Ontario Geological Survey
Permanent Link to this Record:
MDI52J02SW00026
| Record Name(s) | Shore - 1985, United States - 1985, Steep Rock - 1985 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1985-Jun-18 |
| Date Last Modified | 2022-Mar-03 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper
Township or Area: Fourbay Lake Area
Latitude: 50° 1' 16.16" Longitude: -90° 47' 45.33"
UTM Zone: 15 Easting: 657883.5 Northing: 5543310.49 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52J02SW
Point Location Description: (P) South shore of King Bay of Sturgeon Lake, 1 km from W. end.
Location Method: Conversion from MDI
Access Description: The property is most easily accessed from the Six Mile Lake road which joins Hwy. 599 approximately 1 km south of the Sturgeon River rapids. A side road about 11km along the Six Mile Lake Road leads east and north. At its end a bulldozer trail leads north past a large stripped area to the south shore of King Bay at the occurrence. Alternatively, access points off Hwy. 599 allow boat and snowmobile access to the Sturgeon Lake in winter and summer.
1899: United States Gold Mining Company arrives Sturgeon Lake. 1900: Patented claims registered on property. 1901: Report of Exploration Survey Party # 9. Mine development by Mr. A.E. Shores - 1 Shaft 60 - 70 feet. 1902: 3 shafts and 1 adit on this occurrence, 2 stamp Tremaine mill on site. 1903: Stamp mill in operation, work abandoned at end of year. 1970: Silverside Mines Ltd. commissioned a Scintrex Mag and EM survey on a claim goup adjoining the west side of the patents. 1971: Larchmont Mines Ltd. commissioned a Scintrex Mag and EM survey which extended onto the patents from the south. 1974: Steep Rock Iron Mines Ltd. controlled the patents covering the occurrence. 1982-1994: Extensive work conducted on the N side of King Bay on the Armstrong-Best and other occurrences. 1982-83: Kerr Addison Mines drilled 5 DDH totalling 707.75 m. 1990: Whalex Ltd. acquires the patents. Work completed on ordinary mining claims to north. 1995: Redbird Gold Corp. did a overburden sampling and boulder tracing project on patents and leased claims to south. 1996: Redbird Gold Corp. fills in shafts and adits and completes geological mapping, ground geophysical surveys and extensive mechanical stripping and sampling. No assessment reports were found over the patented land.
Province: Superior
Subprovince: Wabigoon
Belt: Sturgeon Lake
Geological Age: Early Precambrian
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (G Seim) - Davidson (1901) Quartzite bands alternating with green schists, occur along King's Bay. At the foot of the bay is a mine being developed by Mr. Shores. Two parallel veins about 70 feet apart are on the property. The smaller, 3 foot vein, occurring in felsite and quartz porphryr and with a strike of south 80 degrees east is being opened up. and the intention is to cut accross the larger one. At the the time of our visit the shaft had reached a depth of 60 to 70 feet. A vein of pyrrhotite is carried by the quartz, that showed a trace of quartz and also of copper. The quartz porphyry forming the contact, is rich in iron pyrites that assayed $2.20 gold (Gold in 1910 was $18.93 per ounce, 1900 value is unknown). The vein itself is of rusty quartz that carries pyrite and free gold. Some very rich specimens of the latter were shown us by Mr. Shores. The earth off the top of the vein is also very rich, even a pinch panning gold. About 18 men were employed during the summer. Upon the success of this mine depends to some extent the future of the Sturgeon Lake region, as a field for mining operations. Moore (1911) The rock on this property consists of greenstone and banded arkose and slate intruded by quartz-porphyry and porphyritic granite which are believed to be related. There is a band of this rock inpregnated with pyrite, pyrrhotite, marcasite, calcite and quartz running nearly east and west along the shore of the lake. The porphyry and granite contain considerable pyrite, and the pyrite in the other rocks is evidently secondary, as it fills cracks in quartz fragments and appears to have replaced some portions of these fragments. The acid rocks are believed to be the source of the metals.This property has been abandoned.
