Mineral Deposit Inventory for Ontario

Ministry of Energy, Northern Development and Mines

Deposit: MDI000000000365

General

Commodities

Primary Commodities: copper, gold

Secondary Commodities: molybdenum, silver

Location

Township or Area: Powell Lake Area

Latitude: 48° 29' 14.07"    Longitude: -90° 47' 12.5"

UTM Zone: 15    Easting: 663529   Northing: 5372823    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52B07NW

Point Location Description: DDH HAM-11-69 from AFRI 20000013643

Location Method: data compilation

Access Description: Access to these claims can be achieved by turning south down Swamp road, which is approximately 130 km west of Thunder Bay on Highway 11. Turn west on Hermia Lake Road then turn south on Tilly Road souththen follow Nelson Road for 9.8 km.

Exploration and Mining History

1956: R. Smith and R. Sanderson discovered the showing. 1957: an EM survey and trenching were conducted, then 2 DDH totalling 265.2 m were drilled. 1985: Kennco Explorations Canada Ltd. carried out ground magnetometer and VLF-EM surveys, geological mapping, and sampling. 1987: Grande Portage Resources Ltd. carried out trenching, and sampling. 1990: Noranda Exploration Company Ltd. carried out HLEM, magnetometer, IP and resistivity surveys, prospecting and humus sampling. 1991: Noranda drilled 3 DDH totalling 879 m. 2004: East West Resources carried out a VTEM survey, geological mapping, and prospecting. 2005-6: East West Resources carried out an EM survey and drilled 24 DDH totalling 5504.2 m. 2008-10: Xstrata Copper drilled 9 DDH totalling 3042.5 m. 2011: Xstrata drilled 17 DDH totalling 6179 m.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Belt: Shebandowan

Geological Age: Archean    Geochronological Age: 2715-2720    

Tectonic Assemblage: Central Felsic To Intermediate Metavolcanic Belt

Mineral Deposit Lithology

Lithology Comments

12/06/2016 (A Tims) - The breccia unit is a highly siliceous intermediate metavolcanic with intermittent sections of brecciated volcanics, foliated siliceous volcanics and mafic volcanics.

Mineralization

Mineralization Comments

12/06/2016 (A Tims) - Alteration in this unit consists of pervasive chloritic and epidote alteration throughout unit with trace qtz+calcite vugs. Occasional large blebs of magnetite are present. Chlorite veins occur as infilling around breccia clasts and as hairline veinlets cutting the core at varying angles. Pyrite occurs within both the qtz and chlorite veinlets, and as fine, subhedral grains. Magnetite averages 10-20% to WR and qtz+calcite vugs are at -10% to WR. Epidote alteration is patchy and occurs at -10-20% to WR. The breccia clasts are pink (sodic?) and cherty fragments averaging 1-3cm size, these clasts do not support any mineralization. Silica veinlets cut the core at varying angles. Gabbroic fragments are abundant throughout and are epidotized. Mineralization consists of disseminated Py+Cpy, and is patchy around vugs, sometimes occurring with epidote. Trace blebby molybdenite is present.

09/25/2018 (T Pettigrew) - Assay results from original trenches at the Ray Smith Occurrence returned values of 0.23% Cu over 6.0 m. Noranda’s 1991 DDH GP-91-02 assayed 0.33% Cu (AFRI 52B07NW0005). The Noranda trenches exposed a semi-banded chert-magnetite iron formation in chloritic intermediate metavolcanics. Chalcopyrite occurs as narrow stringers with associated pyrite. A 0.5 m chip sample across the iron formation returned an assay of 735 ppb Au. Copper mineralization is generally associated with altered zones of rhyolite and andesite. Drill hole A6 from 1957 was drilled over the original copper showing. Five narrow zones from 12 to 36 cm wide occurred over 15.24 m yielding 0.5-3% Cu. Another 6.1 m section contained 0.23% Cu. In 1984, samples from the trenches yielded 620 and 10 ppb Au (AFRI 52B07NW0042). Mineralization in the iron formations consists of 1-10% pyrite and up to 40% magnetite in some of the units (AFRI 52B07NW2010). DDH DC-11-21 returned assays of 3.0 gpt Au over 1.5 m and 2.24 gpt Au over 0.4 m. DDH HAM-11-67 had assays between 0.5-1% Cu. DDH HAM-11-69 assayed 0.67% Cu at 101 m and 0.74% Cu at 141.5 m. DDH HAM-11-70 assayed 0.31% Cu, 0.21 gpt Au, and 2.18 gpt Ag over 21 m. DDH HAM-11-75 assayed 0.35% Vu, 0.015% Mo, 2.15 gpt Ag, and 087 gpt Au over 156.1 m (AFRI 20000013643). DDH NG-08-01 assayed 2649 ppm Cu over 14.1 m from 6.0-20.1 m, including up to 6513 ppm Cu over 1.4 m from 7.1-8.5 m, and 1326 ppm Mo over 1.5 m from 93.2-94.7 m. DDH NG-08-02 asasyed 4187 ppm Cu over 1.5 m from 61.3-62.8 m. DDH NG-10-07 had low grade mineralization over 144 m from 183-327 m, including assays up to 3730 ppm Cu over 3 m from 234-237 m, 5410 ppm Cu over 3 m from 264-267 m, 2320 ppm Cu over 15 m from 282-297 m, and 2248 ppm Cu over 319.5-327 m, and 1300 ppm Mo over 1.5 m at 222 m (AFRI 20000007591).

08/30/2007 (Q Unknown) - diss cpy, py, in volc bx tr Mo

Mineral Deposit Details

References

Publication - Geology of the Moss Lake area, District of Thunder Bay

Publication Number: R085    Date: 1970

Author: Harris,H.E.

Publisher Name: ODM

Publication - Copper, Nickel, Lead and Zinc Deposits of Ontario

Publication Number: MDC012    Date: 1969

Author: Shklanka, R.

Publisher Name: ODM

Publication - Greenwater Lake Area, West-Central Shebandowan Greenstone Belt

Publication Number: R296     Date: 1997

Author: Osmani, I.A.

Publisher Name: OGS

Map - Precambrian Geology of the Wye and Hamlin Lakes Area

Publication Number: P2511    Scale: 1:20 000    Date: 2009

Author: Hart, T.R., Metsaranta, D.A

Publisher Name: OGS

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Ministry Contact Information

For detailed information regarding this mineral deposit please contact the Thunder Bay South Resident Geologist District Office