Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41O10NE00060

Record: MDI41O10NE00060

General

Mineral Record Identification
Record Name(s) Shunsby South Showing - 1955
Related Record Type Simple
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 1993-May-20
Date Last Modified 2022-Sep-23
Created By
Revised By

Commodities

Primary Commodities: Copper, Zinc



Location

Township or Area: Cunningham

Latitude: 47° 42' 46.29"    Longitude: -82° 39' 14.54"

UTM Zone: 17    Easting: 375934.63   Northing: 5285711.23    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 41O10NE

Point Location Description: West end of area A stripping marked on a 1990 trench map

Location Method: Field Visit with GPS

Access Description: Easy access to the property is via a series of logging roads from the main haul road linking Sultan - Ramsay - Highway 144. From this Main Haul Road the turn-offs to be taken are the Blamey Road for 7km then the Cunningham Road. The Cunningham road goes north for about 8km where it splits into a crude T-junction running East West. From this point the trenches are a couple of kilometres further north along a base line and a series of trails from an old exploration camp off the eastern T-junction. Alternatively drill trails come in from the north via the old fire tower.



Exploration History

1904: Ridout Mining carried out prospecting. 1927: Prospectors found veinlets of sphalerite in iron formation. 1927: Ridout/Cunningham Mines carried out exploration and diamond drilling. 1954: Sootheran and Paul/Cominco carried out an EM survey and diamond drilling. 1955: Shunsby Mines completed 55 diamond drill holes totaling 5230 m, and geological mapping. 1962-64: Shunsby Mines completed magnetic and Turam EM surveys, soil geochemical survey, diamond drilling. 1968-1971: Consolidated Shunsby Mines completed diamond drilling and a prospectus. 1974: Granorla Exploration completed geochemical surveying, 8 diamond drill holes totaling 3,404 ft. 1975: Consolidated Shunsby Mines completed 163 diamond drill holes totaling 57,994 ft.1979: Placer Development completed ground EM and magnetic survey, soil geochemistry. 1981-82: MW Resources carried out 31 diamond drill holes, lake sediment and water sampling. 1990-91: Kirkton Resources carried out compilation, core re-sampling, trenching, sampling, geological mapping, EM and magnetic surveys. 1993: Phelps-Dodge completed diamond drilling.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-2819/ 63.4004 / OM-81-5C-55 41O10NE0035 41O10NE0035
63.2919 41O10NE0052 41O10NE0052
32 41O10NE0046 41O10NE0046
63.3703 41O10NE0049 41O10NE0049
T-2062 / 63.426 41O10NE0061 41O10NE0061
T-3358 / 63.6118 / OM 90-028 / OM91-060 41O10NE0087 41O10NE0087
63A.336 41O10NE0059 41O10NE0059

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Tectonic Assemblage: Hong Kong

Geological Age: Neoarchean   Geochronological Age: 2729 MA   Geochron. Age Ref.: GOO VOL 1

Metamorphism Type: Regional

Metamorphism Grade: Greenschist



Geology Comments

Dec 07, 2005 (S Fumerton) - Differential movement along the argillaceous beds is not as conspicuous as at the main showing whereas the fracturing due to faulting is as strong. Two main fault trends are present, an east west trend including the 'Joubin Fault' and a southeast trend associated with brecciation.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Silicate Ironstone 1 Chert Conglomerate, Brecciated Host
Mafic pillowed flow 2 Basalt Variolitic, Pillowed Adjacent
Diorite 3 Diorite Tholeiitic Contains
Porphyry-unsubdivided 4 Adjacent
Felsic Tuff 5 Tuff Crystal, Lapilli, Breccia Host
Terrigenous-Clastic-Unsubdivided 6 Graphitic Shale Host

Lithology Comments

Dec 07, 2005 (A Wilson) - Mineralization is confined to a series of banded iron formation within a sequence of mafic to felsic metavolcanics. The entire package has been overturned with the mafic metavolcanics structurally beneath the iron formation and felsic metavolcanics above. The iron formation has been divided into two main units. The Upper Chert has thicker chert beds and consists of chert conglomerates. The Lower Chert consists of a mixture of lithologies. At the showing, felsic metavolcanics structurally overlie the chert horizons, but are intercalated with the chert along strike. These felsic rocks are primarliy tuffaceous with banded crystal, lapilli and breccia tuffs being present together with some local flows. Chloritic and sericitic alteration is present in the matrix of these tuffs. The mafic metavolcanics (lower diorite) is fine to coarse grained and has a tholeiitic affinity. The whole sequence has been intruded by an irregular plug of diorite called the digestive diorite.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyrrhotiteEconomicOre
2SphaleriteEconomicOre
1PyriteEconomicGangue
2ChalcopyriteEconomicGangue
3GalenaEconomicGangue
ChloriteAlterationChloritic1MediumReplacement

