 0.28% copper and 0.011 oz/t gold. The Eastern Shallows deposit contains total indicated resources of 63,517 tonnes with 0.29% cobalt and 0.63% copper. The Big Zone deposit contains total indicated resources of 172,396 tons with 0.26% copper, 0.62% nickel, 0.02% cobalt, 0.009 oz/t platinum and 0.030 oz/t palladium. Reference: Harper, G. Report on Werner Lake Properties for Puget Ventures Ltd. July 2008. Canmine drilling intersected several mineralized zones including: 1.48% Co, 0.27% Cu and 0.03 opt Au over 4 m; 0.29% Co, 0.66% Cu over 7.6 m; and 0.18% Co, 0.11 % Cu over 8 m. Mineralization includes cob, cpy, py with secondary ery and mal. The zone occurs within metasedimentary migmatite. The zone is believed to be a stratabound skarnoid deposit.
Dec 22, 2014 (Therese Pettigrew) - On the Werner Lake property, high-grade cobalt mineralization occurs in stacked lenses that occupy tensional areas intruded by gabbroic pegmatites to produce skarnoid assemblages. These tensional areas occur as sigmoidal folds in larger drag folds and in tensional fractures on the east side of major block faults. They occur in rare swarms over a distance of approximately 10 km, extending from the Eastern Shallows Cobalt Deposit on the east side of Gordon Lake to the West Cobalt Deposit 500 metres west of the Werner Lake Minesite. Individual pegmatite dykelets are tens of centimetres wide and unusually up to 5 m wide. They are discontinuous, rootless, pinch-and-swell features, with individual boudins approximately 25 m in length. Chalcopyrite, pyrite, pyrrhotite and cobaltite are hosted by biotite-amphibole-garnet gneiss (Harper, 2011). Two types of cobalt mineralization are reported by Ferreira et al (1998) to occur: 1) cobalt in cobaltite and 2) cobalt in the linnaeite and bravoite group that rims pyrite crystals and forms lamellae within pyrite. The cobalt deposits exhibit a well-developed zonation pattern of intense alteration. From the centre outward, the zonation pattern is as follows: 1) high grade, massive cobaltite (up to 22% Co); 2) cobaltite + chlorite ± chalcopyrite + pyrite + magnetite ± linnäeite + pyrrhotite + amphibole + pyroxene + calcite; 3) biotite + garnet + chalcopyrite + pyrite + magnetite ± linnaeite; 4) biotite + garnet + magnetite; and 5) unaltered amphibolite. At Werner Lake the drilling returned significant base metal intercepts hosted within a folded, moderately strained to highly sheared, mafic-ultramafic volcanic-intrusive assemblage. Where best preserved the ultramafic is a two pyroxene, amphibole, plagioclase, lherzolitic peridotite. Locally pyroxenite, amphibolite and gabbro were recognized that also host appreciable sulphides. Highest sulphide concentrations are >5% with varying proportions of pyrite, chalcopyrite, cobaltian pyrite, cobaltite and pentlandite. Semi-massive sulphides, which historically returned high cobalt values were rarely intercepted except over 10 – 20 cm widths. Mineralized widths for cobalt-rich material are relatively narrow, in the order of 1-3 metres (Harper, 2011). In the 2010 drilling, Co values ranged from 0.004-12.48% Co, averaging 0.176%. Cu values ranged from 0.02-1.8% Cu, averaging 0.36%. Ni values ranged from 0.01-0.21%, averaging 0.03%. Channel sample taken in early 1920s by W.K. McNeill, the Provincial Assayer, returned values of 4.20% Co (Derry, 1931). The Werner Lake Old Mine Deposit lenses strike east-west, dip vertically, and rake flat to gently east. Horizontal thicknesses in the centre of the lenses can reach 3.5 m. Mineralization is controlled by a major northwest-trending, steeply east-dipping block fault. Tension fractures that strike perpendicular to the fault in amphibolite, in the east wall of the block fault, host the lenses. Chalcopyrite, pyrrhotite, pyrite, and cobaltite occur in gabbroic pegmatite and garnet-biotite—amphibole- magnetite gneiss. Low-grade cobalt mineralization and higher-grade copper mineralization form part of the alteration shell in the amphibolite host rocks around the high-grade cobalt lenses. Gold mineralization occurs in the central part of the lenses, and in the copper-rich portion of the alteration shell (Desautels and Daigle, 2018).
