Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000003169

Record: MDI000000003169

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Silver, Zinc

Location

Township or Area: Black River Area

Latitude: 48° 53' 39.52"    Longitude: -85° 45' 38.97"

UTM Zone: 16    Easting: 590827   Northing: 5416447    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42C13NE

Point Location Description: Tr-10-4 trench location from Assessment report 20000006325

Location Method: Data Compilation

Access Description: The property is not road accessible, but a trail crossing the property to the northwest shoreline of Dotted Lake is suitable for ATVs. The closest road is a logging road situated approximately 1 km north of the claims. This logging road branches east from Highway 614 at a point either 31 km south of Manitouwadge or 19.2 km north of the junction of Highway 614 with Highway 17, the TransCanada Highway. A blazed trail, starting at a distance of 8.2 km from Highway 614 along this logging road, leads into the property to the north end of Dotted Lake

Exploration History

1965: Irish Copper Mines Ltd. flew airborne magnetometer and EM surveys. 1983: Clear Mines Ltd. carried out mapping, prospecting, and soil sampling. 1984: Clear Mines conducted ground VLF-EM and magnetometer surveys. 1985: Clear Mines flew airborne magnetometer and EM surveys. 2005: Gemstar Resources Ltd. carried out line cutting, and magnetic and VLF-EM surveys. 2008: Gemstar carried out soil sampling. 2009: Rouge Resources Ltd. carried out soil sampling. 2010: Rouge Resources carried out prospecting, trenching, mapping, and sampling. 2020: Panther Metals PLC carried out stripping and sampling. 2021: Panther Metals drilled 1 DDH totalling 402 m.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Schreiber-Hemlo

Geological Age: Archean  

Metamorphism Grade: Amphibolite

Lithology

Lithology Comments

Sep 28, 2022 (Therese Pettigrew) - The predominant rock type in the Dotted Lake arm is foliated, fine grained, dark green, amphibole-rich metavolcanic rock. Medium- and coarse-grained amphibolites are less common and occasional remnant pillow textures have been observed indicating a submarine depositional environment. Small sills and dykes of granitoid rocks are common in the volcanic rocks. A few thin (1 cm to 30 cm) layers of intermediate to felsic volcanic tuffs were observed in the area just north of Dotted Lake in the general vicinity of the Fairservice showing (Pauwels, 2005). A small patch of intermediate volcanics is indicated on Milne’s map (Milne 1968) in the same area and short sections of felsic volcanic rocks were intersected in the Noranda drill holes (Degagne 1991). Magnetite, pyrrhotite-rich and garnetiferous amphibolitic iron formation is reported from drill holes 2 and 3 drilled by Noranda and contains massive sphalerite at the Fairservice showing. These horizons, although volumetrically a small proportion of the rocks in the area, appear to be continuous along strike within the metavolcanic rocks according to geophysical surveys. Foliation of the metavolcanic rock is persistently east-northeasterly trending within an isoclinal syncline within the metavolcanics of the Dotted Lake Arm. This syncline appears to plunge to the west-southwest. The metamorphism within the belt is amphibolite grade. Trench Tr-10- 4 is located approximately 500 m south east of Fairservice zinc showing and it is 147 m long by 4 m wide with an average depth of 2 m. TR-10-4 exposed granodiorite and gneissic-porphyritic rocks with narrow shear zones. The shear zones are 0.1 to 3.0 m wide, trend roughly east west, are pyrite rich with predominantly gneissic characteristics (Assessment report 20000006325),

Mineralization

Mineralization Comments

Sep 28, 2022 (Therese Pettigrew) - During the 2010 trenching program a new zone of mineralization was discovered in trench Tr-10-4. This zone consists of a narrow (approximately 30 cm wide) sheared granitoid rock, with 510% pyrite, strong sericite and trace of arsenopyrite. Grab sample I920008 taken from this rock unit returned a grade of 16.95 ppm Au, 218 ppm Zn and 7.7 ppm Ag. The same unit was channel sampled later on as part of Tr-10-4 channel sampling and returned an assay of 9.02 ppm Au, 859 ppm Zn and 1.2 ppm Ag over 0.40 m. Sample H073934 returned 1.14 ppm Au over 1.00 m. This shear zone appears to be related to shearing noted in the northern part of the property, following the same east-west trend. Trench Tr10-4 is predominantly granite, granodiorite (some are gneissic) and quartz monzonite. The only well mineralized portions of this trench are two narrow, 30-40 cm wide, shear zones with up to 10% pyrite, strong sericite alteration and local patchy translucent quartz eyes (Assessment report 20000006325). Sampling by Panther Metals in 2020 returned 18.9 g/t Au & 0.94 g/t Ag and 9.37 g/t & 1.73 g/t Ag from two of their seven samples (Panther Metals Nov 5, 2020 press release; https://polaris.brighterir.com/public/panther_metals/news/rns/story/x5ojz0r). DDH PD-DL21-01 returned 0.9 m @ 1.73 g/t Au from 47.3 m, 1 m @ 1.05 g/t Au from 122.2 m, 1 m @ 1.59 g/t Au from 136.2 m, and 1 m @ 1.04 g/t Au from 158.2 m (Panther Metals Jan 24, 2022 press release; https://www.investegate.co.uk/panther-metals-plc/rns/dotted-lake-drilling-update/202201240700163514Z/).

Assay Samples

Mineral Record Details

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