Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52F02NE00007

Record: MDI52F02NE00007

General

Commodities

Primary Commodities: Copper, Nickel, Platinum, Platinum Metals

Secondary Commodities: Gold, Silver

Location

Township or Area: Eagle Rock Lake Area

Latitude: 49° 12' 31.08"    Longitude: -92° 39' 22.59"

UTM Zone: 15    Easting: 525035.62   Northing: 5450705.79    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52F02NE

Point Location Description: Precise

Location Method: Conversion from MDI

Access Description: Access to the property is from Highway 502, then east along the all-season Trout Lake logging road to Km 19.5, then turn south for 500 m onto the track to the drill camp site and access to the Campbell Zone grid.

Exploration History

1968: Kennco conducted trenching, geological mapping and sampling of four zones of Cu mineralization. 1969-70: Noranda conducted trenching, geophysical surveys. 317 m of DD in 3 holes. 1973-74: Noranda drilled 747 m of DD in 7 holes. 1987-88: BP-Selco Canada resampled Noranda drill core. 1988: Southern Era conducted airborne Mag and EM surveys. 1112 m of DD in 9 holes. 1999: Champion Bear Resources Ltd. acquired the property. 1999-2001: Champion Bear drilled 46 DDH totalling 5046 m. 2000: Champion Bear staked more claims and conducted detailed mapping and prospecting. 2001: Champion Bear undertook preliminary metallurgical investigations on two intervals of drill core. 2002: Champion Bear conducted an exploration program. 2004: Champion Bear collected 7 grab samples. 2005: Champion Bear reclogged 11 drillholes and conducted airborne mag and radiometric surveys. 2007: Champion Bear reclogged an additional 31 holes, conducted ground IP and mag surveys, and drilled 3 DDH totalling 918 m. 2008: Champion Bear drilled 14 DDH totalling 3220 m. 2009: Champion Bear conducted prospecting and drilled 9 DDH totalling 2501 m. 2011: Canadian Platinum entered into an option agreement with Champion Bear to earn 50% of the property, and conducted prospecting and geological mapping. NI 43-101 technical report released in November. Canadian Platinum dropped the option.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Geological Age: Archean  

Geology Comments

Mar 10, 2015 (Therese Pettigrew) - The property overlies the Entwine Lake Intrusion within the central Wabigoon subprovince of the Superior Province of the Canadian Shield. The intrusion lies proximal to the boundary between the western and central regions of the Wabigoon. The Entwine Lake Intrusion is a multi-phase intrusion, which has been categorized into four major lithological components: a monzodiorite to monzonite unit, a diorite-gabbro unit, a quartz monzonite unit and a coarse pyroxenite unit.

Lithology

Lithology Comments

Mar 10, 2015 (Therese Pettigrew) - At the Campbell Zone, detailed mapping identified leucogabbro-gabbro (Stone�s diorite-monzodiorite suite) as the most abundant unit on the grid. The gabbros are divided based on pyroxene content into four sub-units: leucogabbro-diorite (5-15% pyroxene), leucogabbro-diorite (15-30 pyroxene), gabbro (30-50% pyroxene) and pyroxenite (>50% pyroxene). Contacts are generally gradation, but locally can develop subtle banding. Campbell Zone sulphide mineralization is associated with the two leucogabbro-diorite sub-units. The more melanocratic phases become more abundant SE of the Campbell Zone. A quartz monzonite-monzodiorite unit is similar to the leucogabbro-diorite subunits but is medium grained, not very coarse grained, has a higher proportion of biotite, always intrudes the leucogabbro-grabbro unit, and is feldspar-phyric, particularly in marginal phases and narrow dykes. Numerous narrow dykes intrude the leucogabbro-gabbro and monzonite-monzodiorite units. The composition of these dykes varies from dioritic to pyroxenites to granite-related phases. Most are late stage portions of the Entwine Lake Intrusion and generally follow NE to N-trending fractures.

Mineralization

Mineralization Comments

Mar 10, 2015 (C RAVNAAS) - Test results (metallurgical) have shown that a sulphide concentrate may be produced exceeding 20% copper, 2.5% nickel and almost one ounce of Pt+Pd+Au (11.5 gpt Pd, 9.0 gpt Pt, and 6 gpt Au) per tonne quoted from Champion Bear website.

