Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41O09SE00005

Record: MDI41O09SE00005

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Silver, Molybdenum

Location

Township or Area: Osway

Latitude: 47° 37' 21.85"    Longitude: -82° 14' 20.31"

UTM Zone: 17    Easting: 406906.85   Northing: 5275114.04    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 41O09SE

Point Location Description: West side of a security fence surrounding an open stope, visit with GPS

Location Method: Field Visit with GPS

Access Description: Easy access is possible via the old mine road that connects to the Sultan Industrial road which in turn joins the settlement of Sultan with Highway 144.

Exploration History

1938: Vein Zone discovered by B. Jerome; property evaluated by Erie Canadian Mines, channel sampling. 1939 - Jerome Gold Mines formed - 29 ddh (2401 m), shaft to 158 m, lateral development on 3 levels, underground ddh 63 ddh (1045 m) (T-3721). 1940-additional lateral development on all levels (2848 ft), 407 UG ddh (3677m). 1941 - shaft deepened to 255m, 2 additional levels established, 1427m development work, surface and UG ddh. 1944 underground development resumed, shaft to 347m, new level at 335m, 7 suface ddh (455m), 143 UG ddh (3170m). 1945: underground development (930m), surface ddh 20 ddh (2406m), 171 UG ddh (3091m). 1967 - sold to Brown Forest Products. 1973- E. B. Eddy Forest Products acquires property, 17 ddh (2565m). 1979-optioned to G. F. Ross. 1980-option transferred to Bridgeview Resources - mine dewatering to 60m, ground geophysics (mag, VLF,IP),trenching,stripping, 9 ddh (826m). 1980 - 1984: Osway Explorations Ltd. - Repts, Rcalc (T-5244). 1983 - Osway Exploration optioned property: 24 ddh (3393m). 1987- underground exploration resumed, dewatering to 500';surface exploration was geophysical surveys and ddh. 1989 - option allowed to lapse and mine reflooded. 2003-04: Osprey Gold Corp. - property acquired; diamond drilling (T-5203 / 2.29401, T-5067 / 2.28886, T-5067 / 2.28945, T-5026 / 2.28305). 2008: Augen Gold Corp. - DD - 2 - 1407m, Analys (T-5729 / 2.38044). Augen Gold Corp. - DD - 21 - 10499m, Assays. (T-5769 / 2.39168).

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.: GSC OF 3384 F

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (S Fumerton) - The contact between the porphyry and sediments is sheared and the mineralization is occurs within the shearing at the tip of the lenticular porphyry intrusion. The main shearing cuts across minor irregularities in the sediment porphyry contact. In turn the shear zone is locally off set by late faults. Brecciation is common within the main shear zone and reported fragments of 'Dark Blue Aphanitic Hard Material' may also represent breccia fragments derived from the blue quartz veins. The overall plunge of the alteration and quart veining is at a very shallow angle to the east (10 deg). However the gold mineralization within the quartz veining tends to form chutes or ribs that plunge steeply to west. The shallow easterly plunge is parallel to a number of sills - dykes that splay off the main porhyry intrusion.

Dec 07, 2005 (A Wilson) - The mineralization is located on the south contact of the 'Jerome porphyry' and epiclastic Timiskaming Type sediments. Due to alteration the contact between the intrusive and sedimentary rocks is gradational. The Timiskaming-type sediments consist of arenites and matrix-supported conglomerates. Strong carbonate alteration is present in the sedimentary rocks as a replacement of the matrix and forms a stockwork of thin veins. Replacement silicification is presnet in the mineralized zones. Disseminated and discontinuous trails of coarse-grained aggregates of biotite occur along with specular hematite. Coarse quartz veins with local tourmaline needles or braided bands of fine-grained massive torumaline and rare fuchsite grains.

Lithology

Lithology Comments

Dec 07, 2005 (S Fumerton) - The mineralization is located on the south contact of the 'Jerome Porphyry' and epiclastic 'Timiskaming Type' sediments. Due to alteration the contact between the intrusive and sedimentary rocks is gradational. The 'Temiskaming Type' sediments consist of arenites and matrix supported conglomerates with sparse clasts set in an arenaceous matrix. In the vicinity of the mineralization strong carbonate alteration in the sedimentary rocks occurs as pervasive replacement of the matrix and forms a stockwork of thin veins (<2mm) subparallel to the foliation. Grey - blue aphanitic opalescent intense replacement silicification are cut by the carbonate veins. There is also replacement silicification of the arenite matrix with a pale green colour of variable intensity. Disseminated and discontinuous trails of coarse grained aggregates of biotite occur as do similar grains of specular hematite. There are also some coarse grained quartz veins with local disseminated needles of tourmaline or braided bands of fine grained massive tourmaline and rare fuchsite grains. Besides the main porphyry body north of the mineralization there are a number of smaller porphyry intrusions within the sediments. The porphyry of felsite is characteristically red due to hematite alteration with some feldspar phenocrysts set in a quartz - albite matrix. Carbonate, sericite, biotite, chlorite and epidote alteration occur in the porphyry.

