Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001998

Record: MDI000000001998

General

Mineral Record Identification
Record Name(s) T Zone - 1996, Ternowesky Zone - 1988, West Zone - 1984
Related Record Type
Related Record(s)
Record Status Occurrence
Date Created 2016-Aug-18
Date Last Modified 2024-Aug-13
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Duckworth

Latitude: 48° 31' 22.33"    Longitude: -90° 2' 21.44"

UTM Zone: 15    Easting: 718603   Northing: 5378651    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52B09SE

Point Location Description: GPS

Location Method: Based on Assessment

Access Description: Access to the property is relatively simple, from Highway #11, enter the Shebandowan turn-off and keep going on the paved road leading to the former Inco Shebandowan Mine. About 2 kilometres from the highway, a main logging gravel road, the Duckworth road, heading south, gives a good access to the claims.



Exploration History

1896: In the Goldcreek area, gold was first reported by government geologist on the shores of Gold Creek and these old workings are still evident today. The property at the time was known as the Quartzite Mine and located within the confines of the Creek Zone. 1943-44: Gunflint Iron Mines Ltd. completed a surface work program of prospecting, channel sampling and 2,796 feet (852 m) of diamond drilling (12 holes) to test the Matawin iron formation, 1956-57: Monpre Mining Company Ltd. explored a block of claims along the Matawin iron formation in central Duckworth and Laurie townships. Ground geophysics, geological mapping and 10,592 feet (3,228 m) of diamond drilling delineated 100 million tons of 30% Fe and an open pit mining pre-feasibility plan was prepared. 1983-84: John Ternowesky, D. Walsten and W. Hayne staked several claims in the Goldcreek area in 1983 and optioned them to Jalna Resources Ltd. Jalna completed a significant exploration program including ground and airborne surveys, geological mapping, geochemical surveys, trenching, sampling and overburden drilling. The Jalna exploration program consisted in mapping 50.2 line miles (81 km), Magnetic ground survey 34.1 line miles (54.9 km), I.P. 17.5 line miles (28.2 km), VLF-EM16 ground survey 4.6 line miles (7.4 km), airborne-geophysics 420 line miles (676 km), overburden drilling (243 holes), soil sampling (2,352 samples) and assaying by ICP method 30 elements plus gold by FA, rock chip analysis of 283 samples and assaying by ICP method 30 elements plus gold by FA, 18 pits excavated and 2,090 feet (637 m) of trenching. Jalna outlined several gold mineralized zones with disseminated pyrite in sericitized felsic volcanics – felsic sericite schists coinciding with gold arsenic geochemical anomalies (North, South, Ternowesky and Creek zones). Jalna through the supervision of GML Minerals Ltd. subcontracted Paterson, Grant and Watson Ltd. to do ground magnetics and IP geophysics on the Goldcreek Property. 1984-1985Anaconda Canada Exploration Ltd. (“Anaconda”) followed up the work completed by Jalna with 3,665 feet (1117 m) of diamond drilling, in 13 holes and confirmed the anomalous gold values over large areas in the I-Zone areas, South-Zone, North-Zone, Ternowesky Zone and Creek-Zone. The highest gold value obtained on the drilling program between the North Zone and South Zone was 4.1 g/t Au and at the Ternowesky Vein an intersection of 18 metre depth assayed 0.77 g/t Au over 1.0 m. The Ternowesky Showing was tested with hole GC-5 testing a surface mineralization of 1.0 m wide by 12.0 m in strike length assaying 35.65 g/t Au and 295 g/t Ag. 1987: Inco Gold Company (“Inco”) prospected over several areas and selected areas of anomalous gold mineralization were stripped and trenched. 2023: John Ternowesky completed airborne geophysics (AEM, AMG) and prospecting, sampling and assaying.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.39442 20000003511 20000003511
OM84-355 52A12SE8102 52A12SE8102
52B09SE2018 52B09SE2018 52B09SE2018
20000021037 20000021037
20000021480 20000021480

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Shebandowan

Geological Age: Archean  



Geology Comments

Aug 18, 2016 (Andrew Tims) - The NE trending Ternowesky Zone, sited entirely within the felsic-intermediate metavolcanic complex, is exposed in several outcrops from Gold Creek to an outcrop on the east side of the lumber road and in an outcrop-trench and small pit in the woods to the west of the road. Massive, feldspar- and quartz-phyric dacite (unit la) in thewestern part of the zone passes into the more proximal intrusive-extrusive porphyry complex, characterized by many crosscutting contacts (unit Ib). Hydrothermal fracturing and intense sericite-pyrite alteration are locally pervasive in the roadside outcrop and very locally in the pit.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Felsic lava flow-unsubdivided 1 Near
Vein 2 Host

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
2PyriteEconomicOre
3GalenaEconomicOre
4SilverEconomicOre

Mineralization Comments

Aug 18, 2016 (Andrew Tims) - The felsic, silicified, sericitized, pyritized schists – felsic volcanics/tuffs contain 0.5% to 2% disseminated pyrite and with locally strongly oxidized zones with 8% sulphides – 5% to 7% pyrite, 1% to 2% galena and traces of chalcopyrite and sphalerite. Assay values of 293.52 g/t Au (8.5 oz/t), 1090 g/t Ag, 0.81% Pb, 0.07% Cu and 0.04% Zn; 2.67 g/t Au, 0.03% Pb and 0.08% Zn and 0.71 g/t Au, 0.05% Pb and 0.10% Zn are common. In the Ternowesky Zone (T Zone), Jalna selected grab samples which can be traced along a strike length of 12.2 m and averaging 0.9 m in width grades 32.34 g/t Au and 267.45 g/t Ag. There is also some sphalerite and galena present assaying 0.31% Zn and 0.02% Pb (W.Hanych 1984). Grab samples collected of vein material within pyritic sericite schists assayed up to 92.30 g/t Au and 1268.83 g/t Ag.



Mineral Record Details

References

Book - Independent Technical Report, Goldcreek Property, Shebandowan Area, Ontario, Canada

Publication Number: Date: 2008

Author: Mengold Resources Inc./Solomon Resources Ltd.

Publisher Name: Caracle Creek International Consulting Inc.

Location:


Mono - Geological setting of gold mineralization in the western part of the Shebandowan Greenstone belt, District of Thunder Bay, northwestern Ontario

Publication Number: OFR5636 Date: 1987

Author: Chorlton L.B.

Publisher Name: Ontario Geological Survey

Location:


Map - Precambrian Geology, Duckworth Township

Publication Number: M2621 Scale: 1:20,000    Date: 1995

Author: Rogers M.C.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Precambrian Geology, Adrian, Marks, Sackville, Aldina and Duckworth Townships

Publication Number: R295 Date: 1995

Author: Rogers M.C., Berger B.R.

Publisher Name: Ontario Geological Survey

Location:


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