Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A15SW00039

Record: MDI42A15SW00039

General

Commodities

Primary Commodities: Nickel, Asbestos

Secondary Commodities: Gold, Cobalt

Location

Township or Area: McCart

Latitude: 48° 46' 33"    Longitude: -80° 52' 41.31"

UTM Zone: 17    Easting: 508952.997   Northing: 5402544.003    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42A15SW

Point Location Description: Collar of DH MC08-3, UTM coordinates in log, AF T-5916

Location Method: Data Compilation

Access Description: The property is easily accessed by motor vehicle west from the village of Iroquois Falls via the western extension of Highway 578, locally known as Berlinghoff Road. The southeast corner of the property is approximately 4.7 km west of Highway 11. Berlinghoff Road cuts through the southern boundary of the property. Trails trend north off Berlinghoff Road and allow all terrain vehicle access to the [occurrence site] from both the west and east sides of the property. (T-5916)

Exploration History

1916: D. O'Connor - prospecting, trenching, sampling in Lots 6 and 7, Conc. 5 (AR Vol 26). 1950-51: Arrow Timber Company and Calstock Exploration and Development Co. - ground geophysics, mapping, trenching, drilling (T-380). 1950: Dominion Gulf Company - mapping (T-422). 1957: Nortoba Nickel Explorations Limited - ground geophysics (T-623) 1985: Angela Developments - airborne geophysics (T-2744). 1961: Union Mining Corporation - drilling (T-0686) 1964, 1966: O'Brien Gold Mines (J. Chevalier) - ground geophysics, drilling, W ½, S ½, Lot 7, Conc. 5 (T-1120, see MDI42A15SW00045) 1989: B. Raine - mapping (T-3383) 1989-1990: Timmins Nickel Inc. - data compilation report (T-4077) 1990: J. W. Newsome and Associates - ground geophysics to NW of property (T-3375). 1990: H. G. Bent and Associates - ground geophysics, N ½ Lot 7, Conc 5 (T-3412). 1991-1992: B. Raine - mapping, geochemical and geophysical surveys, N ½, Lot 6, Conc. 5 (T-3383) 1990-1993: K. M. Cunnison - mapping, ground geophysics, sampling, lithogeochemistry, electron microprobe analysis (T-3438) 1997: D. R. Pyke - ground geophysics (T-3901) 2000: D. R. Pyke - sampling, S ½, Lot 6, Conc. 5 (T-4438) 2008: Bridgeport Ventures Inc. - drilling (780m in 5 holes), downhole geophysics (T-5916)

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Tectonic Assemblage: Stoughton-Roquemaure

Geological Age: Neoarchean   Geochronological Age: 2706 MA   Geochron. Age Ref.: MP 169 P. 75

Lithology

Lithology Comments

Nov 10, 2011 (D Draper) - The property is underlain by a sequence of pillowed to massive basaltic komatiites that trend northeasterly across the south half of lots 6 & 7, Conc 5 and easterly across the north half lots 6 & 7, Conc 5. The northern basaltic komatiite sequence has north facing pillow tops and the stratigraphy has a shallow dip of 20 to 30 degrees to the north. In the south basaltic komatiite sequence, a series of anticlines and synclines trending east-west are inferred from the mapping of pillow top directions. Peridotites occur as an envelope surrounding the metavolcanics. Mapping of the northern contact of the basaltic komatiites and the peridotite in the south half of lot 7 Conc 5 indicates the peridotites have undergone quite intense carbonatization and albitization. A zone of intensely sheared, graphitic metasediment occurs immediately south of the altered peridotite contact. (Precis from Montgomery report, T-5916, p.3-1)

Nov 10, 2011 (A Wilson) - The ultramafic rocks occur as an envelope surrounding the volcanics. The volcanics consist of a massive base with an overlyinging pillowed portion, commonly capped by pillow breccia and/or hyaloclastite flow top. Mineralization is associated with weakly sheared zones in the peridotite north of the intrusive-volcanic contact.

