Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52M01SE00013

Record: MDI52M01SE00013

General

Mineral Record Identification
Record Name(s) Rowan Project - 2022, West Red Lake Project - 2012, Rowan Lake Main Zone - 2007, Lake Rowan A and B Veins - 1979, Rowan Mine - 1934
Related Record Type Simple
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 1979-Jun-06
Date Last Modified 2024-Apr-29
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Todd

Latitude: 51° 3' 59.16"    Longitude: -94° 7' 7.55"

UTM Zone: 15    Easting: 421610   Northing: 5657808    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52M01SE

Point Location Description: Shaft location recorded in 2016 NI 43-101 report, converted to NAD83

Location Method: Data Compilation

Access Description: Red Lake to Nungessor Road - Pine Ridge road - Mount Jamie Road



Exploration History

1928: Rowan-Hall Sydicate discovered gold on “Discovery Hill”. 1934-37: Lake Rowan Gold Mines Limited conducted trenching, geological mapping, diamond drilling (locations and total length uncertain). 1937: Adit driven, 187 m along vein at 30.5 m level. 1937-39: Shaft to 132 m; levels at 76 m, 122 m established; about 300 m of new lateral workings established. 1945: Lake Rowan Mines Limited conducted mapping and drilled 56 DDH. 1950: Rowan Consolidated Mines Limited conducted site rehabilitation, drilled 8 surface x-ray holes, and conducted an underground program drifting to the east on level 3 in the Rowan Vein System. 1958: Rowan Consolidated drilled 7 DDH totalling 1340.5 m. 1974: Rowan Gold Mines Limited (subsidiary of Dickenson Mines Limited). 1975: Cochenour Explorations completed mag and HLEM surveys. 1981: Goldquest Exploration Inc. acquired the property and transported stockpiled material to the A.W. White mine. 1982: Goldquest conducted HLEM and magnetic surveys. 1983: Goldquest conducted a radiometric survey, trench stripping, geological mapping and lithgeochemistry. 1984: Goldquest drilled 16 DDH totalling 3622.76 m and did a bulk mine test, then flooded below the adit level. 1985: Goldquest drilled 51 DDH totalling 4539.45 m. 1987: Goldquest drilled 8 DDH totalling 1822.1 m. Dickenson Mines Ltd. evaluated the property. 1988. United Reef Petroleum Ltd. evaluated the property. 1989: Chevron Minerals Ltd. signed a JV agreement with Goldquest and completed geological mapping and rock sampling. 1990: Chevron drilled 8 DDH before dropping the option. 1993: Goldquest drilled 3 DDH. 1994: Goldquest amalgamated with Goldcorp. 1997: Goldcorp Inc. drilled 2 DDH totalling 995.26 m. 2000: Goldcorp completed helicopter borne mag, electromag, VLF and radiometric surveys. 2001: Goldcorp drilled 8 DDH totalling 1974 m on the Martin Bay area and 4 DDH totalling 1699 m on the Rowan Shaft. 2006: King’s Bay Gold Corp. optioned the property from Goldcorp and drilled 23 DDH totalling 4846 m before dropping the option. 2007-8: Hy Lake Gold optioned Rowan property from Goldcorp and completed 15 DDH totalling 8316.9 m. 2009: Hy Lake conducted infill sampling on historic core. 2012: Hy Lake Gold Inc. changed the company name to West Red Lake Gold Mines Inc. 2013: West Red Lake Gold Mines drilled 9 DDH totalling 3283 m. 2014: West Red Lake Gold Mines drilled 10 DDH totalling 1416 m. 2016: West Red Lake Gold Mines released an NI 43-101 report on the property. 2021: West Red Lake Gold Mines Inc. completed 20 drill holes, totalling 3669 m over a 200 m strike length. Additionally, 45 channel samples were located in 45 locations. 2022: West Red Lake Gold Mines Ltd. completed a 4189 m drill program over 13 holes targeting the Rowan, NT and Porphyry Hill at the property. Additionally, the company completed an NI 43-101 technical report with an updated mineral resource estimate (Kita 2022). 2023: West Red Lake Gold Mines Ltd. acquired the remaining 28% of the property from Evolution Mining and now has 100% ownership.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.40304 20000003800 20000003800
2.38534 20000005495 20000005495
2.21592 52M01SE2008 52M01SE2008
2.4883 52M01SE9965 52M01SE9965
52M01SE0024 20000005312 20000005312
2.53517 20000014758 20000014758

