Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52O04NE00023

Record: MDI52O04NE00023

General

Commodities

Primary Commodities: Gold, Silver

Secondary Commodities: Copper, Zinc, Lead

Location

Township or Area: Wesleyan Lake Area

Latitude: 51° 10' 57.7"    Longitude: -91° 33' 4.82"

UTM Zone: 15    Easting: 601250   Northing: 5671138.997    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52O04NE

Point Location Description: DH symbol NW of S symbol on east-central portion of map 2481

Location Method: Conversion from MDI

Access Description: The Path Vein occurrence is located about 97 km west-southwest of Pickle Lake and 3.5 km northeast of the First Nation Community of Slate Falls. Access to the Path Vein occurrence is by appropriately equipped aircraft to North Bamaji Lake. About 2 km east of the First Nation Community of Slate Falls is a north-trending bay of North Bamaji Lake. A foot trail leads from the north end of this bay north and east to the occurrence area. A winter road along the Ear Falls to Pickle lake power corridor passes about 2 km south of the occurrence.

Exploration History

1965: Claims were staked on this occurrence and transferred to Dome Exploration (Canada) Ltd. 1966: Dome Exploration Canada Ltd. did considerable trenching on the claims before transferring the claims back to a Mr. Sanderson of Balmertown. 1966: Cochenour Willans Gold Mines Ltd. acquired an option on the claims and did a diamond-drilling program of 9 holes totalling 447 m. 1980: St. Joseph Explorations Ltd. staked claims covering the occurrence and did geological mapping and geophysical surveys. 1981: St. Joseph Explorations Ltd. did more geological mapping and geophysical surveys. They also did orientation soil geochemistry surveys, trenching and staked additional claims. 1984: Sulpetro Minerals Ltd. (name changed from St. Joseph Explorations Ltd.) did 14 diamond-drill holes totalling 2235 m on their claims. The post-1984 exploration history of the area is summarized by Nelson (2002).

Assessment Work on File

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Meen-Dempster

Geological Age: Archean  

Geology Comments

Jan 16, 2007 (Mark Puumala) - The geology in the vicinity of this occurrence is described in MDI52O04NE00019.

Lithology

Mineralization

Mineralization Comments

Jan 16, 2007 (Mark Puumala) - The Path Vein occurrence is contained in an east-trending, south-dipping shear zone through massive, well-bedded siltstone. The shear zone has been traced by trenching for about 20 m. The Path Vein occurrence is a lensoid, possibly boudinaged, milky quartz vein. The vein varies in width between 10 cm and 30 cm. The sulphide minerals contained in the vein are pyrite, sphalerite, chalcopyrite, tetrahedrite, pyrrhotite and galena. The sulphides occur as disseminations, stringers and local masses within the vein and along the contacts of the vein with the sheared mafic metavolcanics. Total sulphide content of the vein is up to 5% though local sulphide concentrations suggest a higher content. Ackert (1997) has re-interpreted the rocks previously mapped in this area as metasediments as being deformed pillowed mafic metavolcanic flows. The deformed pillow structures are reported to give the rock a banded appearance. Nelson (2002) also notes that the mineralized structure cross-cuts mafic metavolcanics and intrusive felsic porphyry. The 2 best assays from the path vein are: 0.31 oz/ton Au, 4.94 oz/ton Ag, 0.012% Cu, 0.004% Pb, 0.209% Zn over 0.2 m. and 0.29 oz/ton Au, 4.97 oz/ton Ag, 0.175% Cu, 0.130% Pb, 0.126% Zn over 0.3 m. The Sioux Lookout Staff Geologist examined the Path Vein occurrence in 1989 and took 3 grab samples for assay. The assay results are as follows: Sample GWS-89-34: 7780 ppb Au, 110 ppm Ag, 2170 ppm Cu, 790 ppm Zn, 1110 ppm Pb. Sample GWS-89-35: 5420 ppb Au, 70 ppm Ag, 232 ppm Cu, 550 ppm Zn, 1400 ppm Pb. Sample GWS-89-36: 3330 ppb Au, 42 ppm Ag, 152 ppm Cu, 390 ppm Zn, 216 ppm Pb.

Mineral Record Details

References

Map - Cat Lake-Pickle Lake, geological compilation series, Kenora and Thunder Bay districts

Publication Number: M2218 Scale: 1:253,440    Date: 1976

Author: Sage R.P., Breaks F.W., Troup W.R.

Publisher Name: Ontario Division of Mines

Location:

MonoMap - Geology of the Cat Lake-Pickle Lake area, districts of Kenora and Thunder Bay

Publication Number: R207 Date: 1982

Author: Sage R.P., Breaks F.W.

Publisher Name: Ontario Geological Survey

Location:

Map - Wesleyan Lake, Kenora District

Publication Number: M2481 Scale: 1:31,680    Date: 1983

Author: Wallace H.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology of the Slate Falls area, District of Kenora (Patricia Portion)

Publication Number: R232 Date: 1985

Author: Wallace H.

Publisher Name: Ontario Geological Survey

Location:

Mono - Mineral Deposits of the Central Portion of Uchi Subprovince, Volume 1, Meen Lake to Kesagiminnis Lake Portion

Publication Number: OFR5869 Page: 141  Date: 1993

Author: Seim G.Wm.

Publisher Name: Ontario Geological Survey

Location:

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