Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31M05NE00073

Record: MDI31M05NE00073

General

Mineral Record Identification
Record Name(s) Peterson Lake Silver Cobalt Mining Co. Ltd. - 1906, Mining Corporation of Canada - 1922, Trinova Cobalt Silver Mines - 1935, Cobalt Lode Silver Mines Ltd. - 1952, Silver Town Mines Ltd. - 1968, Coballoy Mines and Refiners Ltd. - 1955, Peterson Lake Decline - 1983
Related Record Type Compound
Related Record(s)
Record Status Past Producing Mine Without Reserves or Resources
Date Created 1983-Jun-29
Date Last Modified 2023-Aug-24
Created By
Revised By

Commodities

Primary Commodities: Silver, Cobalt

Secondary Commodities: Nickel



Location

Township or Area: Coleman, Coleman

Latitude: 47° 23' 16.28"    Longitude: -79° 40' 33.35"

UTM Zone: 17    Easting: 599931.64   Northing: 5249116.5    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 31M05NE

Point Location Description: Lot: N1/2 SE1/4 Lot 4 Conc: V

Location Method: Data Compilation



Exploration History

1906-30: Sasquehanna Shaft - sunk to 210 ft.; Little Nip or No. 3 shaft – sunk to160 ft.; No. 2 winze – sunk to 273 ft.; No 1 winze – 273’ to 320’; Island No. 19 shaft; sunk to 100 ft.; Union Pacific Shaft – sunk 100 ft.; St. Anthony Shaft – sunk 150’ with extensive lateral work.; Peterson Lake No. 2 Shaft – sunk 225 ft. with levels at 125’ and 200’; Peterson Lake No. 1 Shaft – sunk to 217’. 1963-68: several silver producing veins discovered after extensive development. 1988: decline started to explore lower contact diabase below Peterson Lake .1982: Silver Century Explorations Ltd. – 43-DDH-10, 831 ft. 1988:Agnico-Eagle Mines Limited together with Silver Century Explorations announced a joint exploration program; the initial phase involves the collaring of a new decline ramp on the western shore of Peterson Lake.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
OMEP 81-8-C-50/63.4002 31M05NE0412 31M05NE0412
63.4172 31M05NE0148 31M05NE0148
OM19-PA4-C-80 / 63.3751 31M05NE0408 31M05NE0408
CO-0777/63.3751/ /OM19-PA4-C-80 31M05NE0408 31M05NE0408

Geology

Province: Southern

Subprovince: Cobalt Basin

Supergroup: Huronian Supergroup

Formation Group: Cobalt Group

Geological Age: Paleoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Olivine Gabbro 1 Olivine Host
Olivine Gabbro 2 Olivine Intrudes
Conglomerate 3 Conglomerate Footwall
Vein 4 Conglomerate Footwall

Lithology Comments

Jul 31, 2017 (A Wilson) - Silver was produced from the Seneca-Superior Lease from 1912-1916. A total of 5,527,597 oz. of silver was mined from this lease. A total of 27,303 lbs. cobalt; and 918076 oz. silver; were recovered between 1908 and 1967. Most of the early work done on this property was to explore extension of veins or vein system occurring on the Nipissing properties to the west. Although ore was found in the easterly extensions of the vein systems occurring on RL.404, the total production on the Peterson Lake ground was very much smaller. Two sets of veins occur on the Peterson Lake ground - one of these strikes westerly and is possibly related to Keewatin structures, particularly the position of inter-flow sedimentary bands. The other set has a northeasterly strike and has a parallelism to the axis of the Peterson Lake diabase basin, To this set the writer would assign the Worth vein of the Seneca-Superior Lease and others in Peterson Lake, The vein structures in this set appear to be fractures and not faults; they are discontinuous and irregular. The productive horizon in the north arm of Peterson Lake was the Keewatin in the vicinity of the Keewatin - Nipissing contact. Whether the vein structures stopped near this contact or continued into it but were barren is not clear but the latter appears more likely.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1SilverEconomicOre
2ChalcopyriteEconomicOre

Mineralization Comments

Jul 31, 2017 (A Wilson) - Keewatin rocks and Cobalt sediments are intruded by Nipissing diabase sills. The diabase forms the west limb of the southwest trending Peterson Lake Diabase Basin. The Nipissing diabase sill intruded the Huronian and pre-Huronian rocks on the Peterson Lake property in such manner that a wedge shaped mass of Cobalt Series sediments was left below the bottom contact of the sill; this contact does not follow the Cobalt series-Keewatin contact nor is it approximately parallel to it. The diabase on the property is on the southwest limb of what the writer calls the Peterson Lake Basin. At Peterson Lake No. l shaft the Cobalt series is 185 feet thick and this is nearly its original thickness below the sill before erosion of the latter at this place. In plats of the diamond drilling done by Car-Pete Lease and kindly made available by A. L. Barry, who logged the core, the presence of a band of bedded greywacke up to19 feet thick in the basal conglomerate is shown. Below this band the conglomerate contains boulders of Keewatin rock predominantly; above the band red Lorrain granite boulders predominate. Silver-bearing veins occur in two sets; one of these strikes west and follows Keewatin interbanded chert; the other strikes southwest parallel to the axis of the Peterson lake Basin. Production is mostly restricted to the vicinity of the Keewatin-Nipissing contact. Base metal mineralization such as chalcopyrite and niccolite occurs as disseminated sulphides in the Keewatin rocks.



Mineral Record Details

Classification
RankClassification            
1 Vein (Cobalt-Type)
Production Data
Year Tonnes Commodities Reference Comment
1968 981668 NI 43-101 Rpt. 2008 Total Production 1908-1996 (intermittent)
1968 8331 Silver 28555356
Cobalt 12396
MRC 10, p.186-187 27,303 lb. Co; 1,058,076 oz. Ag

References

File - Resident Geologist files CO-0778, CO-0779, CO-0803

Publication Number: Date:

Author:

Publisher Name:

Location: Kirkland Lake RGP office


Map - Cobalt silver area, northern sheet, Timiskaming District

Publication Number: M2050 Scale: 1:12,000    Date: 1997

Author: Thomson R.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Geology of the mine workings of Cobalt and South Lorrain silver areas

Publication Number: ARV31-02.001 Page: 167-169  Date: 1998

Author: Knight C.W.

Publisher Name: Ontario Dept. of Mines

Location:


Article - Cobalt Resident Geologist's area - 1987

Publication Number: MP138.012 Page: 291  Date: 1997

Author: Owsiacki L., Anderson D.P.

Publisher Name: Ontario Geological Survey

Location:


Mono - Silver cobalt calcite vein deposits of Ontario

Publication Number: MDC010 Page: 186-187  Date: 1968

Author: Sergiades A.O.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Preliminary report on part of Coleman Township, concession 5, lots 1 to 6, District of Timiskaming

Publication Number: PR1961-04 Page: 57-70  Date: 1998

Author: Thomson R.

Publisher Name: Ontario Dept. of Mines

Location:


Publication - Castle Resources Inc. Technical Report on the Peterson Lake Property, Coleman Township, Ontario

Publication Number: Date: 2008

Author:

Publisher Name:

Location: Kirkland Lake RGO


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