Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41O09SE00017

Record: MDI41O09SE00017

General

Commodities

Primary Commodities: Copper, Gold

Secondary Commodities: Lead, Zinc, Molybdenum, Silver

Location

Township or Area: Huffman

Latitude: 47° 37' 5.84"    Longitude: -82° 9' 10.77"

UTM Zone: 17    Easting: 413360   Northing: 5274520    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 41O09SE

Point Location Description: Possible collar for hole #16 drilled by Jess-Mac GML on the east shore of Opeepeesway Lake.

Location Method: AMIS Site Visit

Access Description: Travel from Highway 144 west on the Sultan Road 38 km to the road leading to Opeepeesway Lake. By water travel to east arm and up Little Rice Creek to site.

Exploration History

1939: Mr. Scott, prospecting on behalf of Lake Shore Mines, carried out a stripping and trenching program centred on a quartz vein north of the Jess-Mac prospect. Reportedly some gold was panned from this vein in the Jessup Group which was staked in 1938 by M.J. Gaffney and A.S. Gaffney. 1949: Jess-Mac GML carried out an exploration program at the east end of Opeepeesway Lake. The program consisted of a magnetometer survey, trenching and 21 DDH. The best results obtained were several 1 g/t gold + 1.58% copper intervals in hole #17. In the following year a number of stratigraphic holes were drilled from the ice. During this work a lead/zinc zone was found on the north shore northwest of the previous best intersection. 1961: Jess-Mac GML resumed exploration in the area with a small diamond drill program which intersected some disseminated chalcopyrite. 1961: Worthington Mines continued exploration in the area with a small drill program. Most of the work was directed towards an area to the northwest but some drilling was done to the immediate north. 1966: Rio Tinto optioned the property and carried out a magnetic and electromagnetic survey which failed to give any encouragement. 1971: Falconbridge Nickel carried out VL electromagnetic, and magnetic, which covered the prospect. This work indicated that a number of conductors parallel to north east and northwest trending shears were probably intersected in the earlier drilling. Falconbridge's follow-up drilling was confined to anomalies in Osway Township. 1981: Osway Exploration carried out a magnetic and VLF electromagnetic survey which covered the prospect. Follow-up work in the next year consisted of trenching plus diamond drilling west of the prospect. 1993: Mr. W. Brereton staked the ground and optioned it to Cameco Corporation who then and carried out a regional till sampling program. 2007-2010: Augen Gold Corp.- AEM, AMAG, ARAD survey; EM, IP, Mag, GC, Samp.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Tectonic Assemblage: Ridout

Geological Age: Neoarchean   Geochronological Age: 2724 +/-4 MA   Geochron. Age Ref.: OF 3384 F

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Jun 30, 2016 (S Fumerton) - The host porphyry tends to be sheared in a number of directions, 100 º, 070 º and 160 º.

Lithology

Lithology Comments

Dec 07, 2005 (S Fumerton) - The host rock is a fine grained pale pink - green - grey felsic rock containing beta quartz phenocrysts. On the weathered surface the rock has a porcelain pink colour cut by numerous hair line quartz carbonate veins parallel to the foliation. The mineralization is hosted in a porphyry with variable zones of silicification and red alteration. This alteration tends to be stronger where the shearing and fracturing tends to be greater.

Mineralization

Mineralization Comments

Dec 07, 2005 (S Fumerton) - Sparse disseminated pyrite and chalcopyrite tends to be concentrated within thin, very fine grained, trails near altered material surrounding joints and fractures. Oxidation has resulted in the development of cuprite and native copper locally along fractures.

Dec 07, 2005 (A Wilson) - The best assays obtained by Jess Mac Gold Mines from their diamond drilling program were 1 g/t Au and 1.58% Cu. Samples collected by the ODM in 1949 returned values of 0.7 g/t Au, 0.3 g/t Au. A grab sample collected by the OGS in 1994 returned a value of 0.01 g/t Au and 0.6 g/t Ag.

