Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52N04SE00041

Record: MDI52N04SE00041

General

Commodities

Primary Commodities: Gold

Location

Township or Area: Balmer

Latitude: 51° 6' 3.96"    Longitude: -93° 43' 53.21"

UTM Zone: 15    Easting: 448786.655   Northing: 5661321.996    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52N04SE

Point Location Description: DDH on east boundary of KRL 20888 west of Nungesor Road

Location Method: Conversion from MDI

Exploration History

1945: Consolidated Mining and Smelting drilled 12 short x-ray drill holes and carried out limited trenching. 1947: Redcon Gold Mines completed 4 diamond drill holes. 1953: Performed further drilling. 1959: By this point had completed 43 holes totalling 8347.85 m. 1959-1960: Rio Tinto completed 15 holes totalling 3327.55 m, and IP and magnetometer surveys. 1972: Dickenson Mines completed airborne magnetometer and EM surveys, ground geophysical surveys, and drilled 7 holes totalling 762.81 m. 1973;Performed detailed geophysics over anomalies. 1978-79: Drilled 28 holes totalling 2638.25 m. 1981: Further drilling, depths unknown. 1983: Goldquest Explorations drilled 9 holes totalling 1367.62 m.

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 Carbonate zone occurs within an interlayered sequence comprised mainly of mafic metavolcanic flows and flow breccias with a few intercalated units of sedimentary rocks. The sedimentary units consist mainly of sulphide rich argillaceous sediments which are generally thin but some layers are up to 7.3 m in thickness. Intrusive rocks in the vicinity of the prospect include sericite quartz porphyry, quartz diorite, and thin lamprophyre dikes which are weakly magnetic and contain minor disseminated pyrite. The carbonate zone is a highly irregular carbonate vein in the mafic metavolcanics.

Lithology

Lithology Comments

Dec 07, 2005 (K R Kettles) - The mafic flows include mainly massive fine grained flows, pillowed flows and pillow breccia. Sedimentary rocks are comprised mainly of sulphide rich argillaceous sediments. The lamprophyre dikes are thin fine grained black dikes, and are weakly magnetic.

Mineralization

Mineralization Comments

Dec 07, 2005 (K R Kettles) - CARBONATE ZONE: Gold occurs within, or is very closely associated with late quartz and quartz actinolite veins which cut the carbonate vein as well as the country rock. They have been observed as far as 30 m from the main carbonate vein. Generally, the best gold values occur within or near the margins of the carbonate vein. The carbonate vein is at least 1067.5 m in length and varies in thickness from 1.9 m to 22m. The vein strikes ESE-WNW and dips steeply south. Gold values in the carbonate vein are erratic and correlation between adjacent diamond drill holes is difficult. Most of the values obtained from the vein range between 0.02 opt Au and 0.25 opt Au over 0.15 to 0.61 m. A few assays were as high as 1.6 opt Au. HANGING WALL OF CARBONATE ZONE: Native gold occurs in thin milky to glassy ribbony quartz veins which have a maximum thickness of 4 cm. The gold is generally concentrated along the margins of the quartz veins. Up to 1% pyrrhotite and chalcopyrite are also found within the veins. The veins occur in a zone 0.3 m wide and 6.4 m in length. The zone is located on the hanging wall of the carbonate zone.

Aug 31, 2022 (Q Unknown) - 1979 DDH Carbonate Zone: values erratic, most range 0.02-0.25 opt Au/0.15-0.61 m, few assays as high as 1.6. 1979 DDH Hanging Wall: avg. 0.31 opt Au/5.1 m, best 0.73 opt/1.5 m, 5 other intersec.avg.1.80 opt/0.4 m. Several geophysical targets exist in the area, which have been shown to represent barren sulphide/graphite rich sediments.

Alteration Comments

Dec 07, 2005 (K R Kettles) - The mafic metavolcanics have been carbonatized and silicified, and are biotitic in places. Sedimentary rocks in the sequence are locally garnetiferous.

Mineral Record Details

References

File - Red Lake Resident Geologists Files 1979 Balmer #75, 120

Publication Number: AF RL 1979 Date: 1979

Author: Sannes, D.L.

Publisher Name:

Location: Red Lake RGP

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

Publication Number: P1976A Scale: 1:12,000    Date: 1978

Author: Pirie J., Grant A.

Publisher Name: Ontario Geological Survey

Location:

Part - Geology of Balmer Township

Publication Number: ARV60-10 Page: 54-55  Date: 1997

Author: Chisholm E.O.

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: 171-174  Date: 1987

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

Publisher Name: Ontario Geological Survey

Location:

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