Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C08SW00024

Record: MDI42C08SW00024

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Copper

Location

Township or Area: Finan

Latitude: 48° 18' 42.13"    Longitude: -84° 24' 57.21"

UTM Zone: 16    Easting: 691591.43   Northing: 5354173.01    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 42C08SW

Point Location Description: Old pits on quartz veins

Location Method: Other Literature

Access Description: Access is via an 18 km all-weather gravel road that turns off of highway 519 just west of the town of Dubreuilville. Dubreuilville is on highway 519, 44 km east of the junction of Highway 17 and 519. The occurrence is located on the south east side of Maskinonge Lake and is most easily accessed by following the water intake road from the Kremzar mill to Maskinonge Lake.

Exploration History

1930's: Michael Syndicate - stripping, trenching. 1985: Ferderber Geophysics - airborne geophysical survey.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Michipicoten

Tectonic Assemblage: Wawa

Geological Age: Neoarchean   Geochronological Age: 2750 MA   Geochron. Age Ref.: GOO VOL 1

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (A Wilson) - The deposit lies within the Northern Domain of the Goudreau Lake Deformation Zone. The GLDZ is up to 4.5 km in width and strikes in a gentle sigmoid-form for at least 30 km, subparallel to the stratigraphy and the regional foliation. In the immediate Goudreau-Lochalsh area, the GLDZ is coincident with a major contact between Cycle 2 and Cycle 3 volcanics. There is a strong structural control of the gold-bearing quartz veins systms within each of the 070-075 striking high-strain zones within the deformation zone. The Northern Domain of the GLDZ is located immediately south of the Maskinonge Lake stock and is composed of brittle to brittle-ductile high-strain zones oriented at high angles to the 70 degree striking regional foliation These narrow brittle to ductile high-strain zones are up to tens of metres wide and may contain concordant quartz veins, and millimetre- to centimetre-scale brittle shears or fractures. The NE striking high-strain zones display sinistral, oblique-slip displacement, while the NW-striking shears display dextral, olblique-slip displacement.

Lithology

Lithology Comments

Dec 07, 2005 (A Wilson) - The occurrence has been described as a fine-grained dike of silicified porphyry intruding sheared mafic metavolcanic rocks. The porophyry is schisted an silicified in places. The sheared zone along the dike is 8-10 feet wide in places and a band about 2 feet wide heavily mineralized with sulphide lies in this zone.

Mineralization

Mineralization Comments

Dec 07, 2005 (A Wilson) - There are no published assays for this occurrence. Moore reports that Michael panned gold from the mafic metavolcanics in the vicinity.

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 2       Structure Type: Shear

Rank: 1       Structure Type: Vein

References

Map - Goudreau-Lochalsh area, District of Algoma, Ontario

Publication Number: ARM36B Scale: 1:63,360    Date: 1998

Author: Gledhill T.L., Collins W.H., Thomson E.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Goudreau gold area, District of Algoma, Ontario

Publication Number: ARM40E Scale: 1:31,680    Date: 1997

Author: Moore E.S.

Publisher Name: Ontario Dept. of Mines

Location:

Folio - Finan Township, District of Algoma

Publication Number: GDIF139 Date: 1997

Author: Sault Ste Marie RGO

Publisher Name: Ontario Geological Survey

Location:

Map - Goudreau-Lochalsh area, District of Algoma, Ontario

Publication Number: ARM49G Scale: 1:31,680    Date: 1997

Author: Bruce E.L.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Precambrian geology, Finan Township

Publication Number: P3168 Scale: 1:15,840    Date: 1990

Author: Sage R.P.

Publisher Name: Ontario Geological Survey

Location:

Part - Goudreau and Michipicoten gold areas, District of Algoma

Publication Number: ARV40-04.001 Page: 30-32  Date: 1998

Author: Moore E.S.

Publisher Name: Ontario Dept. of Mines

Location:

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

Publication Number: MDC012 Page: 110  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay

Publication Number: MDC013 Page: 44  Date: 1971

Author: Ferguson S.A., Groen H.A., Haynes R.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

Mono - Wawa mineral deposits data base

Publication Number: OFR5775 Page: 186  Date: 1991

Author: Frey E.D., Stewart R.C.

Publisher Name: Ontario Geological Survey

Location:

Book - Gold Occurrences of Wawa-Missinabie Area, unpublished report

Publication Number: Robinson Page: 51  Date: 1983

Author: Robinson, D.

Publisher Name:

Location: Timmins RGO

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: 182  Date: 1985

Author: Rose, D. G.

Publisher Name: Geological Survey of Canada

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

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Ministry Contact Information

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