Ontario Geological Survey
Permanent Link to this Record:
MDI42D16SW00032
| Record Name(s) | Marathon Red Granite - 1985, Port Coldwell Syenite - 1880 |
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| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1996-Dec-17 |
| Date Last Modified | 2023-Jun-12 |
| Created By | |
| Revised By |
Primary Commodities: Granite
Secondary Commodities: Rare Earth Elements, Yttrium
Township or Area: Coldwell
Latitude: 48° 46' 20.17" Longitude: -86° 33' 44.87"
UTM Zone: 16 Easting: 532148.16 Northing: 5402232.96 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D16SW
Point Location Description: Outcrop
Location Method: Data Compilation
Access Description: GENERAL LOCATION: The property is 30 km west of Marathon on Highway 17. Approximately 2.5 km northwest of Port Coldwell and northeast of the highway (Figure 24). ACCESS: The property is traversed by Highway 17, a cliff face lies 10 m northeast of the highway.
1880s: An attempt to quarry the red syenite for building construction was made near Port Coldwell. 1960: Red syenite staked by Paavo Pelto of Schreiber and Joseph Clement of Hillsport. All of these claims were cancelled by 1962 1965: Area staked by Samuel Hannah, Fort William. Claims cancelled by 1966. 1985: Highway exposures staked by Dave Petrunka, Thunder Bay. 1988: Dave Petrunka staked additional claims, property optioned to Cold Spring Granite (Canada) Ltd. 1989: Cold Spring Granite carried out a radar survey, drilled 17 DDH totaling 174.5 m, and carried out a feasibility study that included collecting a 14 ton sample. 1990 Cold Spring Granite (Canada) Ltd. dropped option on the property. 1992 Dave Petrunka holds the ground and is looking for joint venture/option partners. 1999: J.H. Morgan carried out prospecting, mapping, and drilled 4 DDH totaling 42.4 m. 2000-1: J.H. Morgan carried out sampling and a radiometric survey. 2012: Besco International Investment Company Ltd. carried out prospecting and evaluation. 2015: Besco carried out prospecting and evaluation. 2016: Besco carried out sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.19837 | 42D15SE2003 | 42D15SE2003 |
| 13 | 42D15SE0002 | 42D15SE0002 |
| 2.20717 | 42D15SE2009 | 42D15SE2009 |
| 2.21861 | 42D15SE2014 | 42D15SE2014 |
| 2.19782 | 42D15SE2005 | 42D15SE2005 |
| 2.57320 | 20000013751 | 20000013751 |
| 2.56541 | 20000013986 | 20000013986 |
| 2.22260 | 42D15SE2016 | 42D15SE2016 |
| 2.12666 | 42D15SE0003 | 42D15SE0003 |
| 2.19835 | 42D15SE2006 | 42D15SE2006 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Geological Age: Archean
Dec 07, 2005 (W Bellinger) - GENERAL GEOLOGY AND STRUCTURE: The claims are underlain by amphibole-natrolite-nepheline 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).
| Rock Type | Rank | Composition | Texture | Relationship | Syenite | 1 | Amp. Nat. -Nepheline Syenite | Med To Coarse Gr | Host |
|---|
Dec 07, 2005 (W Bellinger) - MINERALOGY: In thin section, the stone is composed of primarily anhedral, 'turbid' crystals of perthitic feldspar. The turbid areas are caused by the presence of numerous vacuoles. The reddish colour of the stone may be due to iron-staining of the vacuoles and fractures within the feldspar crystals. Anhedral pyroxene (augite), biotite, amphibole (hornblende), and opaque minerals occur together. COLOUR: The stone is red-brown on fresh surface and orange-red on the weathered surface (see Photo 14, Appendix A). TEXTURE: The stone is medium to coarse grained with some randomly distributed mafic knots.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Augite | Economic | Ore | ||||
| 2 | Feldspar | Economic | Ore | ||||
| 3 | Hornblende | Economic | Ore | ||||
| 1 | Biotite | Economic | Gangue | ||||
| Biotite | Alteration | Biotitic | 1 | Unknown | Disseminated |
Dec 07, 2005 (W Bellinger) - MINERALOGY: In thin section, the stone is composed of primarily anhedral, 'turbid' crystals of perthitic feldspar. The turbid areas are caused by the presence of numerous vacuoles. The reddish colour of the stone may be due to iron-staining of the vacuoles and fractures within the feldspar crystals. Anhedral pyroxene (augite), biotite, amphibole (hornblende), and opaque minerals occur together. COLOUR: The stone is red-brown on fresh surface and orange-red on the weathered surface (see Photo 14, Appendix A). TEXTURE: The stone is medium to coarse grained with some randomly distributed mafic knots. OTHER FEATURES: Diamond drilling conducted by Cold Spring Granite Canada Ltd. noted a change in colour at a depth of approximately 9.1 m. PHYSICAL PROPERTIES: Bulk Specific Gravity: 2.75. % Absorption 2 hrs: 0.22. 48 hrs: 0.32. Compressive Strength: 22,049 psi. Modulus of Rupture: 1,394 psi. Tests performed by Geoscience Laboratories, Ontario Geological Survey, Toronto.
Dec 04, 2018 (Therese Pettigrew) - Three samples collected by the GSC in 1979 returned averaged assays of 260 ppm Yttrium, 470 ppm Zirconium, 180 ppm Niobium, 200 ppm Lanthanum, and 280 ppm Cerium. A sample collected by prospector J.H. Morgan in 2000 returned assays of 52.5 ppm Y, 352 ppm Zr, 237 ppm Nb, 331 ppm La, and 645 ppm Ce (Assessment file 42D15SE2009).
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 Date: 1997
Author: Puskas F.P.
Publisher Name: Ontario Dept. of Mines
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:
File - Industrial minerals geologist files
Publication Number: IMF Date: 1996
Author:
Publisher Name:
Location: Thunder Bay RGP
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:
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:
Part - Nepheline syenites of Port Coldwell
Publication Number: ARV19-01.008 Date: 1998
Author: Kerr H.L.
Publisher Name: Ontario Bureau of Mines
Location:
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files, Thunder Bay office
Publication Number: Min Dep Date: 1996
Author:
Publisher Name:
Location: Thunder Bay RGP
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