Mineralization

Mineralization Comments

Dec 07, 2005 (S Fumerton) - In the Main Zone mineralization is associated with a composite, zoned, quartz vein within the shear zone. To the north the composite vein is formed of a 1m thick bluish, very fine grained quartz veins. In the centre of the composite vein a coarse, glassy quartz - carbonate zone. To the south the composite vein is composed of discontineous, fine grained, blue quartz veins and stringers. The better gold mineralization is associated with the blue quartz vein material. The blue quartz veins contain pyrite and chalcopyrite sparsely disseminated together with a very fine dusting of sulphide which is molbdenite and graphite. Some visible gold occurs also occurs but gold typically is present as inclusions in the sulphides. Other reported minerals include tetrahedrite, galena, native bismuth, arsenopyrite and sphalerite. The total sulphide content in these veins is about 10%. Coarse grained pyrite, chalcopyrite, tetrahedrite, tourmaline and rare gold grains occur in the coarse glassy quartz veins. Gold values in this type of vein tend to be extremely erratic. Though the gold mineralization occurs in chutes the quartz veining tends to be continious within the shear zone. Also the better gold mineralization tends where the silicified and hematized shear zone cuts through porphyry rather than the sedimentary rocks. Little gold occurs in the carbonate alteration zone. The South Zone, which consists of two closely spaced zones, is also located on a sheared sediment - porphyry contact. Within the shear coarse, glassy quartz veins occur similar to those in the Main Zone as do some of the bluish quartz veins and quartz - carbonate veins. Within the bluish quartz veins fine grained pyrite, chalcopyrite molybdenite, tetrahedrite are common. In addition some native bismuth, native arsenic, telluride, bismuthinite, pyrrhotite and gold occur.

Dec 07, 2005 (A Wilson) - Mineralization is associated with composite, zoned quartz veins within a shear zone. The vein is composed of thick bluish, very fine-grained quartz veins, the centre of the composite zone is composed of coarse, glassy quartz-carbonate. The blue quartz veins contain py and cp sparsely disseminated along with very fine grained mo and sp. The better gold mineralization is associated with the blue quartz vein material. Visible gold is rare, ususally present as inclusions in the sulphides. Other reported minerals include tetrahedrite, galena, native bismuth, arsenopyrite and sphalerite. Total sulphides is about 10%.Coarse-rained py, cp, tetrahedrite, tourmaline and rare gold grains occur in the coarse glassy quartz veins. Gold values in this zone are erratic.

Nov 16, 2011 (P Bousquet) - Drilling campaigns made by Augen Gold Corp. (2008-2010) showed grades ranging from 0.54 gpt Au to 63.90 gpt Au on intervals from 0.5m to 33.53m (T-5769).

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 3       Structure Type: Breccia

Rank: 1       Structure Type: Contact

Rank: 2       Structure Type: Shear

Site Visit Information

Date: Mar 16, 1989

Geologist: J Ireland

Notes: The writer, accompanied by P.J. Sangster, visited the Jerome Mine Property. The party was met by Messrs Mike Rosatelli, Roger Hill, both geologists on site, and Mr Jim Millard, Senior Geologist. The current underground diamond drilling program is attempting to delineate additional ore reserves in the Main Zone. A bazooka drill is currently working from set-ups on the 500 ft level Main Zone, East drift. A series of short holes are being drilled into the structural footwall and hangingwall of the Main Zone to determine the actual width of mineralization. Holes drilled north of the Main Zone, into the structural footwall, have been extended to test the recently discovered North Main Zone, a parallel-trending mineralized structure located approximately 80 ft north of the Main Zone. Drilling to date indicates the North Main Zone has significant lateral continuity at the 500 ft level and could contribute mineable reserves to the deposit. A larger drill is currently set up at the east end of the South 'A' Zone, East drift 500 ft level. A series of holes up to 1,000 ft long are being drilled from various set-ups in the South one drift to test the Main Zone between the 500 and 1100 foot levels. Drill results indicate the presence of additional minable reserves. The current underground diamond drill program will be completed by March 31, 1989. The underground mapping and sampling is expected to continue until April 30, 1989. By that time, he joint venture partners will have made a decision on exercising the option to purchase the mine property from E.B. Eddy Forest Products. An updated ore reserve estimate, based upon the current underground program and the recently completed surface drilling is currently being calculated. [ PRECIS ]

Date: Jul 16, 1993

Geologist: S Fumerton

Notes: A brief visit was made to the old mine site. The mine buildings have been demolished except for the head frame. The shaft has been filled with a poured concrete plug. A secure fence in good order surrounds a stope that comes to surface. North of the shaft there are several distinct rows of crushed rock which may be broken ore that has been stock piled. Some of the campers who are squatting on the property have expressed the hope that the government or E.B. Eddy will evict certain campers.

