Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41J06SE00003

Record: MDI41J06SE00003

General

Mineral Record Identification
Record Name(s) Glagoma - 1969
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-Sep-08
Created By
Revised By

Commodities

Primary Commodities: Copper



Location

Township or Area: Gladstone

Latitude: 46° 17' 23.66"    Longitude: -83° 12' 17.32"

UTM Zone: 17    Easting: 330172.002   Northing: 5128621.347    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 41J06SE

Point Location Description: Two shafts and an adit

Location Method: Conversion from MDI

Access Description: 1.6 kilometres north east of Iron Bridge, approximately 700 metres west of the east boundary of Gladstone Township.



Exploration History

1916-17 Two shafts sunk by Sudbury Copper Co. Ltd. Main shaft is 250 feet deep, levels at 150 and 250 feet, with a minor amount of drifting. In 1917, produced 1785 lbs. of Cu, valued at $468., from 28.8 tons of ore. 1951 723 feet of d.d. in 6 holes by Glagoma Copper Mines Ltd. 1956 2068 feet of d.d. in 6 holes by International Cobalt and Silver Mining Co. Ltd. 1962 Adit, crosscutting, stoping by R.F. Fry and Associates Ltd. Produced 22.2 tons with average grade of 1.40% Cu; and 138.1 tons with average grade of 0.96% Cu.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Gladstone-0013-A1 41O06SE0051 41O06SE0051
Gladstone-0011-C1 41O06SE0050 41O06SE0050
Gladstone-0010-A1 41O06SE0049 41O06SE0049

Geology

Province: Southern

Subprovince: Cobalt Basin

Supergroup: Huronian Supergroup

Geological Age: Paleoproterozoic  



Geology Comments

Dec 07, 2005 (G Bennett) - The country rock is diabase with granite intrusions. The ore disposition ischalcopyrite in a quartz carbonate vein which has been traced at intervals along a strike length of 1 200 feet, with the vein open at both ends. The vein strikes N 80 E and dips 85 degrees to the north. Exposed widths are from two to seven feet. At the western end a continuous surface showing for a length of 150 feet averages 3.5% copper across a width of four feet. This ore shoot is further exposed along the ends of a shallow shaft to a depth of twelve feet. The shaft is now inaccessible for sampling but a considerable amount of chalcopyrite can be seen in the vein across widths of about six feet. A sample taken across the vein, from the end of the shaft a few feet below the surface assayed 5.3% copper across a width of five feet. On the top of the hill, about six hundred feet east of the west ore shoot, there is an old timbered shaft now caved and inaccessible. From the size of the dump it is estimated to have a depth of around 250 feet. There is no authentic information as to what was found in the underground workings but some fair grade copper ore can be seen on the dump. Three hundred feet to the east of this shaft the vein is exposed for 100 feet, carrying chalcopyrite, but too deeply oxidized to permit proper sampling.


Dec 07, 2005 (P Beach) - A quartz carbonate chalcopyrite vein cuts granophyric to dioritic gabbro. The vein strikes N80E, the dip is not recorded but is probably close to 90. West section of the vein is 250 feet long; east section is 400 feet long; the sections are separated by a covered interval 500 feet long. The vein is up to 7 feet wide. In 1917, 1785 lbs of Cu was produced from 28.8 tons of ore. In 1962, production included 22.2 tons with an average grade of 1.40% Cu; and 138.1 tons with an average grade of 0.96% Cu (ODM 1969 MRC 12 P 25).




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ChalcopyriteEconomicOre
1PyriteEconomicGangue
2QuartzEconomicGangue
3CarbonateEconomicGangue

Mineral Record Details

Site Visit Information

Date: Aug 12, 1999

Geologist: G Bennett

Notes: West section of the vein is 250 feet long; east section is 400 feet long; the sections are seperated by a covered interval 500 feet long. The vein is up to 7 feet wide. In 1917, produced 1785 lbs. Cu from 28.8 tons of ore (ODM 1957). In 1962, produced 22.2 tons with average grade of 1.40% Cu; and 138.1 tons with average grade of 0.96% Cu (ODM 1963).



Production Data
Year Tonnes Commodities Reference Comment
1962 163 Copper 1
ODM MRC 12, P. 25 1 ENTERED FOR MASS TO MEET REQUIRED FIELD ENTRY
1917 29 Copper 810
ODM MRC 12, P. 25

References

Map - Iron Bridge area, District of Algoma, Ontario

Publication Number: M2012 Scale: 1:31,680    Date: 1997

Author: Robertson J.A.

Publisher Name: Ontario Dept. of Mines

Location:


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:


MonoMap - Geology of the Iron Bridge area, District of Algoma

Publication Number: R017 Page: 52-55  Date: 1997

Author: Robertson J.A.

Publisher Name: Ontario Dept. of Mines

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:


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

Publication Number: MDC012 Page: 25-26  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


Compend - Summary of field work, 1962, by the Geological Branch, Ontario Department of Mines

Publication Number: PR1962-04 Page: 18  Date: 1998

Author: Thomson J.E.

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:


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 - Pearsonfile Computer Tape of Copper Deposits and Occurrences in the North Shore Region of Lake Huron, Ontario; Geological Survey of Canada, Open File 1039

Publication Number: OF 1039 Page: 59  Date: 1985

Author: Pearson, W N; Bretzlaff, R E; Carriere, J J

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129998


Publication - Copper deposits and occurrences in the north shore region of Lake Huron, Ontario

Publication Number: Paper 83-28 Page: 27-28  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


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: 83-84  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999


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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office