Ontario Geological Survey
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MDI52N04SW00339
| Record Name(s) | McKenzie Red Lake Gold Mine-North & West Mine Zone - 1987, McKenzie Mine - North & West Mine Zones - 1987, Little Long Lac- McKenzie North & West Zones - 1987 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1997-Jan-29 |
| Date Last Modified | 2023-Mar-24 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Dome
Latitude: 51° 4' 48.85" Longitude: -93° 49' 33.79"
UTM Zone: 15 Easting: 442136.655 Northing: 5659072.017 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N04SW
Point Location Description: Precise/SHAFT
Location Method: Data Compilation
1925: McNeeley Red Lake Holdings exposes the 'Main Shear' on surface. 1931: Coniagas Mines options property and completes diamond drilling. 1933: McKenzie Red Lake Gold Mines takes over property, sinks shaft, drifts, and does cross cuts. 1935: Mill comes into operation. 1935-1940: 'Main Shear' developed down to 375 m. 1940: North Mine Zone discovered, Main Shear developed to 480 m. 1940-44: North Mine Zone developed down to 315 m. 1951-62: North Mine Zone developed down to 720 m. 1956-1982: Little Long Lac Gold Mines owns property. 1962: West Mine Zone discovered . 1962-63: The 'West Mine Zone' was explored by diamond drilling (37 holes) and a limited amount of drifting, crosscutting, and raising on the 325, 435, 480, and 585 m levels. Work was done by McKenzie Red Lake Gold Mines. 1966: Mine ceases operation due to exhaustion of ore reserves. 1966-82: idle. PRODUCTION 1935-66: 651,544 OZ AU, 181,386 OZ AG FROM 2,353,833 T OF ORE(0.277 OPT AU,0.08 OPT AG), 3 MINE ZONES INCLUDE: SOUTH (MAIN SHEAR,HANGING WALL FRACTURES,NO.2 SHEAR),NORTH (NORTH VEIN), WEST.
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Red Lake
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (K R Kettles) - The North Mine Zone is located in the NE part of the McKenzie-Gold Eagle composite augite diorite-granodiorite stock, while the West Mine Zone is located in the western part. The North Mine Zone (NMZ) is located 120 to 180 m N-NE of the Main Shear, and in plan view is crescent shaped, with the southern part striking N-S and the central and northern parts striking NE. The NMZ occurs in a band of augite diorite up to 150 m wide, which is enclosed in granodiorite. The rocks in the central part of the augite diorite band have been highly sheared , altered, and intruded by pre-ore diorite, and post-ore lamprophyre dikes respectively. This zone of shearing, alteration and dike intrusion ranges in width from 60 to 20 m, strikes N 5 degs E to N 35 degs E and dips 30 to 55 degs NW. Gold mineralization occurs in narrow , sinuous and irregular lenses containing numerous, parallel, auriferous quartz stringers and veins. The ore lenses are localized within (A) shear zones in augite diorite, (B) silicified zones in augite diorite, and (C) along contacts between augite diorite and pre-ore diorite dikes. The zone of shearing, alteration, and dike intrusion extends into the volcanic and sedimentary rocks west and east of the stock, but does not contain any ore lenses in these rocks. The West Mine Zone (WMZ) occurs along or in close proximity to the contact of the stock with the adjacent felsic volcanics. It consists of a zone of shearing, alteration and quartz veining. The zone strikes N 20 degs E, and has an average dip of 60 degs NW. It has a strike length of 660 m and has been traced down dip from the 375 m level for 300 m. The zone pinches and swells considerably along strike, and with depth. Gold mineralization occurs in discontinuous stringers and veins in the shear zone along the contact, and in subparallel quartz veins located 18-36 m within the massive augite diorite. The sheared augite diorite between the quartz veins and stringers is also auriferous.