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Red Lake

Geological Age: Archean  

Metamorphism Type: Regional

Metamorphism Grade: Amphibolite



Geology Comments

Dec 07, 2005 (K R Kettles) - GEOLOGICAL DESCRIPTION: The shaft area contains the A and B veins that are in reality one structure that has been traced 275 m and three offshoots, the C, D and E veins. The A/B vein strikes N75 deg. E to N80 deg.E and its dip, although variable is very steep toward the south. Veins C and D (carrying little gold) and vein E lie within the steep-dipping regional foliation that strikes east-west. The veins are hosted mainly in intermediate volcanic breccia and mafic lava, and gold values are absent where the main fracture zone crosses a 'turkey track' feldspar diorite porphyry dike east of the shaft. The main vein is typically 25 cm wide although in places it bulges to 1 m. The main vein consists of fractured quartz, containing appreciable amounts of pyrite and pyrrhotite, and small amounts of sphalerite, chalcopyrite and galena, plus high gold values. In places small stringers parallel the main vein and carry gold. DEPOSIT DESCRIPTION: This auriferous quartz vein has been tested by diamond drilling and underground development to a depth of 122 m. Four blocks of ore have been outlined, one of which is open to the east end at depth.


Apr 28, 2016 (Therese Pettigrew) - The gold mineralized zones lie within a regional shear structure, the Pipestone Bay-St Paul Deformation Zone, which trends approximately 105-110 degrees and crosses the center of the property (Archibald et al., 2016).




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Basalt Contains
Intermediate lava flow-unsubdivided 2 Andesite Near
Feldspar Porphyry 3 Feldspar Porphyry Diorite Adjacent
Vein 4 Quartz Host

Lithology Comments

Dec 07, 2005 (K R Kettles) - The shaft area contains the A and B veins that are in reality one structure that has been traced 275 m and three offshoots, the C, D and E veins. The A/B vein strikes N75 deg. E to N80 deg.E and its dip, although variable is very steep toward the south. Veins C and D (carrying little gold) and vein E lie within the steep-dipping regional foliation that strikes east-west. The veins are hosted mainly in intermediate volcanic breccia and mafic lava, and gold values are absent where the main fracture zone crosses a 'turkey track' feldspar diorite porphyry dike east of the shaft. The main vein is typically 25 cm wide although in places it bulges to 1 m. The main vein consists of fractured quartz, containing appreciable amounts of pyrite and pyrrhotite, and small amounts of sphalerite, chalcopyrite and galena, plus high gold values. In places small stringers parallel the main vein and carry gold. This auriferous quartz vein has been tested by diamond drilling and underground development to a depth of 122 m. Four blocks of ore have been outlined, one of which is open to the east end at depth.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
2ChalcopyriteEconomicOre
3GalenaEconomicOre
4PyriteEconomicOre
5PyrrhotiteEconomicOre
6SphaleriteEconomicOre
1QuartzEconomicGangue
QuartzAlterationSilicification1UnknownDisseminated
ChloriteAlterationHydrothermal2UnknownDisseminated
CarbonateAlterationCarbonatization3UnknownDisseminated

Mineralization Comments

Mar 19, 2012 (K R Kettles) - MDI1 DATA: ESTIMATED RESERVES (1939): 10,900 TONS OF ORE @ 0.657 OPT AU OUTLINED IN 4 BLOCKS According to Gill (1939), 10,900 tons of ore with an average grade of 0.657 oz/ton (22.525 g/tonne) Au have been outlined in 4 blocks. The average thickness is 48.26 cm. It should be noted that block 4 appears to be open to the east and downwards, and block 3 appears open at depth (Lake Rowan Gold Mines Limited, circa 1939). 2007: Eight DDH targeted this area and underground workings, examples of assays returned: 11.58 g/t Au over 1.43 m, 40.8 g/t Au over 3.4 m.