Mineralization Comments

Dec 07, 2005 (S Fumerton) - Various interpretations have been advanced to explain the mineralization including 1) a chemical sedimentary origin distal from any base metal source, 2) a sedimentary - exhalative model proximal to a volcanic source, and 3) a primary sedimentary origin remobilised during regional tectonism and metamorphism associated with the emplacement of various dykes. This debate is a result of various features characteristic of each process which include fine grained graded sulphide beds, coarse grained subhedral sulphides along fractures, massive sulphide veins etc. These features also have a major impact on the uneven grade of the known mineralization. In a zone adjacent to a felsic dyke there are a number of massive galena trails and veins where the dykes cut through the argillaceous and sulphide horizons.



Mineral Record Details

Classification
RankClassification            
2 Exhalative
1 Sedimentary
Characteristics
Rank Characteristic            
1 Stratabound
2 Vein

Mineral Zones - Size and Shape

Rank: 2       Structure Type: Breccia

Rank: 1       Structure Type: Fault

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Tabular 200 60 170 30 N/A N/A
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
LOWER CHERT 1990 Possible 1218638 Sobie, P.A. 1990 Report on Phase 1a exploration program on the Shunsby Property, Copper .63 Percent, Zinc 3.15 Percent
UPPER CHERT 1990 Possible 1374338 Sobie, P.A. 1990 Report on Phase 1a exploration program on the Shunsby Property, Copper .22 Percent, Zinc 2.67 Percent
SOUTH ZONE 1981 Possible 880000 Fairbairn, D. 1982 Report on the diamond drilling exploration program 1981 and p Copper 1.2 Percent, Zinc 4.9 Percent

References

File - Resident Geologist files T-2050

Publication Number: Date:

Author:

Publisher Name:

Location: Timmins RGP office


Map - Geological series, Cunningham Township, District of Sudbury

Publication Number: P2339 Scale: 1:15,840    Date: 1980

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Geology of the Chapleau area, districts of Algoma, Sudbury, and Cochrane

Publication Number: R157 Page: 234-240  Date: 1977

Author: Thurston P.C., Siragusa G.M., Sage R.P.

Publisher Name: Ontario Division of Mines

Location:


Map - Cunningham and Garnet townships, Sudbury District

Publication Number: M2503 Scale: 1:31,680    Date: 1987

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:


Publication - Mineral occurrences in Woman River district, Ontario; Geological Survey of Canada, Summary Report 1929, pt. C

Publication Number: Sum Rep 1929 C Date: 1930

Author: Bannerman, H M

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/102021


Map - Geology, Swayze greenstone belt, Sultan, Ontario

Publication Number: OF 3384E Scale: 1:50,000    Date: 1999

Author: Heather, K B; Shore, G T

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/210453


MonoMap - Mineral Prospects of the Swayze Greenstone Belt (Volume 1, Parts of NTS 41 O and Volume 2, Parts of NTS 41 P, 42 A and 42 B)

Publication Number: OFR5912 Page: 93-95  Date: 1995

Author: Fumerton S.L., Houle K.A.

Publisher Name: Ontario Geological Survey

Location:


Folio - Cunningham Township - Unpublished GDIF

Publication Number: GDIF Date: 1986

Author: Resident Geologist Staff

Publisher Name: Ontario Geological Survey

Location: Timmins RGO


Publication - Review and assessment of Shunsby Property, Cunningham Patented Claims, Cunningham Township, 23p.

Publication Number: Date: 2012

Author: F. Milanes and H. Ngo

Publisher Name:

Location: Timmins RGO


Publication - Technical Report On The Sunsby Base Metal Property Cunningham Township, 112p.

Publication Number: NI 43-101 Date: 2013

Author: P. Sobie

Publisher Name:

Location: Timmins RGO


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