Mineralization

Mineralization Comments

Nov 10, 2011 (D Draper) - In 1916, grab samples from the Don O'Connor property were collected from along a contact zone between the ultramafic intrusive and metavolcanics. This zone extends from the NE ¼ of the south half of Lot 7 into the NW ¼ of the south half of Lot 6, Conc. 5. Mineralization along the contact consists of disseminated pyrrhotite and stringers of massive sulphides, samples of which were reported to have contained up to 3 percent nickel. Also observed in the vicinity of the contact zone was a unit of graphitic tuff (later identified as metasediments) mineralized with concretions or nodules of pyrite up to 2 inches in diameter (ARV26; T-3438). Work by Arrow Timber in the north half of Lot 7 north of the contact exposed several occurrences of chrysotile fibre within a large low-lying outcrop of columnar serpentinized peridotite. A 250-foot diameter area of this outcrop was estimated to carry 2-3% fibre, of which about 10% was 1/4 inches and over 50% was 1/8 inches in length. Fibre up to ½ inch was also noted in several of the 7 holes drilled on the property, but did not exceed 1% in volume within the core. (T-380) Mapping of the contact zone by Pyke and Cunnison determined that the sulphides consist predominantly of [Q] pyrrhotite with minor chalcopyrite and pentlandite and occur as fine disseminations forming 2-5 percent of the rock or more commonly as an interlocking net textured sulphide forming up to 15-25 percent of the rock over widths up to 0.5m. Net textured sulphides, although most common along the contact zone, are also present as isolated lenses up to 100m north of the contact.[unQ] Seven grab samples collected by Cunnison in 1990 from old trenches along the north side of the contact zone within the ultramafic intrusive returned from 1430 ppm to 4130 ppm (sample McC-20) Ni. Two samples taken from a trench 175m east of sample McC-20 returned 3200 ppm and 3260 ppm Ni. (T-3438) Drilling by Bridgeport was generally situated in the NE ¼ of the south half of Lot 7, Conc. 5. Centrally located hole MC08-3 was collared approx. 235m north of the contact zone sampled by O'Connor; holes MC08-4 and MC08-5 were collared north of MC08-3 in the vicinity of the peridotite outcrop examined by Arrow Timber. All holes were collared in peridotite and intersected komatiitic basalt; all but MC08-5 also cut graphitic argillite and/or greywacke. All were drilled bearing az140 deg and dipping 50 deg. Significant assay results from the Bridgeport drilling include: MC08-2: 1593 ppm Ni over 1m @ 11m downhole MC08-3: 1822 ppm Ni over 1m @ 35m, 2070 ppm Ni over 1m @ 64.4m; 180 ppm Co over 0.5m MC08-4: 268 ppb Au over 1m in graphitic argillite; 1651ppm Ni over 0.5m in peridotite MC08-5: 3540 ppm Ni over 1 m @61m, 3120 ppm Ni over 1m @107m and 153 ppm Co over 0.8m (T-5916)

Mineral Record Details

References

File - Resident Geologist files T-0380, T-0422, T-4077

Publication Number: Date:

Author:

Publisher Name:

Location: Timmins RGP office

Journal - The Role of Sulphurization in the Genesis of Iron-Nickel Sulphide Deposits of the Porcupine District; Transactions of the Canadian Institute of Mining and Metallurgy, vol. 69

Publication Number: Page: 147-155  Date: 1966

Author: Naldrett, A.J.

Publisher Name: CIMM

Location: Timmins RRGO Tech Paper files

Map - McCart Township

Publication Number: P0016 Scale: 1:15,840    Date: 1997

Author: Satterly J.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Report of the Royal Ontario Nickel Commission, with appendix

Publication Number: OP01 Date: 1997

Author: Holloway G.T., Miller W.G., Young M., Gibson T.W.

Publisher Name: Ontario Geological Survey

Location:

Map - Geological Compilation of the Lake Abitibi Area, Abitibi Greenstone Belt

Publication Number: P3398 Scale: 1:100,000    Date: 1999

Author: Ayer J.A., Berger B.R., Trowell N.F.

Publisher Name: Ontario Geological Survey

Location:

Part - Alexo nickel mine, Timiskaming District

Publication Number: ARV26.010 Page: 270-272  Date: 1998

Author: Baker M.B.

Publisher Name: Ontario Bureau of Mines

Location:

Map - Geological Compilation: Brower, Duff, Fournier, Hanna, Lamarche, Little, Mann, McCart, Newmarket, Reaume, St. John and Tully Townships

Publication Number: P3391 Scale: 1:50,000    Date: 1999

Author: Barrie C.T.

Publisher Name: Ontario Geological Survey

Location:

Part - Abitibi-Night Hawk gold area, District of Timiskaming

Publication Number: ARV28-02.001 Page: 64  Date: 1998

Author: Knight C.W., Burrows A.G., Hopkins P.E., Parsons A.L.

Publisher Name: Ontario Bureau of Mines

Location:

Book - GSC 1951, MD 2812, 51-07-23

Publication Number: N/A Date: 1951

Author:

Publisher Name: GSC

Location:

Mono - Asbestos in Ontario

Publication Number: IMR001 Page: 14  Date: 1997

Author: Hewitt D.F., Satterly J.

Publisher Name: Ontario Dept. of Mines

Location:

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

Publication Number: MDC012 Page: 131  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Asbestos in Ontario

Publication Number: IMR036 Page: 54-55  Date: 1998

Author: Vos M.A.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

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: 42A-364  Date: 1985

Author: Rose, D. G.

Publisher Name: Geological Survey of Canada

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

Article - The Kidd-Munro extension project: results of U-Pb geochronology for Year 1

Publication Number: MP169.012 Page: 74  Date: 1998

Author: Barrie C.T., Corfu F.

Publisher Name: Ontario Geological Survey

Location:

Book - Geology of the Mann Intrusive Complex, etc. in Economic Geology Monograph 10, p. 613-625, 1999

Publication Number: EconGeol Mono10 Date:

Author: Good, D.J. and Crocket, J.H.

Publisher Name: The Economic Geology Publishing Company

Location: Timmis RRGO

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