| Rank | Classification |
|---|---|
| 1 | Exhalative |
| 1 | Hydrothermal |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Werner Lake Deposit | 2018 | Inferred Mineral Resource | 6300 | 2018 NI 43-101 | at a 0.25% Co cut-off for 67,000 lb contained Co | Cobalt 0.48 %, Copper 0.14 % |
| Werner Lake Deposit | 2018 | Indicated Mineral Resource | 57900 | 2018 NI 43-101 | at a 0.25% Co cut-off for 653,000 lb contained Co | Cobalt 0.51 %, Copper 0.25 % |
| Werner Lake Cobalt Minesite | 2001 | Inferred Mineral Resource | 55068 | Global Cobalt website (http://globalcobaltcorp.com/projects.php?bp=1856) | not NI 43-101 compliant | Cobalt 0.63 %, Copper 0.24 %, Gold 0.011 oz/T |
| Werner Lake | 1998 | Inferred Mineral Resource | 507412 | Puget Ventures Inc., press release, April 2, 2009 | Not NI 43-101 Compliant. Numbers from a Canmine 1998 internal report. Inferred Resources: 507 412 t grading 0.31% Co and 0.29% Cu | Cobalt 0.31 %, Copper 0.29 % |
| Werner Lake | 1998 | Proven | 140031 | Puget Ventures Inc., press release, April 2, 2009 | Not NI 43-101 Compliant. Numbers from a Canmine 1998 internal report. Proven Resource: 140 031 t grading 0.47% Co and 0.26% Cu | Cobalt 0.47 %, Copper 0.26 % |
| Werner Lake | 1998 | Probable | 40829 | Puget Ventures Inc., press release, April 2, 2009 | Not NI 43-101 Compliant. Numbers from a Canmine 1998 internal report. Probable Reserves: 40 829 t grading 0.25% Co and 0.43% Cu | Cobalt 0.25 %, Copper 0.43 % |
| Werner Lake | 1998 | Indicated Mineral Resource | 51456 | Puget Ventures Inc., press release, April 2, 2009 | Not NI 43-101 Compliant. Numbers from a Canmine 1998 internal report. Indicated Resource: 51 456 t grading 0.13% Co and 0.20% Cu | Cobalt 0.13 %, Copper 0.2 % |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1996 | 3382 | 2018 NI 43-101 | No commodities reported. | |
| 1944 | 2955 |
Cobalt 123386 Pounds |
2018 NI 43-101 | |
| 1932 | 63 |
Cobalt 20000 Pounds |
2018 NI 43-101 | 70 short tons containing approximately 20,000 lb cobalt |
Book - GAC 1982, FTGUIDEBOOK,TRIP 9,P26-28
Publication Number: N/A Date: 1996
Author:
Publisher Name:
Location:
Publication - Amended NI 43-101 Resource Estimate for Werner Lake Cobalt Project
Publication Number: 2018 NI 43-101 Date: 2018
Author: Desautesl, P., Daigle, P.J.
Publisher Name: AGP Mining Consultants for Global Energy Metals Corp.
Location: SEDAR
Part - Mines of Ontario in 1930
Publication Number: ARV40-01.002 Page: 63 Date: 1997
Author: Sinclair D.G., Cleland R.H., Keeley E.C., Cooper D.F., Webster A.R.
Publisher Name: Ontario Dept. of Mines
Location:
Book - Concentration tests by flotation on a sample of mill tailing from the Werner Lake Cobalt Mine, near Kenora, Ontario; Canada Mines Branch, Ore Dressing and Metallurgical Laboratories Investigation Report 1619
Publication Number: IR 1619 Page: 75 Date: 1944
Author: Canada Mines Branch, Ore Dressing and Metallurgical Laboratories
Publisher Name: Canada Mines Branch
Location: https://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/shorte.web&search1=R=323150
Mono - Copper, nickel, lead, and zinc deposits in Ontario
Publication Number: MDC001 Page: 37 Date: 1954
Author: Thomson J.E., Carlson H.D., Ferguson S.A., Pye E.G., Savage W.S.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of the Werner Lake-Rex Lake area
Publication Number: ARV66-04 Page: 25 Date: 1997
Author: Carlson H.D.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Page: 38 Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Werner Lake Mineral Properties, Kenora Mining Division, Ontario
Publication Number: Date: 2011
Author: Harper, G.
Publisher Name: Puget Ventures Inc.
Location: Global Cobalt website
Publication - Calculation of Ore Reserves and Resources of the West Cobalt and Minesite Deposits, Werner Lake Cobalt Project
Publication Number: Date: 1998
Author: Ferreira, W. S., Xiong, J. and Ferreira, K
Publisher Name: Canmine Resources Corp.
Location: internal company report
Part - Geology of the area from Minaki to Sidney Lake, District of Kenora
Publication Number: ARV39-03.002 Page: 39-40 Date: 1998
Author: Derry D.R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Precambrian Geology, Werner Lake-English River Area
Publication Number: M2516 Scale: 1:50,000 Date: 1997
Author: Beakhouse G.P.
Publisher Name: Ontario Geological Survey
Location:
Map - Werner Lake-Rex Lake area (west sheet), District of Kenora (Patricia Portion), Ontario
Publication Number: M1957-02 Scale: 1:31,680 Date: 1997
Author: Carlson H.D.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Compilation series, Lower English River sheet, Kenora District
Publication Number: P2394 Scale: 1:126,720 Date: 1981
Author: Thurston P.C., Bartlett J.R.
Publisher Name: Ontario Geological Survey
Location:
Map - Detailed Precambrian Geology, Alteration and Mineralization of the Almo Lake Area, English River Subprovince
Publication Number: P3313 Scale: 1:4,800 Date: 1995
Author: Parker J.R.
Publisher Name: Ontario Geological Survey
Location:
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