Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52N04SW00044

Record: MDI52N04SW00044

General

Commodities

Primary Commodities: Gold

Location

Township or Area: Dome

Latitude: 51° 3' 13.11"    Longitude: -93° 51' 59.79"

UTM Zone: 15    Easting: 439261.196   Northing: 5656147.244    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52N04SW

Point Location Description: Precise

Location Method: Data Compilation

Access Description: McKenzie Island, by Boat during summer, ice road during winter.

Exploration History

1934-36: MacAndrew Red Lake Gold Mines acquired property, completed stripping, trenching, and drilled 26 holes totalling approximately 1500 m. 1936-1982: idle. 2009: Cargill completed a NI 43-101 report on the property for Crown Minerals Inc. Cargill collected samples from the area. Complete grid cutting on the property and ground magnetic and VLF-EM geophysical surveys. 2010: Crown Gold conducted ground magnetic, VLF-EM geophysical surveys, channel sampling, soil sampling, 9 DDH totalling 661 m. 2011: Crown Gold carried out 1303 m of diamond drilling.

Assessment Work on File

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Red Lake

Geological Age: Archean  

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (K R Kettles) - The prospect is located in the northern part of the Dome granite-granodiorite stock. The rocks in the vicinity of the prospect consist of massive pink granite which is intruded by a N 17 degs W striking granodiorite dike. The dike is bordered on the W for part of its length by a zone of hybrid granite which contains many mafic xenoliths. 2 auriferous quartz veins occur in a shear zone in the hybrid granite close to the granodiorite dike contact. The shear zone strikes N23 degs W and dips about 77 degs E. In the hybrid granite the shear zone is narrow (1 m) and well developed. Where it cuts across the granodiorite dike the shearing becomes more widespread and less intense, and there are no quartz veins. The rocks in the shear zone have been intensely carbonatized.

Lithology

Lithology Comments

Dec 07, 2005 (K R Kettles) - The granite is massive and pink, except next to a contact with a granodiorite dike is has a zone of hybrid granite which contains many mafic xenoliths.

Mineralization

Mineralization Comments

Apr 28, 2014 (K R Kettles) - The quartz veins strike approximately N23 degs W and dip 68 to 77 degs to the NE. Both veins pinch and swell considerably along strike and with depth. Both veins have been intersected in diamond drill holes down to depths in the order of 90 m. Contacts between the quartz veins and the wall rocks are sharp. The quartz veins consist mainly of white glassy quartz. In places the veins have a banded appearance due to thin films and streaks of chlorite and wallrock along fractures subparallel to the vein margins. The most northerly vein is 7.5 metres long and varies in width from 0.2 to 0.6 metres. The south vein has been traced from 50 metres, and varies from 0.02 to 0.05 metres in width. Two small ore shoots have been outlined. Northern vein is 7.5 m long, 0.7 m wide on average, has an average uncut grade of 1.260 opt Au and an average cut grade of 0.360 opt Au. The Southern vein is 19.5 m long, has an average uncut grade of 0.544 opt Au and an average cut grade of 0.3444 opt Au.2009 Chip and grab samples taken from available exposures in the old trenches. Of the 11 samples collected there were 7 anomalous samples. Ranging up to 13.85 ppm Au. 2010: Crown Gold - grab sample returned 4.2 oz/t Au and 1.3 oz/t Ag

Sep 01, 2022 (Q Unknown) - 1936: vein extensively trenched/drilled: channel sampling:0.544 opt Au/1.8 ft for a 65 ft length. 2009: This MDI and MDI52N04SW00078 were the targeted areas, though on the website one can't see which samples belong to which areas. Highest channel sample returned 31.37 g/t Au over 0.6 m.

Alteration Comments

Dec 07, 2005 (K R Kettles) - The sheared granodiorite and hybrid granite have been carbonatized and contain appreciable amounts of Fe-carbonate. Fractures subparallel to and up to 30 m from the main shear zone, have narrow Fe-carbonate rich alteration envelopes.

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Vein

Rank: 2       Structure Type: Shear

Rank: 1       Structure Type: Vein

Site Visit Information

Date: Jan 24, 1997

Geologist: K R Kettles

Notes: N/A

References

Part - Gold deposits in the vicinity of Red Lake

Publication Number: ARV44-06.001 Page: 19  Date: 1997

Author: Hurst M.E.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Geology and mineral deposits of the Red Lake area

Publication Number: ARV49-02 Page: 153-154  Date: 1998

Author: Horwood H.C.

Publisher Name: Ontario Dept. of Mines

Location:

MonoMap - Geology of Dome Township, District of Kenora

Publication Number: R045 Page: 71-72  Date: 1997

Author: Ferguson S.A.

Publisher Name: Ontario Dept. of Mines

Location:

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

Publication Number: OFR5558 Page: 349-350  Date: 1987

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

Publisher Name: Ontario Geological Survey

Location:

Publication - Technical Report on McKenzie Island Project, Red Lake On. Prepared for Crown minerals Inc

Publication Number: Date:

Author: Cargill Consulting Geologists Ltd

Publisher Name: D. George Cargill

Location: Red Lake

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Ministry Contact Information

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