Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000002252

Record: MDI000000002252

General

Commodities

Primary Commodities: Nickel

Secondary Commodities: Copper, Palladium, Platinum, Gold, Cobalt

Location

Township or Area: Hagey

Latitude: 48° 36' 4.46"    Longitude: -90° 16' 37.63"

UTM Zone: 15    Easting: 700734   Northing: 5386708    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52B09SW

Point Location Description: Collar of DDH SP06-52 from 2007 NI 43-101

Location Method: Data Compilation

Access Description: Year-round access of the property is by the INCO mine road that starts at Shebandowan and cross the property.

Exploration History

1920s: Drilling occurred on the D-Zone. The history of exploration on the neighbouring Shebandowan INCO mine can be found in MDI52B09SE00003. 2003: North American Palladium optioned the property from Inco Ltd. 2004: North American Palladium flew a helicopter-borne EM and mag survey. 2005-6: North American Palladium carried out a small ground pulse EM survey, a gradient magnetics survey, trenching, and drilled 87 DDH totaling 13,102.3 m. 2008: North American Palladium developed a decline ramp to a level 46.5 m below surface and drove a crosscut to intercept the ore zone.

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Shebandowan

Geological Age: Archean  

Lithology

Lithology Comments

Jan 22, 2019 (Therese Pettigrew) - The project area is underlain by east-west-striking and steeply north-dipping Keewatin metavolcanics and ultramafics lying north of Timiskiming metavolcanics and metasediments. A regional fault called the Crayfish Creek Fault is a dextral fault along the southern contact of the southern ultramafic separating the Keewatin and Timiskiming rocks. The southern Timiskiming rocks consist of intensely foliated and sheared agglomerates and felsic to intermediate metavolcanics now sericite schists. A younger granite called the Shebandowan Lake Stock intruded the Keewatin metavolcanics and lies on the north side of the Property. The ultramafics consist of two principle bodies termed the “Northern” and “Southern” Peridotites, which lie within and along the southern contact of the banded Keewatin metavolcanics. The Northern Peridotie is narrow and moderately altered to serpentine and carbonate, and is approximately 12 m thick with a discontinuous strike length of 1.8 km on the Shebandowan West Project. The Southern Peridotite is located approximately 15 m south of and running parallel to the Northern Peridotite. The Southern Peridotite is more continuous along strike and to depth, and shows widths of 5-75 m (Cullen et al., 2007).

Mineralization

Mineralization Comments

Jan 22, 2019 (Therese Pettigrew) - Drilling on the project area indicates that the mineralization is discontinuous, forming three separate zones called West Zone, Road Zone, and D-Zone from east to west respectively. Disseminated to massive sulphides are found in all three zones within the Shebandowan West Project, with stringer-type mineralization is the most common form of mineralization found on the property, followed by semi-massive and breccia-style, then massive. The Southern Peridotite is also host to a semi-massive to massive chromite horizon and minor pods of massive chromite have been encountered in the Shebandowan West Project in very close proximity to the Crayfish Creek Fault. Nickel-copper mineralization on the Shebandowan West Project is believed to be the western extension of the Shebandowan Mine orebody. Mineralization at the Shebandowan Mine was mainly hosted within the Northern Peridotite, along the contact with the hanging wall Keewatin metavolcanics. In general, the massive sulphides tended to have a higher nickel tenure while the copper-rich sulphides were more associated with PGE mineralization within the stringer-style mineralization and where present, net-textured sulphides. The West Zone is the largest of the three Ni-Cu zones on the Shebandowan West Project and lies immediately west of and includes parts of the area around Shaft 1 of the Shebandowan Mine. It has a known strike length of 285 m and varies between 2 and 20 m in width, averaging 6 meters and has been traced from surface to a depth of 175 m. This mineralization strikes 107 degrees and dips subvertically. Ni-Cu mineralization in the West Zone is comprised of disseminated to massive sulphides located along the northern or hanging wall contact of the Northern Peridotite. Common sulphide minerals within the mineralized horizon are pentlandite, pyrite, chalcopyrite, pyrrhotite, violarite, bornite, and millerite. In the West Zone, DDH SP06-041 assayed up to 4.6713% Ni, 1.1941% Cu, 0.1127% Co, 0.095 gpt Au, 0.516 gpt Pt, and 1.036 gpt Pd. DDH SP06-012 assayed up to 2.2701% Ni, 0.9452% Cu, 0.0620% Co, 0.246 gpt Au, 0.319 gpt Pd, and 2.933 gpt Pd. The Road Zone is located between the West Zone and the D-Zone. Mineralization in the Road Zone differs somewhat from the West and D-Zones as it appears to have bifurcated and is hosted within two separate by subparallel ultramafic units (North and Main units). The North and Main Units are interpreted to represent the lateral equivalent of the Northern Peridotite. Both Ni-Cu zones are composed of disseminated to massive pyrrhotite, chalcopyrite, pentlandite, and pyrite that vary in concentrations and widths. The Road Zone mineralization varies in widths from 0.5 to 15 m but averages 4 m wide from the North Unit and 5 m wide for the Main Unit. Mineralization has been encountered in drilling down to a depth of 181 m where it appears to be closed off and can be traced along strike for 483 m. In the Road Zone, DDH SP06-050 assayed up to 2.2563% Ni, 3.0008% Cu, 0.1443% Co, 0.708 gpt Au, 0.032 gpt Pt, 0.031 gpt Pd. DDH SP06-52 assayed up to 1.8153% Ni, 0.8166% Cu, 0.0493% Co, 0.198 gpt Au, 0.532 gpt Pt, and 2.057 gpt Pd. The D-Zone is an historic surface showing discovered in the late 1920s. Previous historic drilling suggests that the D-Zone represents the westernmost extent of near-surface Ni-Cu-bearing sulphides mineralization. Mineralization in this area is very shallow and discontinuous. Sulphides in this zone vary from disseminated pyrite to massive pyrrhotite with associated pentlandite, chalcopyrite, and pyrite. Breccia-style mineralization is the most common. In the D-Zone, SP06-77 assayed up to 3.9816% Ni, 1.0495% Cu, 0.1052% Co, 0.143 gpt Au, 0.737 gpt Pt, and 3.547 gpt Pd. SP06-074 assayed up to 6.5634% Ni, 1.2548% Cu, 0.1258% Co, 0.23 gpt Au, 1.222 gpt Pt, and 2.524 gpt Pd (Cullen et al., 2007).

Mineral Record Details

Mineral Zones - Size and Shape

References

Publication - Technical Report on the Shebandowan West Property

Publication Number: 2007 NI 43-101 Date: 2007

Author: Cullen, D., Brown, F.H., Sedor, L.

Publisher Name: North American Palladium

Location: SEDAR

Mono - Report of Activities 2008, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District

Publication Number: OFR6234 Page: 12  Date: 2009

Author: Scott J.F., Campbell D.A., Hinz P., Komar C.L., Brunelle M.R.

Publisher Name: Ontario Geological Survey

Location:

Mono - Report of Activities 2007, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District

Publication Number: OFR6218 Page: 11  Date: 2008

Author: Scott J.F., Campbell D.A., Hinz P., Komar C.L.

Publisher Name: Ontario Geological Survey

Location:

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