Ontario Geological Survey
Permanent Link to this Record:
MDI000000001800
Record Name(s) | Chrome Puddy - 2023, Commerce Northwest - 1967, Commerce Far West - 2024 |
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Related Record Type | |
Related Record(s) | |
Record Status | Occurrence |
Date Created | 2014-Dec-02 |
Date Last Modified | 2024-Oct-24 |
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Revised By |
Primary Commodities: Nickel, Copper
Secondary Commodities: Cobalt, Chromium, Iron
Township or Area: Puddy Lake Area
Latitude: 49° 57' 54.97" Longitude: -89° 33' 16.15"
UTM Zone: 16 Easting: 316806 Northing: 5537897 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52H13NE
Point Location Description: sample location
Location Method: Field Visit with GPS
Access Description: This occurrence is most readily accessed by air (either helicopter or float plane). At the time of a 2012 site visit, a large cleared area at the site afforded easy helicopter access.
1964-67: Trenching, geological mapping, geochemical and geophysical surveys,and diamond drilling (24 ddh for 5590 feet) by Commerce Nickel Mines. 1967-68: Trenching, electromagnetic suveys and diamond drilling (10 ddh for 3106 feet) by Newmont Mining Corp. of Canada. 1987-88: Geological mapping, sampling and ground geophysical surveys by Imperial Platinum Corp. 2007: Ground magnetic and electromagnetic surveys by Vale Inco Ltd. 2014: The property is being explored by Pavey Ark Minerals Inc. 2023: Green Bridge Metals (formerly Mich Resources) optioned the property and carried out sampling. 2024: Green Bridge Metals carried out channel sampling.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
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63.2144 | 52H13NE0011 | 52H13NE0011 |
11 | 52H13NE0016 | 52H13NE0016 |
63.1782 | 52H13NE0012 | 52H13NE0012 |
2.10948 | 52H14NW0001 | 52H14NW0001 |
2.39091 | 20000003238 | 20000003238 |
Dec 02, 2014 (Mark Puumala) - The following geological description is excerpted from OFR 6285: The outcrop surface at this location has a distinctive red colouration caused by secondary iron oxides associated with the weathering of the serpentinized ultramafic rocks. The weathered surface material has largely broken down into angular pebble to cobble-sized blocks. The less weathered surface-exposed material is generally light grey or green and contains millimetre- to centimetre-scale seams and patches of magnetite. Fresh surfaces of the serpentinized material are light green in colour. A grab sample collected from one of the historic exploration trenches at UTM Zone 16, 316806E, 5537897N assayed 1881 ppm Ni. However, no significant precious metal assay values (i.e., Au, Pt or Pd) were obtained from this sample (Resident Geologist’s Files, Thunder Bay South District, Thunder Bay).
Rock Type | Rank | Composition | Texture | Relationship | Serpentinite | 1 | Is |
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Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
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1 | Serpentine | Economic | Ore | ||||
1 | Brucite | Economic | Gangue |
Dec 02, 2014 (Mark Puumala) - Commerce Nickel Mines Ltd. drilled a magnetic anomaly near this location in 1965. Assay results reported by Nelson (1969; Iridium ant Puddy Lake, Canada, Mineral Deposit Files, Thunder Bay South District, 52H13NW Puddy Lake Prospect) for Commerce Nickel Mines ddh No. 8 included values of up to 1.12% Cu and 0.36% Ni over 10 feet.
May 17, 2024 (Therese Pettigrew) - The ultramafic intrusion that hosts nickel mineralization is highly serpentinized where hydrothermal alteration has transformed anhydrous silicate minerals such as olivine into hydrous and hydroxide minerals such as serpentine and brucite. This process has released nickel and iron oxide minerals that occur in both veins and as disseminated mineralization. From a total of 109 grab samples collected in the autumn 2023 prospecting campaign, 52 grab samples were from serpentinized ultramafic rocks. In addition to the elevated Ni contents ranging from 0.10% to 0.38% Ni with an average of 0.20% Ni, the ultramafic samples contained an average of 11.7% Fe, 0.015% Co and 0.25% Cr. Higher Ni values are generally correlated with higher Fe content. Chrome Puddy serpentinite samples are generally low S with less than 0.1% S. Low S samples typically also have low Cu, Pt, Pd and Au. Sample A1021861 returned 0.321% Ni, 8.76% Fe, 0.048% Co, and 0.18% Cr from a serpentinite. Sample B903122 returned 0.382% Ni, 6.43% Fe, 0.06% Co, and 0.26% Cr from a serpentinite (Green Bridge Metals news release May 15, 2024). A 16.0 m channel sample returned an average of 2018 ppm Ni, 7.39% Fe, 139.3 ppm Co, and 2558 ppm Cr (Green Bridge Metals news release Oct 23, 2024).
Rank | Classification |
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1 | Mafic-Ultramafic Intrusion |
Date: Dec 02, 2014
Geologist: Mark Puumala
Notes: The geological description provided elsewhere in this record is based on this site visit.
Mono - Report of Activities 2012, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District
Publication Number: OFR6285 Date: 2013
Author: Puumala M.A., Campbell D.A., Cundari R.M., Zurevinski S.E., Tuomi R.D., Lockwood H.C., Debicki R.L., Moses P., Brunelle M.R., Pelaia R.
Publisher Name: Ontario Geological Survey
Location:
Mono - Chromite deposits in Ontario
Publication Number: S055 Date: 1986
Author: Whittaker P.J.
Publisher Name: Ontario Geological Survey
Location:
Map - Obonga Lake area, west part, District of Thunder Bay
Publication Number: P0416 Scale: 1:15,840 Date: 1997
Author: Kustra C.R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Precambrian Geology of the Northwest Portion of the Nipigon Embayment, Northwestern Ontario
Publication Number: P3579 Scale: 1:100,000 Date: 2006
Author: Hart T.R.
Publisher Name: Ontario Geological Survey
Location:
Mono - Garden-Obonga Lake Area High Density Lake Sediment and Water Geochemical Survey, Northwestern Ontario
Publication Number: OFR6009 Date: 2000
Author: Jackson J.E., Dyer R.D.
Publisher Name: Ontario Geological Survey
Location:
Data - Ontario Airborne Geophysical Surveys, Magnetic and Electromagnetic Data, Garden-Obonga Area
Publication Number: GDS1105 Date: 2000
Author: Ontario Geological Survey
Publisher Name: Ontario Geological Survey
Location:
Mono - Soapstone in Ontario
Publication Number: OFR5764 Date: 1991
Author: Gerow M.C., Sherlock E.J., Bellinger J.A.
Publisher Name: Ontario Geological Survey
Location:
Part - Obonga Lake chromite area, District of Thunder Bay
Publication Number: ARV39-02.003 Page: 51-60 Date: 1998
Author: Graham A.R.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Chromite deposits of the Obonga Lake area, District of Thunder Bay
Publication Number: ARV40-04.004 Page: 111-119 Date: 1998
Author: Hurst M.E.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Obonga-Kashishibog area, Thunder Bay District, Ontario; Summary Report 1933, Part D; Geological Survey of Canada, Separate Report 2351
Publication Number: GSC SR 2351 Date: 1933
Author: Kidd, D F
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102114
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