Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41P12SW00142

Record: MDI41P12SW00142

General

Mineral Record Identification
Record Name(s) Sheppard #5 & #6 - 1932, West McWatters - 1984, Siragusa #62 - 1993
Related Record Type Simple
Related Record(s)
Record Status Developed Prospect Without Reported Reserves or Resources
Date Created 2002-Jun-06
Date Last Modified 2022-Sep-22
Created By
Revised By

Commodities

Primary Commodities: Gold

Secondary Commodities: Copper



Location

Township or Area: Chester

Latitude: 47° 33' 2.03"    Longitude: -81° 54' .08"

UTM Zone: 17    Easting: 432281.58   Northing: 5266741.69    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 41P12SW

Point Location Description: Stripped outcrop north of the main trench on the #6 vein

Location Method: Field Visit with GPS

Access Description: Take the Mesomikenda Lake/Young Shannon access roads off of Highway 144 to the upper Three Ducks Lake and travel by canoe south into the middle Three Ducks Lake. The showings are south of the rapids connecting the two lakes.



Exploration History

1931: R. S. Sheppard - discovery of veins. 1932: West McWatters Syndicate - property optioned; prospecting, trenching. 1935: Buffalo-Ontario Gold Mining - property optioned, no work on file. 1938: Buffalo Shepmac Gold - sampling, 5 ddh. 1973: Park Precious Metals.- Prospectus. 1979: Canadian Crest Gold MInes Ltd. - small scale mining operation, ore milled at Young Shannon mill. 1981: Stralak Resources - geological appraisal of property. 1982: Jarvis Resources - ground geophysics, sampling, 295 tonne bulk sample. 1987-88: Canorth Resources - prospecting, mapping, stripping, trenching, ground geophysics, 9 ddh (629 m).


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-2030 / 63.3063 41P12SW0105 41P12SW0105
T-3278 / 63.5176 / OM87-5L-104 41P12SW0036 41P12SW0036
T-6382 / 2.50730 20000007118 20000007118

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Geological Age: Neoarchean   Geochronological Age: 2740 MA   Geochron. Age Ref.: GSC OF 3384A



Geology Comments

Dec 07, 2005 (A Wilson) - The mineralized quartz veins are associated with zones of foliation and shearing that transect the generally massive granitic rocks. Primary orientation of quartz veins is approximately 330 deg, dipping steeply to the west. Quartz filled extension fractures have an almost perpendicular orientation at approximately 220 degrees.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Diorite 1 Diorite Host
Tonalite 2 Host
Vein 3 Quartz Host
Vein 4 Quartz Vein Host

Lithology Comments

Dec 07, 2005 (A Wilson) - The mineralization is hosted in a leucocratic tonalite with roughly equal amounts of quartz and plagioclase. Biotite is the main mafic mineral with minor amounts of clinopyroxene. Magnetite and chlorite occur in minor amounts as an in situ alteration product of biotite. Chlorite also occurs as fracture and vein fillings. Sericite alteration of the plagioclase is much more widespread. Near the mineralized zone, the rock is marked by a grain size reduction, abundant sericite and carbonate in the rock matrix. Trace amounts of hematite occur in these sheared tonalites. The host rock consists of quartz diorite to granodiorite which are typical phases in the Chester Granitoid complex. The more felsic phases occur as small intrusive bodies cutting the mafic phase. A well mineralized quartz vein occurs between a porphyritic granodiorite in the hanging wall and a diorite in the foot wall. Along the hanging wall contact, a strong schistosity and fracturing is developed.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
2ChalcopyriteEconomicOre
1PyriteEconomicGangue
2GalenaEconomicGangue
3HematiteEconomicGangue
4MagnetiteEconomicGangue
5PyrrhotiteEconomicGangue
6SphaleriteEconomicGangue
7TourmalineEconomicGangue
ChloriteAlterationChloritic1WeakVeins
MalachiteAlterationSupergene2WeakReplacement

Mineralization Comments

Dec 07, 2005 (A Wilson) - The 325 ton bulk sample taken in 1979 had a grade of 6.03 g/t Au. A 295 tonne bulk sample collected in 1982 returned an assay of 5.8 g/t Au. The best assay returned from the 1987 diamond drill program was 1.1 g/t Au over 0.7 m. A grab sample collected by the OGS in 1993 returned a value of 0.03 g/t Au and 0.1 g/t Ag.