Apr 28, 2016 (Therese Pettigrew) - In general, gold mineralization occurs as visible millimetre scale blebs in quartz veins, veinlets and stockworks. There appears to be a bias towards folded/sheared lithological contacts often involving felsic porphyries and/or iron formations. When units of differing competencies are deformed, voids can be created at or near their contacts and gold-bearing silica can later fill and seal these openings. Since the gold mineralization process appears late, any of the extrusive geological units can be a host for gold mineralization. Although the quartz veins host the gold, gold grades within these veins are often erratic and unpredictable. The best indicator is the presence of visible gold itself but even so the tendency for the gold to occur in nuggets can lead to misleading results from assays both positively and negatively. The wall rock adjacent to the quartz veins is generally barren. The Rowan Vein System has been the focus of the majority of exploration on the West Red Lake Project since the initial discovery of 4 sub-parallel narrow veins on surface at “Discovery Hill”. Since then these veins have been drifted upon from underground on 3-levels and extensively drilled. The Rowan Vein System consists of generally east-west trending narrow, sub-vertically dipping quartz veins near the shaft and the extension of these veins toward the east. The best gold grades often occur when course and visible native gold is present. This occurs within distinct 10 to 30 cm up to a metre of bluish to grey, glassy quartz veins/stringer zones. Rarely do these zones exceed 60 cm wide and broad zones of diffuse silicification have generally not been found. Trace to 1% pyrite and pyrrhotite is common within these veins/stringers. Less common but a better positive indicator of gold grade is the occurrence of sphalerite, galena, arsenopyrite and chalcopyrite. Generally total sulphides make up less than 2%. Gold mineralization in the Rowan mine is confined to a number of simple quartz veins less than 20 cm thick, which have been traced discontinuously for several hundred metres. A total of nine separate major vein systems have been recognized to date. These systems form en-echelon array trending 075-090 degrees and dissipate towards the west and with depth. Towards the east, the vein system appears to terminate abruptly. Within individual veins, the potential ore occurs in shoots where the veins thicken to a maximum known width of one metre. Such shoots typically measure 1m x 25m x 150m and plunge 45 degrees to the east (Archibald et al., 2016).



Alteration Comments

Dec 07, 2005 (K R Kettles) - The wallrocks are silicified, and immediately next to the veins are altered to carbonate and chlorite (Bishop, 1934).




Mineral Record Details

Classification
RankClassification            
1 Hydrothermal
1 Lode (Gold)
1 Vein
Characteristics
Rank Characteristic            
1 Sheared
1 Vein

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Vein

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Unknown

Site Visit Information

Date: Feb 09, 1997

Geologist: K R Kettles

Notes: N/A



Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Rowan Mine Deposit 2024 Inferred Mineral Resource 410794 West Red Lake Gold Mines Ltd., news release, April 26, 2024. 410,794 tonnes at 8.76 g/t Au for 115,719 oz Au. Gold 8.76 g/t
Rowan Mine Deposit 2024 Indicated Mineral Resource 476323 West Red Lake Gold Mines Ltd., news release, April 26, 2024. 476,323 tonnes at 12.87 g/t Au for 195,745 oz Au. Gold 12.87 g/t
Rowan 2022 Inferred Mineral Resource 2790700 Technical Report and Resource Estimate on the West Red Lake Project dated December 13, 2022. 2 790 700 tonnes at 9.2 g/t Au for 827 462 oz Au Gold 9.2 g/t
Rowan Mine Property 2016 Inferred Mineral Resource 4468900 2016 NI 43-101 4,468,900 tonnes at 7.57 g/t Au for 1,087,700 oz Au Gold 7.57 g/t
A, B, C and D Zones 1939 Unclassified 98890 OFR 5558, P 650; OFR 6180, Table 14: Assessment file - Bishop 1939 Zones C and D open at depth circa 1939 Grade: 22.5 g/t Au (10 900 tons of 0.657 opt Au) Gold 22.53 g/t
Production Data
Year Tonnes Commodities Reference Comment
1988 11814 Gold 1298 Ounces
OFR6180, p. 3 Total production from 1986-1988 was 13,023 short tons milled, produced 1298 oz Au at a grade of 0.10 oz/t Au

