Ontario Geological Survey
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MDI52F07NW00003
| Record Name(s) | Swede Boys Island - 1980 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1980-Sep-23 |
| Date Last Modified | 2022-Aug-05 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Harper Lake Area
Latitude: 49° 23' 29.93" Longitude: -92° 49' 30.62"
UTM Zone: 15 Easting: 512686.775 Northing: 5471009.354 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F07NW
Point Location Description: General
Location Method: Conversion from MDI
Access Description: The two islands lying immediately northeast of the peninsula between Reliance and Jackfish Bays of Upper Manitou Lake were formerly referred to as theSwede Boys Islands, though the name is now reserved for the larger of the two islands only. According to Thomson (1933, p.36). (GR 189, p. 61, 62; 1979)
Province: Superior
Subprovince: Wabigoon
Terrane: Western Wabigoon
Belt: Eagle-Wabigoon-Manitou
Geological Age: Precambrian
| Rock Type | Rank | Composition | Texture | Relationship | Schist-Unsubdivided | 1 | Adjacent |
|---|---|---|---|---|
| Vein | 2 | Contains |
Feb 23, 2010 (C Ravnaas) - GRADE: BEST ASSAY - 0.29 OPT AU FROM GRAB. On the larger of these islands (H.P.259) an old shaft is located on a quartz vein, which strikes N. 50 degrees E. and dips 75 degrees S. E. The vein is about 2 feet [0.6 m] wide and may be traced about 15 feet [5 m] to the southwest. There are some old pits along the strike to the northeast, but no vein material can be observed. The wall rock of the vein is chlorite schist carrying a little pyrite. Native gold was observed in the schist. A grab sample of the ore on the dump assayed $8.80 per ton (0.44 0z/t Au) in gold. East of the shaft on the shore of a small bay a stockwork of small quartz stringers and schist occurs across a width of 6 feet [2 m] and may be traced along the shore a short distance. The quartz and schist carry a little sulphides. Another old shaft is located on the smaller island (H.P. 260) to the northeast. It was sunk on a small lens of milky-white quartz in massive agglomerate and tuff. The quartz lens is about 2 feet [0.6 m] in width and may be traced 30 feet [9 m]. It contains a trace of pyrite and chalcopyrite. A grab sample of the material on the dump assayed 80 cents ' in gold per ton. The present writer was unable to locate any of the shafts and pits referred to by Thomson. As of December 1973, Swede Boys Island was held under two patented claims, K3810 and K3811, being parts of mining location HP259. The smaller is land, former mining location HP260, was not held under patent, and is open to staking. (GR 189, p. 61, 62; 1979)
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Chalcopyrite | Economic | Ore | ||||
| 10 | Gold | Economic | Ore | ||||
| 15 | Pyrite | Economic | Ore |
Feb 23, 2010 (C Ravnaas) - GRADE: BEST ASSAY - 0.29 OPT AU FROM GRAB. On the larger of these islands (H.P.259) an old shaft is located on a quartz vein, which strikes N. 50 degrees E. and dips 75 degrees S. E. The vein is about 2 feet [0.6 m] wide and may be traced about 15 feet [5 m] to the southwest. There are some old pits along the strike to the northeast, but no vein material can be observed. The wall rock of the vein is chlorite schist carrying a little pyrite. Native gold was observed in the schist. A grab sample of the ore on the dump assayed $8.80 per ton (0.44 0z/t Au) in gold. East of the shaft on the shore of a small bay a stockwork of small quartz stringers and schist occurs across a width of 6 feet [2 m] and may be traced along the shore a short distance. The quartz and schist carry a little sulphides. Another old shaft is located on the smaller island (H.P. 260) to the northeast. It was sunk on a small lens of milky-white quartz in massive agglomerate and tuff. The quartz lens is about 2 feet [0.6 m] in width and may be traced 30 feet [9 m]. It contains a trace of pyrite and chalcopyrite. A grab sample of the material on the dump assayed 80 cents ' in gold per ton. The present writer was unable to locate any of the shafts and pits referred to by Thomson. As of December 1973, Swede Boys Island was held under two patented claims, K3810 and K3811, being parts of mining location HP259. The smaller is land, former mining location HP260, was not held under patent, and is open to staking. (GR 189, p. 61, 62; 1979)
Mono - Property visits by the Dryden area mineral commodity geologist, 1989
Publication Number: OFR5731 Page: 143 Date: 1990
Author: Delisle P.C.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of the Manitou-Stormy lakes area
Publication Number: ARV42-04.001 Page: 36 Date: 1998
Author: Thomson J.E.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold deposits of the Kenora-Fort Frances area, districts of Kenora and Rainy River
Publication Number: MDC016 Page: 39 Date: 1976
Author: Beard R.C., Garratt G.L.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of the Upper Manitou Lake area, District of Kenora
Publication Number: R189 Page: 60-61 Date: 1979
Author: Blackburn C.E.
Publisher Name: Ontario Geological Survey
Location:
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