Mar 10, 2015 (Therese Pettigrew) - Mineralization has been identified at several zones on the property, with the primary zone identified as the Campbell Zone. The Campbell Zone is characterized by a �reef-like� horizon exposed at surface for approx. 1.2 km. The Campbell Zone is hosted in altered diorites and gabbros and appears to be subparallel to magmatic stratigraphy. The Campbell Zone strikes NE, dips at 60 degrees to the SW, varies in true thickness from 3 to 30 m (averages 8 to 10 m thick) and is known by drilling to extend to a vertical depth of at least 200 m. Sulphide mineralization that define the Campbell Zone contain locally up to 10% (typically less than 5%) chalcopyrite and pyrrhotite in broad, relatively uniform zones of fine disseminations. Palladium-bismuth tellurides and electrum have also been noted. The mineralization is characterized by a greenschist facies alteration assemblage of epidote, chlorite, sericite and carbonate (McCracken and Karrei, 2011). Noranda 1970 drill program best assays returned: 0.76% Cu, 0.13% Ni over 3.0 m; 0.77% Cu and 0.10% Ni over 3.0 m. Noranda�s 1969-74 drill program best intersections assayed: 0.77% Cu over 3.0 m; 0.62% Cu and 0.16% Ni over 3.0 m. BP-Selco Canada�s 1987-8 drill program best intersections assayed: 0.76% Cu, 714 ppb Pt, 1139 ppb Pd over 4.3m; 0.73% Cu, 372 ppb Pt, 669 ppb Pd over 7.9m; 0.68% Cu, 456 ppb Pt, 782 ppb Pd over 15.0m. 2009 drill results include: ER09-14: 1.8 g/t Au+Pt+Pd and 0.56% Cu+Ni over 31.0 m including 1.28 g/t Au+Pt+Pd and 0.70% Cu+Ni over 15.0 m; ER09-15: 1.14 g/t Au+Pt+Pd and 0.60% Cu+Ni over 10.0 m; ER09-19: 1.70 g/t Au+Pt+Pd and 0.87% Cu+Ni over 13.0 m, including 2.19 g/t Au+Pt+Pd and 0.92% Cu+Ni over 5.0 m; ER09-21: 1.30 g/t Au+Pt+Pd and 0.55% Cu+Ni over 34.0 m including 1.77 g/t Au+Pt+Pd and 0.69% Cu+Ni over 12.0 m; and ER09-22: 1.32 g/t Au+Pt+Pd and 0.57% Cu+Ni over 8.0 m. In 2001, Champion Bear commissioned Process Research Associates Ltd. to complete a preliminary metallurgical study on two composited samples. The head grade analyses for these samples are: CR-8A: 0.85% Cu, 0.23 g/t Pd, 0.24 g/t Pt, 0.34 g/t Au, 13.0 g/t Ag Comp 8C: 0.57% Cu, 0.47 g/t Pd, 0.2 g/t Pt, 0.21 g/t Au, 6.8 g/t Ag Recoveries ranged between 90 to 95% for Cu, Pt and Pd. Ag and Au recoveries were reported to be between 85 to 90%. The resulting sulphide concentrate grade varied between 25-29% Cu, 5-14 g/t Pt, 8-15 g/t Pd, 6-9g g/t Au and 200-280 g/t Ag (McCracken and Karrei, 2011).

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

References

Publication - Technical Report on the Eagle Rock Project, Northwestern Ontario

Publication Number: 2011 43-101 Scale:     Date: 2011

Author: McCracken, T., Karrei, L.

Publisher Name: Tetra Tech Wardrop for Champion Bear and Canadian Platinum

Mono - Geology, Mineral Chemistry and Thermobarometry of the Entwine Stock, Northwest Ontario: Base Metal, Platinum Group Element and Gold Mineralization

Publication Number: OFR6021 Scale:     Date: 2000

Author: Stone D.

Publisher Name: Ontario Geological Survey

Compend - Summary of Field Work and Other Activities, 1999

Publication Number: OFR6000 Scale:     Date: 1999

Author: Ayer J.A., Baker C.L., Kelly R.I., Stott G.M., Thurston P.C.

Publisher Name: Ontario Geological Survey

Map - Precambrian Geology, Entwine Lake Area

Publication Number: P3400 Scale: 1:50,000    Date: 1999

Author: Stone D., Hallé J.

Publisher Name: Ontario Geological Survey

Map - Precambrian Geology, Entwine Lake Intrusion

Publication Number: P3516 Scale: 1:20,000    Date: 2002

Author: Arnold J.

Publisher Name: Ontario Geological Survey

Map - Geological series, Operation Ignace-Armstrong, Mine Centre-Entwine Lake sheet, districts of Kenora and Rainy River

Publication Number: P0965 Scale: 1:126,720    Date: 1974

Author: Sage R.P., Breaks F.W., Stott G.M., McWilliams G.H., Ali A.

Publisher Name: Ontario Division of Mines

Map - Entwine Lake area, District of Kenora

Publication Number: P0292 Scale: 1:31,680    Date: 1997

Author: Davies J.C.

Publisher Name: Ontario Dept. of Mines

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