References

Publication - Technical Report and Resource Estimate on the West Red Lake Project

Publication Number: 2022 NI 43-101 Date: 2022

Author: Kita, J. 2022

Publisher Name: John Kita

Location: SEDAR


Publication - Technical Report and Resource Estimate on the West Red Lake Project

Publication Number: 2016 NI 43-101 Date: 2016

Author: Archibald, J.C., Bevan, P., Kita, J.

Publisher Name: West Red Lake Gold Mines Inc.

Location: SEDAR


Map - Todd Township, Kenora District

Publication Number: M2406 Scale: 1:12,000    Date: 1978

Author: Riley R.A.

Publisher Name: Ontario Geological Survey

Location:


Map - Geological series, Todd Township, District of Kenora (Patricia Portion)

Publication Number: P1052 Scale: 1:12,000    Date: 1975

Author: Riley R.A.

Publisher Name: Ontario Division of Mines

Location:


Map - Precambrian Geology, Pipestone Bay

Publication Number: P3223 Scale: 1:50,000    Date: 1993

Author: Stone D., Atkinson B.T., Fogal R.I.

Publisher Name: Ontario Geological Survey

Location:


Map - Compilation series, Red Lake sheet, Kenora District

Publication Number: P2385 Scale: 1:126,720    Date: 1981

Author: Thurston P.C., Bartlett J.R.

Publisher Name: Ontario Geological Survey

Location:


Map - Geology and gold mineralization, Red Lake greenstone belt

Publication Number: P3107 Scale: 1:50,000    Date: 1991

Author: Durocher M.E., Burchell P.S., Wallace H., Andrews A.J., Hugon H., Atkinson B.T.

Publisher Name: Ontario Geological Survey

Location:


Map - Red Lake sheet, District of Kenora, geological compilation series

Publication Number: P0355 Scale: 1:126,720    Date: 1997

Author: Ferguson S.A., Brown D.D.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Red Lake-Birch Lake sheet, geological compilation series, Kenora District

Publication Number: M2175 Scale: 1:253,440    Date: 1970

Author: Ferguson S.A., Davies J.C., Brown D.D., Pryslak A.P.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Geology and mineral deposits of the Red Lake area

Publication Number: ARV49-02 Page: 149-152  Date: 1998

Author: Horwood H.C.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay

Publication Number: MDC013 Page: 229  Date: 1971

Author: Ferguson S.A., Groen H.A., Haynes R.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2

Publication Number: OFR5558 Page: 649-650  Date: 1987

Author: Durocher M.E., Burchell P.S., Andrews A.J.

Publisher Name: Ontario Geological Survey

Location:


File - Red Lake Resident Geologists Files

Publication Number: RGF 1939 Date: 1939

Author: Gill

Publisher Name:

Location: Red Lake RGP


File - Red Lake Resident Geologists Files

Publication Number: RGF RL Date: 1939

Author: Lake Rowan Mines Limited

Publisher Name:

Location: Red Lake RGP


Map - Red Lake area [west sheet], District of Kenora (Patricia Portion), Ontario

Publication Number: ARM49A Scale: 1:31,680    Date: 1997

Author: Horwood H.C.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Red Lake gold area, District of Kenora, Ontario (Patricia Portion)

Publication Number: ARM36D Scale: 1:63,360    Date: 1998

Author: Bruce E.L., Hawley J.E.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Red Lake gold area, District of Patricia, Ontario

Publication Number: ARM35E Scale: 1:126,720    Date: 1997

Author: Bruce E.L.

Publisher Name: Ontario Dept. of Mines

Location:


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