Ontario Geological Survey
Permanent Link to this Record:
MDI42D16SW00010
| Record Name(s) | Lake Superior Stone Syndicate - 1960 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1983-May-05 |
| Date Last Modified | 2022-Apr-27 |
| Created By | |
| Revised By |
Primary Commodities: Granite
Township or Area: McCoy
Latitude: 48° 45' 25.17" Longitude: -86° 23' 19.83"
UTM Zone: 16 Easting: 544918.64 Northing: 5400622.48 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D09NW, 42D16SW
Point Location Description: Outcrop
Location Method: Conversion from MDI
Access Description: GENERAL LOCATION: The claim group (47 claims) extended south from Hare Lake to within 0.8 km of the Marathon townsite (Pic Twp.) (Figure 22). ACCESS: The large area of this claim group has limited access by road, rail and powerline.
1960: The Syndicate was formed by C.S. Downey of North Bay with a group of men in Toronto. The claim block also included part of the claims of the Angler Occurrence. A marketing study was conducted, and quarrying was scheduled to begin in the fall of 1960. However, failure to secure a market resulted in development of the property to cease. 1962: The claims were cancelled. No assessment files were found on record.
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Geological Age: Archean
Dec 07, 2005 (W Bellinger) - GENERAL GEOLOGY AND STRUCTURE: The 47 claims covered the area west of the past producing quarries (near the railroad) to Highway 17 and included the Angler Property. The claims are underlain by Fe-rich augite syenite (Walker et al. 1992) of the Proterozoic Coldwell alkalic complex. Geological mapping over the area was done by Puskas (1967) and recently by Walker et al. (1991, 1992, 1993). Walker et al. (1992) described the iron-rich augite syenite as follows: The iron-rich augite syenite appears to be a low angle sheet-like intrusion, which dips approximately 15 degrees toward the centre of the complex. It intrudes the basaltic xenoliths of the roof pendant and the Eastern and Western Gabbro, and it has inclusions of recrystallized amphibole quartz syenite. A variation in mineralogy from the bottom to the top through the sheet is present and consists of: fayalite-iron-rich, augite-magnetite syenite; iron-rich augite syenite; fayalite-iron-rich augite syenite; and amphibole syenite.
| Rock Type | Rank | Composition | Texture | Relationship | Syenite | 1 | Augite Rich, Syenitic | Med To Coarse Gr | Host |
|---|
Dec 07, 2005 (W Bellinger) - COLOUR: The stone is generally a dark colour, being similar to the other black granites in the area. TEXTURE: The stone is medium to coarse grained. Iron-rich augite syenite, which forms the majority of the intrusion, typically contains iridescent tabular to lath-shaped feldspars with cryptoperthitic intergrowths and up to 30% interstitial, iron-rich augite. Variable amounts of fayalite, amphibole, aenigmatite and rare quartz occur in the subunit. The rock is generally black to olive-brown, coarse grained and massive.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Augite | Economic | Ore | ||||
| 2 | Fayalite | Economic | Ore | ||||
| 3 | Feldspar | Economic | Ore | ||||
| 4 | Amphibole | Economic | Ore | ||||
| 1 | Magnetite | Economic | Gangue |
Dec 07, 2005 (W Bellinger) - MINERALOGY: Walker et al. (1992) described the mineralogy of the iron-rich augite syenite: Iron-rich augite syenite, which forms the majority of the intrusion, typically contains iridescent tabular to lath-shaped feldspars with cryptoperthitic intergrowths and up to 30% interstitial, iron-rich augite. Variable amounts of fayalite, amphibole, aenigmatite and rare quartz occur in the subunit. The rock is generally black to olive-brown, coarse grained and massive. COLOUR: The stone is generally a dark colour, being similar to the other black granites in the area. TEXTURE: The stone is medium to coarse grained.
Dec 07, 2005 (W Bellinger) - The property covers a large area underlain by feldspar porphyritic amphibole syenite and iron-rich augite syenite. There are no clearly identified occurrences on the property. Therefore, it is recommended that the property be prospected for any exposures of massive stone with consistent texture and colour. If any sites are located they should be stripped, drilled to determine the consistency of colour with depth and then test blocks removed. The attractive brown, black and green colours observed at other sites could be found within the property boundary.
Book - SURV OF GEOL. AND GEOMORPH. OF NEYS PROV PARK,ENV PLAN SERIES,MNR
Publication Number: MNR 1974 Date: 1974
Author: Billings, M.D.
Publisher Name:
Location: Thunder Bay RGP
Map - Port Coldwell area, District of Thunder Bay
Publication Number: P0114 Scale: 1:31,680 Date: 1997
Author: Puskas F.P.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Port Coldwell area, District of Thunder Bay
Publication Number: OFR5014 Page: 88 Date: 1997
Author: Puskas F.P.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Precambrian Geology, Port Coldwell Complex, East Half
Publication Number: P3233 Scale: 1:20,000 Date: 1993
Author: Walker E.C., Sutcliffe R.H., Shaw C.S.J., Shore G.T., Penczak R.S.
Publisher Name: Ontario Geological Survey
Location:
Mono - Dimensional Stone Occurrences and Deposits in Northwest Ontario
Publication Number: OFR5890 Page: 120-123 Date: 1994
Author: Hinz P., Landry R.M., Gerow M.C.
Publisher Name: Ontario Geological Survey
Location:
Publication - A Contribution to the Petrology of the Coldwell Alkaline Complex; Geological Survey of Canada, Bulletin 287
Publication Number: GSC Bull 287 Date: 1980
Author: Currie, K.L.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/106630
Article - Geology of the Coldwell alkaline complex
Publication Number: MP157.018 Date: 1998
Author: Walker E.C., Sutcliffe R.H., Shaw C.S.J., Shore G.T.
Publisher Name: Ontario Geological Survey
Location:
Article - Geology of the Port Coldwell alkalic complex
Publication Number: MP160.019 Page: 108-120 Date: 1997
Author: Walker E.C., Sutcliffe R.H., Shaw C.S.J., Shore G.T., Penczak R.S.
Publisher Name: Ontario Geological Survey
Location:
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