Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000000859

Record: MDI000000000859

General

Commodities

Primary Commodities: Copper, Zinc, Lead

Secondary Commodities: Silver

Location

Township or Area: BMA 523 871

Latitude: 52° 15' 15.69"    Longitude: -87° 2' 17.12"

UTM Zone: 16    Easting: 497400   Northing: 5789330    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 43D06SE

Point Location Description: Point located with GPS from 2008 drill program.

Location Method: Based on Assessment

Access Description: The property is 90 km northwest of Marten Falls First Nation at Ogoki Post. Fly in access.

Exploration History

Exploration History of Region 1962 Geological Survey of Canada first did a geological map of Lansdowne House area. 1963 Duffell, S., MacLaren, A.S. and Holman, R.H.C. of the Geological Survey ofCanada wrote a report on bedrock geology, geophysical and geochemicalinvestigations of the Red Lake-Lansdowne House Area. 1970 Thurston, P.C. and Carter, M.W. of the Ontario Department of Mines did thegeological mapping project Operation Fort Hope. 1970-1974 Canadian Nickel Company (Canico, now INCO) carried out geophysics and 47 diamond drill holes in the Lavoie-Springer Lakes 1979 Thurston, P.C., Sage, R.P., and Siragusa, G.M. of the Ontario Geological Survey wrote a report along with maps on the Geology of the Winisk Lake Area. 1984-1985 Bryndon Ventures Inc. performed a VLF-EM survey in Benjamin Lake Township to the north of the property. 1985-1986 Blue Falcon Mines Ltd. performed an airborne magnetic and VLF-EM survey over a large area near Lansdowne House including Benjamin Lake Township. 2001-2003 Superior Diamonds Inc. did overburden sampling for diamond indicator minerals over a 16ha block that included Benjamin Lake 2003 The Ontario Geological Survey performed an airborne magnetics survey of the Attawapiskat area. 2002-2007 Spider Resources Inc.-KWG Resources Inc.-De Beers Canada Inc. joint venture in diamond drill exploration for kimberlite bodies discovered the McFauld's #1 VMS occurrence. 2006 FNX Mining Company performed a helicopter-borne AeroTEM II Electromagnetic and Magnetic Survey on the Fishtrap Lake Property. 2006-2007 Northern Shield Resources Inc. did geological assessment and diamond drilling of the Highbank Lake Property. 2007 Noront Resources Ltd. discovered high grade Ni, Cu, Pt, Pd and indications of Rh in drill core over significant widths on the Eagle One deposit. 2008 East West Resource Corporation and Temex Resources Corporation performed a helicopter-borne VTEM geophysical survey over the Fishhook and North Trap Properties.

Assessment Work on File

Geology

Province: Superior

Subprovince: Sachigo

Terrane: North Caribou

Geological Age: Archean  

Geology Comments

Aug 13, 2010 (N Bennett) - GP2-08-04 (497400E, 5789330N, UTM NAD 83, Zone 16, Claim 4216162) is a -50° dipping hole with azimuth at 135° that was drilled to a depth of 104m. The hole went through 18m of overburden and first intersected grey-green garnet and chlorite-altered intermediate volcanics up to 46.36m. This is followed by a fine pyrrhotite mineralization at 46m and grey-black intermediate volcanics up to 59m. An ultramafic pyroxenite unit occurs from 59 to 62.10m. Then there are more volcanics up to 63.50m and another ultramafic unit up to 64.50m. Intermediate volcanics from 64.50 to 68.40m contain chalcopyrite at 65.4 and 66.5m and a zone of pyrrhotite from 67.7 to 68.4m. Intermediate volcanics then occurs up to 72.50m. A possible sericitized exhalite unit occurs from 72.50 to 74.20m. From 74.20 to the end of the hole at 104m, there are intermediate volcanic units with X-cutting pegmatites.

Lithology

Lithology Comments

Aug 13, 2010 (N Bennett) - For whole rock analysis, the volcanic unit at 22m is a basalt while the unit at 60m is a confirmed ultramafic with 29.98 wt% SiO2 and 23.19 wt% MgO (Fig. 3). For tectonic discrimination, the basalt plots in the WPB field of the Pearce and Cann diagram and in the Mg tholeiite field of a Jensen AFM diagram. The basalt is a plume basalt or OIB (Ocean Island Basalt) with a Zr/Y ratio of 28.70 and a Ti/V ratio of 48.29. On an Alteration Index vs. Na2O wt% diagram, the rocks plot below the line in the hydrothermally altered rock field and specifically in the Na-depleted chlorite-sericite field. On a CCP Index vs. Alteration Index diagram, intensity of alteration shows the rocks plot in the ore centre chlorite + pyrite field. Therefore, the hole is vectored on a primitive Cu-Zn VMS prospect.

Mineralization

Mineralization Comments

Aug 13, 2010 (N Bennett) - The hole went through 18m of overburden and first intersected grey-green garnet and chlorite-altered intermediate volcanics up to 46.36m. This is followed by a fine pyrrhotite mineralization at 46m and grey-black intermediate volcanics up to 59m. An ultramafic pyroxenite unit occurs from 59 to 62.10m. Then there are more volcanics up to 63.50m and another ultramafic unit up to 64.50m. Intermediate volcanics from 64.50 to 68.40m contain chalcopyrite at 65.4 and 66.5m and a zone of pyrrhotite from 67.7 to 68.4m. Intermediate volcanics then occurs up to 72.50m. A possible sericitized exhalite unit occurs from 72.50 to 74.20m. From 74.20 to the end of the hole at 104m, there are intermediate volcanic units with X-cutting pegmatites. A total of 13 samples were sent in for geochemical analysis, 2 samples were analysed for whole rock (FUS-ICP) and 11 samples were analysed for 15 elements (INAA and AR-ICP). Zones and intercepts include a zone of average 0.184% Cu, 0.262% Zn and 3.74g/t Ag over 4.6m from 63.4 to 68m which includes an intercept of 0.301% Cu, 1.87% Zn and 2.9 g/t Ag over 34cm from 65.24 to 65.58m. For whole rock analysis, the volcanic unit at 22m is a basalt while the unit at 60m is a confirmed ultramafic with 29.98 wt% SiO2 and 23.19 wt% MgO. For tectonic discrimination, the basalt plots in the WPB field of the Pearce and Cann diagram and in the Mg tholeiite field of a Jensen AFM diagram. The basalt is a plume basalt or OIB (Ocean Island Basalt) with a Zr/Y ratio of 28.70 and a Ti/V ratio of 48.29. On an Alteration Index vs. Na2O wt% diagram, the rocks plot below the line in the hydrothermally altered rock field and specifically in the a-depleted chlorite-sericite field (Fig. 8). On a CCP Index vs. Alteration Index diagram, intensity of alteration shows the rocks plot in the ore centre chlorite + pyrite field. Therefore, the hole is vectored on a primitive Cu-Zn VMS prospect.

Mineral Record Details

Report an Error

We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.

Terms of Use

Please review our Terms of Use agreement for this data product.

Ministry Contact Information

For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office