| Rock Type | Rank | Composition | Texture | Relationship | Diorite | 1 | Augite Diorite | Band In A Stock | Contains |
|---|---|---|---|---|
| Vein | 2 | Quartz | Stringers And Veins | Host |
| Mylonite/Fault Gouge/Pseudotachylite | 3 | Altered | Shear Zone | Contains |
| Felsic lava flow-unsubdivided | 4 | West Mine Zone Only | Adjacent |
Dec 07, 2005 (K R Kettles) - Within the shear zone are augite diorite, and mafic dikes consisting of pre-ore diorite and post-ore lamphrophyre.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Scheelite | Economic | Ore | ||||
| 3 | Arsenopyrite | Economic | Ore | ||||
| 4 | Pyrite | Economic | Ore | ||||
| 5 | Chalcopyrite | Economic | Ore | ||||
| 6 | Galena | Economic | Ore | ||||
| 7 | Sphalerite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Carbonate | Alteration | Carbonatization | 1 | ||||
| Silica | Alteration | Silicification | 2 | ||||
| Sericite | Alteration | Sericitization | 3 |
Dec 07, 2005 (K R Kettles) - The 'North Mine Zone' has been developed in underground workings for 50 m along strike, and between 90 and 720 m in depth. Ore lenses within the zone strike N 5 degs E to N 30 degs E and dip 30 to 55 degs NW. The ore lenses range from 6 to 150 m in length and between 1.5 to 4.5 m in width. The down dip extent of ore lenses is approximately the same as the strike length. Overlapping ore lenses maintain the down dip continuity of the zone. The best ore lenses occur in the shallow dipping sections of the structure. The quartz veins consist of light grey to white quartz, with minor amounts of scheelite, carbonate, and sulphide minerals. The auriferous veins within the West Mine Zone (WMZ) vary from 24 to 120 m in length, along strike and with depth. Gold values within most of the quartz veins and stringers are very erratic. One small oreshoot was outlined in the above zone. It consists of a quartz vein 21 m in length, having an average width of 0.8 m, and extending between the 375 and 435 m levels. Gold values in the sheared augite diorite are discontinuous and low (<0.10 opt). During 1962-63, 648 ounces of Au were mined from 2700 tons of ore from the 'West Mine Zone'.
Dec 07, 2005 (K R Kettles) - The wallrocks adjacent to the quartz stringers and veins have been variably carbonatized, sericitized, silicified, and chloritized in the NMZ, and in the WMZ the augite diorite has been silicified within the shear zone.
| Rank | Classification |
|---|---|
| 1 | Unknown |
| Rank | Characteristic |
|---|---|
| 2 | Sheared |
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 50 | 2.5 | 630 | 200 | 40 |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 600 | 1 | 300 | 200 | 60 |
Date: Jan 30, 1997
Geologist: K R Kettles
Notes: N/A
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1966 | 2134927 |
Silver 181386 Ounces Gold 651544 Ounces |
OFR5558 p. 369 | Total production from 1935 to 1966. Ore reserves are exhausted. |
File - 1961, Resident Geologist's Files, Red Lake
Publication Number: AF RL 1961 Date: 1961
Author: Browne, O.J.
Publisher Name:
Location: Red Lake RGP
File - 1959, Resident Geologist's Files, Red Lake
Publication Number: AF RL 1959 Date: 1959
Author: Kuryliw, C.J.
Publisher Name:
Location: Red Lake RGP
MonoMap - Geology of Dome Township, District of Kenora
Publication Number: R045 Page: 74-79 Date: 1997
Author: Ferguson S.A.
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: 211-212 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Part - Geology and mineral deposits of the Red Lake area
Publication Number: ARV49-02 Page: part 2 p. 156-157 Date: 1998
Author: Horwood H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Thesis - Geology of the McKenzie Red Lake Gold mines
Publication Number: MA Thesis Date: 1941
Author: Hoiles, R.G.
Publisher Name: Queen's University
Location:
Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2
Publication Number: OFR5558 Page: 368-0, 373-74 Date: 1987
Author: Durocher M.E., Burchell P.S., Andrews A.J.
Publisher Name: Ontario Geological Survey
Location:
File - Resident Geologist's Files, Red Lake
Publication Number: AF RL Date:
Author: Boyd, J.A.
Publisher Name:
Location: Red Lake RGP
Book - McKenzie Gold Mines 1963 Annual Report
Publication Number: MGM AR Date: 1963
Author: McKenzie Gold Mines
Publisher Name:
Location: Red Lake RGP
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