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 2       Structure Type: Joint

Rank: 1       Structure Type: Shear

Site Visit Information

Date: Aug 19, 1949

Geologist: J Thomson

Notes: Visited Jess-Mac GML property at the east end of Opeepeesway Lake with M.J. Gaffney, President. Located on the east end of the porphyry body that extends down the lake from the Jerome mine. The porphyry is much sheared and altered by reddening or silicification in places. There are two varieties of the porphyry- a syenite porphyry and a quartz feldspar porphyry. The latter contains much quartz in the form of rounded eyes. The bulk of the porphyry is sheared, reddened or silicified. The sediments in the drill cores are badly sheared and consist of grit and pebble conglomerate, greywacke and arkose. Pebbles up to 1 inch in diameter are seen. In surface trenches and outcrops the sediments on the north side of the porphyry are strongly sheared. A few hundred feet northeast of camp on S.34,433 the sheared sediments in the trenches show strike of schistosity 120 deg, dip of schistosity 70deg S.W. A diabase dike runs slightly west of north and is exposed just west of the creek from Little Rice Lake and was cut in DDH #16. On the east side of the dike there is strong shearing and mud over a core length of 7 feet. This probably represents the fault zone that runs from Little Rice Lake to Little Rush River. Mineralization is very sparse throughout the porphyry and is confined largely to fractured zones. There is a pronounced reddening of the porphyry near the mineralization. It consists almost entirely of very fine grained pyrite and chalcopyrite. In hole #15 immediately under the lake bed the porphyry shows considerable oxidation along joints and fractures. In these areas the chalcopyrite has been altered to native copper and possibly some cuprite. The best copper assays are as follows. Hole #17 299'- 302' Au 0.03 oz./ton Cu 1.58% 332.5 - 335' Au 0.03 oz./ton Cu 1.58% The property possesses more merit as a gold prospect than for copper. ( PRECIS )

References

File - Resident Geologist files T-2151

Publication Number: Date:

Author:

Publisher Name:

Location: Timmins RGP office

Map - Geological series, Jerome area (east), District of Sudbury

Publication Number: P2370 Scale: 1:15,840    Date: 1980

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:

Publication - Preliminary report on Woman river and ridout map areas, Sudbury district, Ontario; Geological Survey of Canada, Memoir 157

Publication Number: GSC Mem 157 Page: 30  Date: 1929

Author: Emmons, R.C. and Thomson, E.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/100840

Map - Precambrian Geology, Huffman Township and Part of Arbutus Township

Publication Number: OFM0212 Scale: 1:15,840    Date: 1993

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:

Map - Geology, Swayze greenstone belt, Opeepeesway Lake, Ontario

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

Author: Heather, K B; Shore, G T

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/210454

Part - Geology of the Opeepeesway Lake area

Publication Number: ARV44-07.001 Date: 1997

Author: Laird H.C.

Publisher Name: Ontario Dept. of Mines

Location:

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

Publication Number: R157 Date: 1977

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

Publisher Name: Ontario Division of Mines

Location:

Publication - Molybdenum in Canada Part 2 : Molyfile - an index level computer file of molybdenum deposits and occurrences in Canada; Geological Survey of Canada, Economic Geology Report 33

Publication Number: Econ Geology 33 Date: 1982

Author: Kirkham, R V; McCann, C; Prasad, N; Soregaroli, A E; Vokes, F M; Wine, G

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/109258

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: 41O-49  Date: 1985

Author: Rose, D. G.

Publisher Name: Geological Survey of Canada

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

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

Publication Number: MDC001 Date: 1954

Author: Thomson J.E., Carlson H.D., Ferguson S.A., Pye E.G., Savage W.S.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Copper, nickel, lead and zinc deposits in Ontario (revised to February, 1957)

Publication Number: MDC002 Page: 94  Date: 1957

Author: Thomson J.E., Ferguson S.A., Johnston W.G.Q., Pye E.G., Savage W.S., Thomson R.

Publisher Name: Ontario Dept. of Mines

Location:

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

Publication Number: MDC012 Page: 249  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:

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

Publication Number: OFR5844 Page: 75-76  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: 31-34  Date: 1995

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

Publisher Name: Ontario Geological Survey

Location:

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