Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52M01SE00182

Record: MDI52M01SE00182

General

Mineral Record Identification
Record Name(s) Cole Shaft - 1932, Cole Gold Mines Shaft Prospect - 1932
Related Record Type Partial
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 1979-May-05
Date Last Modified 2023-Mar-23
Created By
Revised By

Commodities

Primary Commodities: Gold

Secondary Commodities: Tungsten, Silver



Location

Township or Area: Ball

Latitude: 51° 4' 10.82"    Longitude: -94° 13' 59.16"

UTM Zone: 15    Easting: 413605   Northing: 5658296.01    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52M01SE

Point Location Description: Precise/SHAFT

Location Method: Conversion from MDI

Access Description: W SHORE OF PIPESTONE BAY.



Exploration History

1926-1932: J.Y. Cole performed surface prospecting. 1932: developed 6.1 m shaft. 1933: Cole Gold Mines Ltd. was incorporated. Steam plant installed, shaft sunk to 61m, some lateral work. 1934-1937: Shaft sunk to 161.5 m, levels at 91.5, 122, and 152.5 m. 1937: 1250 m of underground drilling and 2134 m of lateral work. 1973: Kerr Addison optioned, performed magnetometer and EM surveys and drilled 19 diamond drill holes totalling 2108 m to test possible extensions of main vein. 2021: Rockland Resources completed a 5 drill hole program, totalling 996 m on the property.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
52M01SE0172 20000006230 20000006230
52M01SE0194 20000004934 20000004934
20000020094 20000020094

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Red Lake

Geological Age: Cenozoic  

Metamorphism Type: Regional

Metamorphism Grade: U. Greenschist



Geology Comments

Dec 07, 2005 (K R Kettles) - The Cole gold Mines Main Showing shaft area is underlain by felsic flows and tuffs interlayered with gabbroic sills. The volcanic rocks contain about 12 parallel shear zones ranging in width from 15 cm to 3 m and containing lenses and veins of bluish-grey quartz. The shearing is oriented roughly parallel to bedding and dips 65 degs to 75 degs north. Gold is in both the quartz veins and wallrock. Quartz veining occurs over a length of 440 m, in underground drilling and workings. Single quartz veins are as long as 213 m. Several west-dipping, left handed faults in the shaft area have laterally offset the veins about 34 m. Kerr Addison concluded that magnetic and EM anomalies in this area are caused by disseminated magnetite in basic to ultrabasic rocks of the Pipestone Bay stock.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Granodiorite 1 Adjacent
Quartz-Rich Granitoid 2 Adjacent
Vein 3 Quartz Sheared Contains
Felsic Tuff 4 Flows & Tuffs Adjacent
Mylonite/Fault Gouge/Pseudotachylite 5 Felsic Volcanics Sheared, Mineralized Host

Lithology Comments

Dec 07, 2005 (K R Kettles) - The quartz veins are both lenses and veins composed of bluish-grey quartz.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
1QuartzEconomicGangue
2ArsenopyriteEconomicGangue
3ChalcopyriteEconomicGangue
4PyrrhotiteEconomicGangue
5PyriteEconomicGangue
6ScheeliteEconomicGangue
7SphaleriteEconomicGangue
SilicaAlterationSilicification1UnknownDisseminated
SulphidesAlterationSulphidation2UnknownDisseminated

Mineralization Comments

Dec 07, 2005 (K R Kettles) - The Cole Gold Mines Main Showing consists of a number of mineralized shear zones in the felsic volcanics. The zones are about 425 m long. Gold is contained in both quartz veins and wallrock next to the veins. Gold values occur over a width of 0.6 to 2.5 m, and visible gold has been noted to a depth of 365 m. Shearing is roughly parallel to bedding and dips steeply to the N. The quartz veins hosting much of the gold pinch and swell along strike. The highest gold values occur in sphalerite and chalcopyrite bearing vein sections. A 700 lb. sample from the 621 m level assayed 1.32 opt Au and 0.61 opt Ag. 2021: Rockland resources released results from a diamond drill hole program. Results include 4.9 g/t Au over 0.5 m and 3.6 g/t au over 2.5 m from RL-CP-02, 3.0 g/t Au over 0.5 m from RL-CP-04 (Rockland Resources, news release, March 31, 2022).



Alteration Comments

Dec 07, 2005 (K R Kettles) - The wallrocks are silicified and contain quite a lot of sulphide minerals.




Mineral Record Details

Classification
RankClassification            
1 Unknown
Characteristics
Rank Characteristic            
1 Sheared
2 Vein

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Shear

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Irregular 425 2 365 270 70

Site Visit Information

Date: Dec 13, 1996

Geologist: K R Kettles

Notes: N/A



Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Cole Gold Mines Shaft 1973 Unclassified 108660 OFR 5558 P.59 Kerr Addison estimated reserves w a cut grade, assumed year. Grade: 14.1 g/t Au (119, 780 ton of 0.41 opt Au) Gold 14.06 g/t

References

Map - Ball Township, Kenora District

Publication Number: M2265 Scale: 1:12,000    Date: 1975

Author: Riley R.A.

Publisher Name: Ontario Division of Mines

Location:


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

Publication Number: OFR5558 Page: 58-59EA  Date: 1987

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

Publisher Name: Ontario Geological Survey

Location:


Part - Gold deposits in the vicinity of Red Lake

Publication Number: ARV44-06.001 Page: 49-51  Date: 1997

Author: Hurst M.E.

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: 191-192  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: 96-99  Date: 1998

Author: Horwood H.C.

Publisher Name: Ontario Dept. of Mines

Location:


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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office