Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42B01NE00045

Record: MDI42B01NE00045

General

Commodities

Primary Commodities: Zinc, Silver

Secondary Commodities: Gold, Copper

Location

Township or Area: Penhorwood

Latitude: 48° 9' 43.75"    Longitude: -82° 1' 43.79"

UTM Zone: 17    Easting: 423495.06   Northing: 5334834.82    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42B01NE

Point Location Description: Centre of the western north - south trench.

Location Method: Field Visit with GPS

Access Description: Access is easy via the Kenogaming and Penhorwood Main Haul roads to Penhorwood Township, and then a series of secondary forest access road terminate next to the trench.

Exploration History

1946: Kalbrook Mining (Penko) carried out a reconnaissance geological mapping program in the area but did not report any outcrops in the vicinity of the showing. 1952: Canadian Johns Manville explored a large part of Penhorwood Township over twenty years in the search for asbestos. The work in this area consisted of geological mapping and magnetic surveys. 1959: Kukatush Mining commissioned a magnetic survey over the iron formation as a precursor to an iron exploration program. This was followed by several drill programs over seven years consisting of fourteen holes. Milne (1972) mentioned the occurrence of base metals associated with the iron formation were found during this work but no specific records are currently on file. 1982: W. Karvinen started prospecting the ground in the search for gold mineralization. 1984 Quinterra Resources optioned the property then covered the area with a magnetic survey and excavated a number of trenches. 1985: W. Karvinen geologically mapped the area in detail and discovered sphalerite and chalcopyrite mineralization associated with iron formation in one of the previously excavated trenches. Values up 0.9% Zn 0.1% Cu and 11g/t Ag were reported in selected grab samples. 1986: Utah Mines optioned the property and covered the area with magnetic, VLF-EM, HLEM, and an IP survey. Four gold targets away from the zinc mineralization were tested with a diamond drill some distance from the zinc mineralization. 1995: Band-Ore – IP, Mag, DD – 1 – 137m. 2005: Golden Chalice Resources Inc. – AEM, AMag. 2007: Golden Chalice Resources Inc. – AEM, AMag, Assays, Samp, Str. 2007-2008: Golden Chalice Resources Inc. – IP, Mag, EM, Lc. 2009-2010: Golden Chalice Resources Inc. – EM, Lc, IP. 2010: Golden Chalice Resources Inc.- DD – 6 - 965m, Assays, DD – 4 – 650m, EM, Lc, IP, Mag. 2012: Rogue Resources Inc. – Mag.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Geological Age: Neoarchean   Geochronological Age: 2700-2705 MA   Geochron. Age Ref.: GOO VOL 1

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (S Fumerton) - The iron formation is folded and brecciated with possible local shears. This deformation may be related to a northeast trending shear zone that is adjacent to the iron formation.

Lithology

Lithology Comments

Feb 09, 2016 (S Fumerton) - The host iron formation consists of a central core of thin and thickly bedded chert with some thin interbedded magnetite - chert beds up to 20cm thick. On either side of the oxide facies there are thickly bedded ill defined horizons of sulphide facies iron formation. The iron formation has been folded and brecciated. Underlying the iron formation is a series of felsic pyritic schists probably derived from the felsic pyroclastic rocks of the Hanrahan Complex. These schists have been intruded by a massive, coarse grained, regionally extensive diabasic dyke which has a leuco gabbroic composition. Structurally overlying the iron formation is a sequence of mafic meta volcanics.

Mineralization

Mineralization Comments

Dec 07, 2005 (S Fumerton) - The reported sphalerite was not found on revisiting the trench, but there are some pyrite - chlorite rich secondary veins up to 5cm thick subparallel to the bedding. These sulphide veins are locally in contact with attenuated quartz veins.

Feb 09, 2016 (A Wilson) - Sampling by Karvinen in 1982 returned assays of up to 0.9% Zn, 0.1% Cu and 11 g/t Ag. Grab samples collected by the OGS in 1992 returned 0.3 gpt Au.

Feb 09, 2016 (P Bousquet) - Channel sampling performed by Golden Chalice Resources Inc. returned assays to up to 2.02% Zn, 952 ppm Cu and 2.81 ppm Au (T-5611). The company proceeded with two holes, TW10-02 and TW10-03, which intersected two disseminated sphalerite zones within felsic ash tuffs and a narrow semi-massive sulphide zone at the contact between a sulphidic chert horizon and peridotites. The best intersection came from hole TW10-02 with 3.46% Zn over 0.75 metre (T-6194).

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

References

Map - Precambrian Geology, Northern Swayze Greenstone Belt

Publication Number: M2627 Scale: 1:50,000    Date: 1995

Author: Ayer J.A.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology of the Kukatush-Sewell Lake area, District of Sudbury

Publication Number: R097 Scale:     Date: 1972

Author: Milne V.G.

Publisher Name: Ontario Division of Mines

Location:

MonoMap - Mineral Prospects of the Swayze Greenstone Belt (Volume 1, Parts of NTS 41 O and Volume 2, Parts of NTS 41 P, 42 A and 42 B)

Publication Number: OFR5912 Scale:     Date: 1995

Author: Fumerton S.L., Houle K.A.

Publisher Name: Ontario Geological Survey

Location:

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