Mineral Record Details

Classification
RankClassification            
1 Mesothermal
Characteristics
Rank Characteristic            
1 Sheared
2 Vein

Mineral Zones - Size and Shape

Rank: 2       Structure Type: Shear

Rank: 1       Structure Type: Vein

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Tabular 60 1 70 90

Site Visit Information

Date: Jun 06, 2002

Geologist: A Wilson

Notes: A number of striped outcrops lie in the viciniyt of the #6 vein. It was one of these outcrops that was examined at the time of the visit. This outcrop is located near the north end of the stripped area and is readily accessible by boat off the small river joining the Upper and Middle Three Duck Lakes. Outcrop consists of medium to coarse-grained gabbroic rock intruded by a medium to coarse-grained dioritic intrusive. Quartz veins, 2-4 cm, are associated with diorte intrusive generally concordant. Quartz filled tension fractures are commonly seen associated with the quartz veining as well as are small mm scale tourmaline crystals within the quartz. Scattered pyrite was observed along margins of quartz veins and within dioritic wall rock. Quartz veins are commonly seen as being rusty at various locations along surface, but taking a good sample was difficult. The primary orientation of the quartz veins are in the NW direction (330) dipping steeply to the west. Quartz filled tension gashes have an almost perpendicular orientation at approximately 220 degrees.



Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
SHEPPARD 1980 Assay 290 OFR 5912 VOL 2. P. 423 Gold 6.03 Grams per Tonne
Production Data
Year Tonnes Commodities Reference Comment
1980 290 Gold 1779 Grams
OFR 5912 VOL 2 P. 423

References

Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario

Publication Number: GSC OF 1087 Page: 41P-72  Date: 1985

Author: Rose, D. G.

Publisher Name: Geological Survey of Canada

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


Map - Three Duck Lakes area, District of Sudbury, Ontario

Publication Number: ARM41D Scale: 1:47,520    Date: 1997

Author: Laird H.C.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Geological series, Precambrian geology of Chester and Yeo townships, and parts of Neville and Potier townships, Jerome area, Sudbury District

Publication Number: P2449 Scale: 1:15,840    Date: 1981

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Geology, Geochemistry and Mineralization of the Southern Margin of the Swayze Belt

Publication Number: OFR5844 Page: 91-82  Date: 1993

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:


Map - Precambrian Geology, Parts of Chester, Neville, Potier and Yeo Townships

Publication Number: OFM0214 Scale: 1:15,840    Date: 1993

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:


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: 421-423  Date: 1995

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

Publisher Name: Ontario Geological Survey

Location:


Map - Geology, Swayze greenstone belt, Gogama, Ontario

Publication Number: OF3384G Scale: 1:50,000    Date: 1999

Author: Heather, K B; Shore, G T

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/210455


Part - Geology of the Three Duck lakes area

Publication Number: ARV41-03.001 Date: 1998

Author: Laird H.C.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Geology of the Makwa-Churchill area

Publication Number: ARV43-03.002 Page: 78  Date: 1998

Author: Laird H.C.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Gold deposits of Ontario, part 2, part of District of Cochrane, districts of Muskoka, Nipissing, Parry Sound, Sudbury, Timiskaming, and counties of southern Ontario

Publication Number: MDC018 Page: 94  Date: 1979

Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.

Publisher Name: Ontario Geological Survey

Location:


Mono - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file

Publication Number: OFR5467 Date: 1983

Author: Hodgson C.J.

Publisher Name: Ontario Geological Survey

Location:


Report an Error

We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.


Terms of Use

Please review our Terms of Use agreement for this data product.


Ministry Contact Information

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