Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41I05SW00014

Record: MDI41I05SW00014

General

Mineral Record Identification
Record Name(s) Baldwin - 1929, Spanish River Mine - 1967, Linton - 1956, Brismil - 1958
Related Record Type Compound
Related Record(s)
Record Status Prospect
Date Created 1979-Dec-19
Date Last Modified 2023-Sep-19
Created By
Revised By

Commodities

Primary Commodities: Copper

Secondary Commodities: Nickel, Gold, Silver



Location

Township or Area: Baldwin, Porter

Latitude: 46° 21' 50.5"    Longitude: -81° 44' 59.62"

UTM Zone: 17    Easting: 442315.911   Northing: 5134768.148    UTM Datum: NAD83

Resident Geologist District: Sudbury

NTS Grid: 41I05SW

Point Location Description: Point

Location Method: AMIS Site Visit



Exploration History

1929: T.H. Rea & L.K. Fletcher; 13 trenches and 10 drill holes (5,665 feet). 1955: Federal Kirkland Mining Co. Ltd.; 1955-1957 - 16 trenches, 19 drill holes (7,321 feet), geological survey. 1958: Brismil Mines Ltd (subsidiary of Federal Kirkland) & Cadmet Mines Ltd. (Brismil + 3 other companies. 1962-1963 - 7 drill holes (3,940 feet) 1965 - 7 drill holes (3,253 feet) 1965: Globe Exploration & Mining Co. 1966-1967 - 14 drill holes (6,809 feet) 1966: Terrex Mining Co. Ltd. (change of name) 1967: Sheridan Geophysics Ltd. shared exploration costs with Brismal Mines Ltd. (to 1977). Bringing Spanish River Mines Ltd. into production. 1969 Kidd Copper Mines (leased mine) 1968-1970 - construct decline and drifts. 1969-1970 - Production


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Baldwin-SP007 41I05SE0019 41I05SE0019
Baldwin-SP008 41I05SE0020 41I05SE0020
Baldwin-0010-A1 41I05SE0090 41I05SE0090
Baldwin-0012-C1 41I05SW0034 41I05SW0034
Baldwin-0042-B1 41I05SW0026 41I05SW0026
Baldwin-0018 41I05SW0033 41I05SW0033
Baldwin-0017-C1 41I05SW0029 41I05SW0029
Baldwin-0042-E1 41I05SE0006 41I05SE0006
Baldwin-0037-A1 41I05SE0005 41I05SE0005

Geology

Province: Southern

Supergroup: Huronian Supergroup

Geological Age: Paleoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Sandstone 1 Quartzites, Grewackes Alteration/Shear Zone Host

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicOre
2ChalcopyriteEconomicOre
3PyrrhotiteEconomicOre

Mineralization Comments

Mar 16, 2023 (Q Unknown) - Mineralization: stringers and diss cp, po, py in silicified shear @ N83E in Bruce Fm. Location: correct location is plotted on map 2 of GDIF255; location incorrect in Sudbury MDIR



Mineral Record Details

Classification
RankClassification            
1 Hydrothermal
1 Vein
Characteristics
Rank Characteristic            
1 Disseminated
1 Vein
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Baldwin (main zone) 1968 Unclassified 992758 RGP OMI (MDI) files from 1970s. Classified as "reserve" with grade of 1.49% copper over 5.6 meters (18.5 feet).
Production Data
Year Tonnes Commodities Reference Comment
1995 10000 Report 2.27026 In 1995, 10,000 tons of copper ore was shipped from the Baldwin Mine on claim 1197772 (some 800 meters north of the property boundary and was milled by Inco. Proceeds from an $85,000 government grant were used and the Company ran out of money.
1970 51131 Silver 2698 Ounces
Gold 163 Ounces
Copper 1861380 Pounds
RGP OMI (MDI) files from 1970s. From 51,131 tonnes (56,362 tons) produced 844 tonnes (1,861,380 lbs) copper, 2,698 t-oz silver, 162 t-oz gold. Calculated recovery grades: 0.92% Cu, 0.055 t-oz/tonne (0.05 t-oz/ton) Ag, trace Au.
1969 81514 Silver 2652 Ounces
Gold 184 Ounces
Copper 1664462 Pounds
RGP OMI (MDI) files from 1970s. From 81,515 tonnes (89,954 tons) produced 755 tonnes (1,664,462 lbs) copper, 2,652 oz-t silver, 184 oz-t gold. Calculated recovery grades: 0.92% Cu, 0.033 oz-t/tonne (0.03 oz-t/ton) Ag, trace Au. Recovery stated as 98% in August 1969.

References

Map - Geological compilation series, Pamour sheet, District of Cochrane

Publication Number: P0698 Scale: 1:126,720    Date: 1997

Author: Bright E.G., Hunt D.S.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


Folio - Baldwin Township, District of Sudbury

Publication Number: GDIF255 Date: 1997

Author: Sudbury RGO

Publisher Name: Ontario Geological Survey

Location:


Mono - Annual report on mining operations in Ontario during calendar year 1969

Publication Number: ARV79 Page: 97  Date: 1998

Author: Riddell G.S.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


Mono - Copper, nickel, lead and zinc deposits of Ontario

Publication Number: MDC012 Page: 230  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Geological series, Panache Lake area (west part), districts of Sudbury and Manitoulin

Publication Number: P0668 Scale: 1:63,360    Date: 1997

Author: Card K.D.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


Folio - Baldwin Township, District of Sudbury

Publication Number: GDIF255 Date: 1997

Author: Sudbury RGO

Publisher Name: Ontario Geological Survey

Location:


File - Sudbury MDI Records Baldwin Township

Publication Number: Date: 1996

Author:

Publisher Name:

Location: Sudbury RGP


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For detailed information regarding this mineral record please contact the Sudbury Resident Geologist District Office