Ontario Geological Survey
Permanent Link to this Record:
MDI41J06NE00046
| Record Name(s) | Crownbridge - 1969, Iron Bridge - 1991, Iron Bridge Group - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1991-Sep-01 |
| Date Last Modified | 2022-Oct-13 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Township or Area: Kamichisitit
Latitude: 46° 29' 32.27" Longitude: -83° 2' 22.7"
UTM Zone: 17 Easting: 343474.132 Northing: 5150768.368 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41J06NE
Point Location Description: Precise
Location Method: Conversion from MDI
Access Description: 3 kilometres east of the west boundary of Kamichisitit Township and 4.3 kilometres south of the north township boundary.
1942 Sampling and geol. report by Erie Canadian Mines Ltd. 1958-1960: 75 d.d. holes totalling 30,133 feet by Andover Canadian Mines Ltd. These drill records are fairly complete and are incorporated as a part of the company records of Crownbridge Copper Mines Ltd. From these records D.C. Mckechnie, P.Eng, Sudbury, Onatrio, estimated drill indicated ore reserves of 190 000 tons grading 2.01% copper across and average width of 6.1 feet above the 500 foot horizon in the Central, West, and J zones. Since then the Crownbridge company has drilled some ten additional holes totalling about 6800 linear feet. The drilling was done to the east of the central zone. 1963-1965: 46 d.d. holes totalling 26,867 feet plus further drilling for which records are not available by Crownbridge Copper Mines Ltd. 1966-1967: 250 ton per day mill constructed on property by Copper Concentrators Ltd., for custom milling of material from this and other nearby deposits. copper Concentrators declared bankruptcy in 1967. Crownbridge sank a 30 foot deep shaft. 1968: Property purchased by Cannon Mines Ltd.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Kamichisitit-0018-A1 | 41J06NE0019 | 41J06NE0019 |
| Kamichisitit-0030-B1 | 41J06NE0001 | 41J06NE0001 |
| Kamichisitit-0031-B1 | 41J06NE0005 | 41J06NE0005 |
| Kamichisitit-0035-B1 | 41J06NE0022 | 41J06NE0022 |
| Kamichisitit-0022 | 41J06NE0014 | 41J06NE0014 |
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Geological Age: Paleoproterozoic
Dec 07, 2005 (G Bennett) - Sediments of the Gowganda Formation are cut by a fault zone which strikes N75W and appears to dip 70N. Fault zone has been filled by quartz veins, in which chalcopyrite occurs as small, irregular disseminated blebs. Pyrite and Carbonate also occur in the veins.
Dec 07, 2005 (P Beach) - Quartz veins in fault zone cutting Gowganda Formation.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Quartz | Economic | Gangue | ||||
| 3 | Carbonate | Economic | Gangue |
Date: Aug 11, 1999
Geologist: G Bennett
Notes: The mineralized portion of the vein system has a known strike length of 4200 feet; the width ranges from 1 to 30 feet, and averages 6.5 feet. It has been explored by drilling to a depth of 1000 feet, although most of the drilling has been confined to depths of 500 feet or less. Drilling results show that copper mineralization is confined to a number of lenses within the vein system. To a depth of 1000 feet, total reserves, including 10 % allowance for dilution, are stated to be 415 000 tons, grading 1.8% Cu, over an average width of 6.5 feet (Northern Miner, May 27, 1965).
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Crownbridge | 1998 | Proven | 160000 | Wilson, Ann, 1998, Mineral Deposits not Being Mined in SSM District in 1998 | 205000 tonnes at unstated grade possible | Copper 2.03 NA |
Map - Geological compilation series, Blind River-Elliot Lake sheet, districts of Algoma and Sudbury
Publication Number: P0304 Scale: 1:126,720 Date: 1997
Author: Giblin P.E., Leahy E.J., Robertson J.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Sault Ste. Marie-Elliot Lake sheet, geological compilation series, Algoma, Manitoulin and Sudbury districts
Publication Number: M2108 Date: 1967
Author: Giblin P.E., Leahy E.J.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Sault Ste. Marie-Elliot Lake, geological compilation series, Algoma, Manitoulin and Sudbury districts
Publication Number: M2419 Scale: 1:253,440 Date: 1979
Author: Giblin P.E., Leahy E.J.
Publisher Name: Ontario Geological Survey
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 94 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geology, Wakwekobi Lake-Dean Lake area, District of Algoma, Ontario; Geological Survey of Canada, "A" Series Map 1415A
Publication Number: Map 1415A Scale: 1:50,000 Date: 1975
Author: Frarey, M J
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/109096
Publication - Canadian mineral deposits not being mined in 1989; Department of Energy, Mines and Resources, Canada, Mineral Bulletin MR 223
Publication Number: MR 223 Date: 1989
Author:
Publisher Name: Department of Energy, Mines and Resources
Location:
Publication - Copper deposits and occurrences in the north shore region of Lake Huron, Ontario
Publication Number: Paper 83-28 Page: 27 Date: 1985
Author: Pearson, W N; Bretzlaff, R E; Carrière, J J
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/120312
Mono - Preliminary report on copper, nickel, lead, and zinc deposits of Ontario (second edition, May, 1952)
Publication Number: PR1952-04 Page: 8 Date: 1998
Author: Thomson J.E., Chisholm E.O., Greer W.L.C., Hogg N., Savage W.S., Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 83 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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