Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI32D12SW00212

Record: MDI32D12SW00212

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Copper, Molybdenum, Lead

Location

Township or Area: Garrison

Latitude: 48° 30' 29.77"    Longitude: -79° 57' 29.44"

UTM Zone: 17    Easting: 576948.335   Northing: 5373318.794    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 32D12SW

Point Location Description: Diamond drill holes

Location Method: Conversion from MDI

Exploration History

1945-47: Wright-Hargreaves diamond drilled eight holes totalling 1,944 ft on claim no. 43903 (now patented), part of a contiguous 10 claim group in north central Garrison Township. 1988: By this date, Lac Minerals had acquired the (now patented) claims formerly held by Wright-Hargreaves Mines and adjacent Hastings claims. Lac Minerals completed 17 drill holes totalling 4,823 m on the 903 Zone. 1990: Jonpol and T&H concluded an option agreement with Lac Minerals which expanded the existing property and allowed Jonpol and T&H the opportunity to investigate the 903 and Hastings gold zones (specifically claims L43903 of the Wright-Hargreaves Group and L43862 of the Hastings Group) which extend eastward onto the southeast corner of the Garrison property (claim L29734). 1991: The Lac Minerals agreement was terminated and the Hastings and Wright-Hargreaves properties along with five peripheral claims south of the Garrcon were returned to Lac Minerals. 2004-08: ValGold completed no work on the 903 Zone. 2009-15: Northern Gold completed six drill holes totalling 1,914 m during its 2013 903 Zone diamond drill program. The 2011 IP geophysical survey also covered the 903 area, as did the 2010 and 2013 magnetic and VLF/EM survey. 2016: Osisko drilled 7 DDH totalling 2445 m. 2017: Osisko drilled 108 DDH totalling 40,629.5 m. 2018: Osisko drilled 2 DDH totalling 1180 m and performed a heap leach test. 2022: Moneta Gold released an NI 43-101 report and resource estimate for the property.

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Geological Age: Archean  

Lithology

Lithology Comments

May 08, 2023 (Therese Pettigrew) - Three different magmatic groups are identified at the 903 deposit. The syenites are typically hosted by deformed ultramafic rocks, although they less commonly occur within the mafic volcanics. Although most of the primary textures in the syenites have been totally or partially destroyed by alteration, three families of syenite dykes were identified at the 903 deposit (Hennessey, 2019), as follows: 1) Fine-grained “crowded” porphyritic syenite: These syenite intrusions occur most abundantly in the eastern part of the 903 Zone. The syenites are generally fine- grained, with less than 25% of matrix visible and with phenocrysts less than 4 mm. Despite increased intensity of alteration, feldspar phenocrysts are still visible. 2) Fine- to medium-grained porphyritic syenite: Generally, with a greater percentage of matrix (>25%), with more separation of phenocrysts. This phase appears to be least preserved in terms of texture. 3) Coarse-grained porphyritic syenite: These syenites are coarse-grained with euhedral feldspar phenocrysts up to 3 to 4 cm long. This family of syenites is more dominant in the western part of the 903 Zone (Raponi and Dufresne, 2022).

Mineralization

Mineralization Comments

May 08, 2023 (Therese Pettigrew) - Extensive drilling by Osisko in 2016 to 2018 has helped classify the mineralization style at the 903 deposit as primarily a traditional “syenite associated deposit”. Accessory sulphide minerals associated with anomalous gold grades are reported to include pyrite, hematite, chalcopyrite, molybdenite and galena. The presence in hornblende altered mafic volcanic rocks and quartz-biotite-cordierite schists and/or gneisses may be a contact metamorphic aureole around the Garrison Stock, located several hundred metres south of the 903 Zone. Fractured and/or pyritic and/or quartz vein bearing syenite dikes within the 903 deposit are anomalously auriferous along significant core lengths (ranging from about 30 cm to about 10 m). Historic and current drilling has traced the zone along 1,840 m of strike length. The zone remains open at depth and along strike. (Raponi and Dufresne, 2022).

Mineral Record Details

References

Part - Geology of Garrison Township

Publication Number: ARV58-04 Page: 26-27  Date: 1997

Author: Satterly J.

Publisher Name: Ontario Dept. of Mines

Location:

Publication - Tower Gold Project, NI 43-101 Report & Mineral Resource Estimate

Publication Number: 2022 NI 43-101 Date: 2022

Author: Raponi, T.R., Dufresne, M.B.

Publisher Name: Ausenco Engineering Canada for Moneta Gold Inc

Location: SEDAR

Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area

Publication Number: OFR5735 Page: 778-785  Date: 1990

Author: Bath A.C.

Publisher Name: Ontario Geological Survey

Location:

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