Dec 07, 2005 (D Janes) - The shafts and pits on claims AL367 and AL368 are excavated in east-trending, south-facing, pillowed metabasalt. To the north, the basalt is in contact with intrusive quartz porphyry and very fine grained trondhjemite. While this contact is underwater and not easily seen, the waste piles surrounding the shafts contain fragements of quatrz vein containing pyrite chalcopyrite and trace amounts of pyrrhotite. To the west is a contact between fine-grained trondhjemite and fractured metabasalt. Drill holes on the lake have returned similar gold-bearing veins in quartz porphyry and trondhjemite.
| Rock Type | Rank | Composition | Texture | Relationship | Granodiorite | 1 | Adjacent |
|---|---|---|---|---|
| Porphyry-unsubdivided | 2 | Qtz, Qtz-Feld Trondhjemite | Near | |
| Vein | 3 | Quartz | Host | |
| Mafic pillowed flow | 4 | Basalt | Pillowed | Near |
Dec 07, 2005 (G Seim) - Trowell (1983) Near the water's edge a thin (less than 1.5 m) silicwous sulphide (pyrite, pyrrhotite) bearing unit is confined between two pillowed mafic metavolcanic flows. This unit is traceable for approximately 60 m along the water's edge and near the shaft closest to the water is irregularly intruded by quartz-feldspar trondhjemite porphyry. The open cut and tunnel appear to have followed a silicified and slightly carbonitized zone in a mafic volcanic flow or intrusion.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Marcasite | Economic | Ore | ||||
| 5 | Chalcopyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Carbonate | Economic | Gangue |
| Rank | Classification |
|---|---|
| 1 | Epigenetic |
| Rank | Characteristic |
|---|---|
| 2 | Sheared |
| 1 | Vein |
Date: Nov 01, 1996
Geologist: G Seim
Notes: In the summer of 1996, Redbird Gold Corp. did considerable mechanical stripping and sampling on the claims hosting the United States Gold Occurrence and claims to the south. The purpose of the work was to locate the bedrock source of numerous gold-bearing, sulphide- blue quartz float. At the time of the visit in late July, the source had not been confirmed, but several narrow intermitent quartz veins had been exposed. Assay values were generally low at that time. Near the shore of King Bay, Redbird had filled in three shafts. The also had exposed a narrow pyritic siliceous unit in metabasalt west of the shafts that had not yet been sampled. or followed for any distance. The geology on a property scale consists of massive and pillowed metabasalts intruded by boudined west-trending quartz porphyry dikes or sills and northwest-trending intermediate to mafic intrusives. Several shearing directions were noted with the prominent ones being 100, 070 and 325.
Map - Squaw Lake, Thunder Bay District
Publication Number: M2420 Scale: 1:31,680 Date: 1980
Author: Trowell N.F.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report Of The Survey And Exploration Of Northern Ontario, 1900
Publication Number: NSP014 Scale: Date: 1998
Author:
Publisher Name:
Location:
Map - Map of the Sturgeon Lake gold field, District of Thunder Bay, Ontario
Publication Number: ARM20B Scale: 1:31,680 Date: 1998
Author: Moore E.S.
Publisher Name: Ontario Bureau of Mines
Location:
MonoMap - Geology of the Squaw Lake-Sturgeon Lake area, District of Thunder Bay
Publication Number: R227 Scale: Date: 1983
Author: Trowell N.F.
Publisher Name: Ontario Geological Survey
Location:
Part - Mines of northwestern Ontario
Publication Number: ARV12.006 Scale: Date: 1998
Author: Miller W.G.
Publisher Name: Ontario Bureau of Mines
Location:
Map - Sioux Lookout-Armstrong, geological compilation series, Kenora and Thunder Bay districts
Publication Number: M2442 Scale: 1:253,440 Date: 1981
Author: Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
Part - The Sturgeon Lake gold field
Publication Number: ARV20-01.005 Scale: Date: 1998
Author: Moore E.S.
Publisher Name: Ontario Bureau of Mines
Location:
Map - North Arm of Sturgeon Lake, Precambrian geology
Publication Number: M2456 Scale: 1:50,000 Date: 1982
Author: Trowell N.F.
Publisher Name: Ontario Geological Survey
Location:
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