Date: Jul 12, 2012

Geologist: P Bousquet

Notes: The site has seen some exploration in the past tens years. Piles of coreboxes are visible 200 metres from the gate entrance. Buildings on the site are mostly torn down. The headframe is collapsed, and the pit is well fenced-off. The muck piles are still in plain sight near the pit.

References

File - Resident Geologist files T-2136, T-3721, T-5244

Publication Number: Date:

Author:

Publisher Name:

Location: Timmins RGP office

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

Publication Number: P2369 Scale: 1:15,840    Date: 1980

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:

Book - Jerome Mine; In: Structural Geology of Canadian Ore Deposits, CIM Jubilee Volume

Publication Number: Page: 438  Date: 1948

Author: Brown, W.L.

Publisher Name: Canadian Institute of Mining and Metallurgy

Location: Timmins RGP

Map - Precambrian Geology, Osway Township and Part of Fingal Township

Publication Number: OFM0211 Scale: 1:15,840    Date: 1993

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:

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-48  Date: 1985

Author: Rose, D. G.

Publisher Name: Geological Survey of Canada

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

Map - Township of Osway, District of Sudbury, Ontario

Publication Number: M1949-02 Scale: 1:12,000    Date: 1997

Author: Moorhouse W.W.

Publisher Name: Ontario Dept. of Mines

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

Article - 1981 report of the Timmins Resident Geologist

Publication Number: MP101.005 Page: 74  Date: 1997

Author: Luhta L.E., Sangster P.J.

Publisher Name: Ontario Geological Survey

Location:

Part - Statistical review of the mineral industry of Ontario for 1939

Publication Number: ARV49-01.001 Date: 1997

Author: Tremblay M.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Statistical review of the mineral industry of Ontario for 1940

Publication Number: ARV50-01A Date: 1997

Author: Tremblay M.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Mines of Ontario in 1940

Publication Number: ARV50-01.001 Date: 1997

Author: Tower W.O., Cave A.E., Taylor J.B., Little E.S., Hargrave W.G., Bayne A.S., Cooper D.F., Weir E.B., Douglass D.P.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Statistical review of the mineral industry of Ontario for 1941

Publication Number: ARV51-01.001 Date: 1997

Author: Tremblay M.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Statistical review of the mineral industry of Ontario for 1942

Publication Number: ARV52-01.001 Date: 1997

Author: Tremblay M.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Statistical review of the mineral industry of Ontario for 1943

Publication Number: ARV53-01.001 Date: 1997

Author: Tremblay M.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Mines of Ontario in 1944

Publication Number: ARV54-02.001 Date: 1997

Author: Tower W.O., Smith R.L., Bawden W.E., Cooper D.F., Taylor J.B., Little E.S., Weir E.B., Douglass D.P.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Mines in Ontario in 1945

Publication Number: ARV55-02.001 Date: 1997

Author: Tower W.O., Smith R.L., Bawden W.E., Cooper D.F., Taylor J.B., Walkom L.K., Little E.S., Weir E.B., Douglass D.P., Ward J.L.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Geology of Osway Township

Publication Number: ARV58-05 Page: 18-22  Date: 1997

Author: Moorhouse W.W.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Statistical review of Ontario's mineral industry in 1924

Publication Number: ARV34-01.001 Date: 1997

Author: Rogers W.R., Young A.C.

Publisher Name: Ontario Dept. of Mines

Location:

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

Publication Number: R157 Page: 201-202  Date: 1977

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

Publisher Name: Ontario Division of Mines

Location:

Book - Molybdenum deposits of Canada

Publication Number: GSC EG20 Date: 1963

Author: Vokes, F.M.

Publisher Name:

Location: https://doi.org/10.4095/103994

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: 79-80  Date: 1979

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

Publisher Name: Ontario Geological Survey

Location:

Article - Timmins Resident Geologist's District - 1988

Publication Number: MP142.012 Date: 1997

Author: Luhta L.E., Sangster P.J., Draper D.M., Ireland J.C., Bradshaw M.P., Hamblin C.D.

Publisher Name: Ontario Geological Survey

Location:

Article - Timmins Resident Geologist's District - 1989

Publication Number: MP147.012 Date: 1997

Author: Luhta L.E., Sangster P.J., Ireland J.C., Hamblin C.D., Bradshaw M.P.

Publisher Name: Ontario Geological Survey

Location:

Mono - Molybdenum deposits of Ontario

Publication Number: MDC007 Page: 68  Date: 1968

Author: Johnston F.J.

Publisher Name: Ontario Dept. of Mines

Location:

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

Publication Number: OFR5844 Page: 64-69  Date: 1993

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:

Mono - Lithogeochemistry of Three Gold Settings in the Southern Swayze Belt

Publication Number: OFR5858 Page: 8-10  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: 12-17  Date: 1995

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

Publisher Name: Ontario Geological Survey

Location:

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