Ontario Geological Survey
Permanent Link to this Record:
MDI52C16SW00003
| Record Name(s) | Red Cedar Lake - 1988, Cedar Lake - 1936, E. Rivers - 1973 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1986-Nov-05 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Bennett Lake Area
Latitude: 48° 46' 57.09" Longitude: -92° 16' 39.09"
UTM Zone: 15 Easting: 553073.05 Northing: 5403532.26 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52C16SW
Point Location Description: Location of DDH RC-88-4 from Assessment report 52C16SW0002
Location Method: Data Compilation
1936: Cedar Lake Gold Mines Ltd. carried out trenching and sampling. 1937: Cedar Lake Gold Syndicate drilled 1 DDH totalling 42.1 m. 1940: Sylvanite Gold Mines Ltd. carried out sampling. 1958: Jacobus Mining Corp. drilled 3 DDH totalling 305 m. 1960: Turbenn Mineral Ltd. carried out a ground magnetometer survey. 1973: E.J. Rivers carried out stripping, trenching, and sampling. 1974: A.C.A. Howe International Ltd. carried out sampling. 1975: A.C.A. Howe conducted ground magnetic and EM surveys. 1984: Argor Explorations Ltd. carried out geological mapping. 1988: Royal Crest Resources Ltd. conducted magnetometer, VLF-EM, and IP surveys, geological mapping, and drilled 5 DDH totalling 683.3 m. 2002-03: R.C. Angove and K. Davis carried out prospecting and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.12865 | 52C16SW0002 | 52C16SW0002 |
| 13 | 52C16SW8242 | 52C16SW8242 |
| 2.7646 | 52C16SW0005 | 52C16SW0005 |
| 2.26750 | 52C16SW2009 | 52C16SW2009 |
| 2.26277 | 52C16SW2010 | 52C16SW2010 |
| 63.3250 | 52C16SE0006 | 52C16SE0006 |
| 2.1813 | 52C16SW8252 | 52C16SW8252 |
Province: Superior
Subprovince: Wabigoon
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Schist-Unsubdivided | 1 | Near |
|---|---|---|---|---|
| Mylonite/Fault Gouge/Pseudotachylite | 2 | Shear Zone | Contains | |
| Vein | 3 | Contains | ||
| Ironstone-unsubdivided | 3 | |||
| Mafic lava flow-unsubdivided | 5 |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore | ||||
| 4 | Sphalerite | Economic | Ore | ||||
| 5 | Magnetite | Economic | Ore | ||||
| 6 | Galena | Economic | Ore | ||||
| 7 | Hematite | Economic | Ore |
Sep 15, 2020 (Therese Pettigrew) - Quartz and quartz-carbonate veins are associated with sulphide ironstone. The ironstone is hosted by clastic metasediments, biotite and hornblende gneisses. The gneisses display an augen texture. The quartz veins vary up to 0.75 metre in width and appear discontinuous. The veins are hosted by east-trending (striking 110 degrees) shear zones up to several metres in width. Mineralization consists of pyrite, chalcopyrite, magnetite, hematite with accessory minerals including graphite, carbonate, limonite and chlorite. The sugary quartz veins may have been produced during deformation and recrystallization of chert, chemical sediments, or felsic metavolcanics. The gold concentration varies from trace to 0.40 ounces of gold per ton with a preferential concentration of gold in shear zones (Schnieders and Dutka, 1985). Hole RC-88-4 (L18+17E/1+50S) was testing the eastern extension of a gold-bearing magnetic anomaly. It was found to be an interbanded magnetic iron formation and a garnetiferous mafic metavolcanic or garnet biotite chlorite feldspar schist that were both highly deformed and gave anomalous gold values. These units were mineralized with 1- 6% pyrite, 1-3% pyrrhotite, and traces of chalcopyrite, sphalerite and magnetite. The best mineralized sections were from 25.2 to 60.6' assaying between 300 and 1012 ppb gold, and at 119.6 to 128.8' assaying between 200 and 558 ppb gold in mainly garnetiferous magnetic sections with <6% pyrite and <4% pyrrhotite. Samples taken in 1936 covered a distance of 60 feet and gave an average value of $5.28 (0.15 oz/ton Au). In 1958 Jacobus Mining Corporation drilled three short diamond drill holes in the vicinity of the main trench of the Red Cedar property presumably to test the previously reported gold mineralization. These holes with a total length of 305 m intersected narrow units of alternating quartzite, graywacke and magnetite ironstone which are intruded by a porphyry. Sulphide mineralization (pyrite, pyrrhotite, chalcopyrite, and sphalerite) was sparsely disseminated throughout the core with localized concentrations of pyrite and pyrrhotite, and veins of pyrrhotite in the banded ironstone. No assay results were reported. In June 1974, P. Huxhold resampled the same trenches for A. C. A. Howe International Limited. Sampling of a rusty shear zone with quartz veining in trench 2 by Rivers yielded 0.06 oz/ton gold over 27 feet. Sampling of the same zone by Huxhold revealed 0.03 oz/ton gold over 30 feet (Assessment report 52C16SW0002).
Mono - Property visits and reports of the Atikokan economic geologist, 1979-1983, Atikokan geological survey
Publication Number: OFR5539 Scale: Date: 1985
Author: Schnieders B.R., Dutka R.J.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of the Calm Lake area, District of Rainy River
Publication Number: R226 Scale: Date: 1985
Author: Fumerton S.L.
Publisher Name: Ontario Geological Survey
Location:
Mono - Gold deposits of the Kenora-Fort Frances area, districts of Kenora and Rainy River
Publication Number: MDC016 Scale: Date: 1976
Author: Beard R.C., Garratt G.L.
Publisher Name: Ontario Division of Mines
Location:
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