Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI32D12SW00221

Record: MDI32D12SW00221

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Silver, Lead

Location

Township or Area: Garrison

Latitude: 48° 30' 58.24"    Longitude: -79° 55' 33.37"

UTM Zone: 17    Easting: 579317.375   Northing: 5374230.874    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 32D12SW

Point Location Description: A point located 2.38 km south and 2.86 km west of the northeast corner of Garrison Township.

Location Method: Data Compilation

Exploration History

Pre- 1933: The claims were prospected and/or owned by J. Otis(?) and the Tough Oaks Mining Company. 1933: The claims were restaked by J. Brydges. 1934: Brydges Gold Mines Ltd. was formed and acquired claims from J. Brydges. 1946: Insgar Mines Ltd., a company formed by Inspiration Mining and Development Co. Ltd. to explore options it held on the Brydges, Linton, and Anderson claim groups in northern Garrison Township (Satterly 1949), completed geological mapping and diamond drilled 7 holes totalling 4,668 feet. 1947: The Insgar Mines option lapsed (Satterly 1949) and the claims reverted to Brydges Gold Mines. Pre- 1985: Canadian Johns-Manville Company of Canada Ltd. diamond drilled on the claims (Clayson Brydges, pers. comm., May, 1988). 1985: As part of a geophysical survey completed for Cream Silver Mines Ltd. and Meridor Resources Ltd. of properties south of the claim group, 3 anomalous bedrock conductors were detected on the Brydges Gold Mines claims. 1986: Jonpol Explorations Ltd. completed a geophysical survey of the Brydges Gold Mines claims which was reported (The Northern Mine, May 12, 1986) to have detected what were believed to be the eastern extensions of auriferous zones that were known to occur on the contiguous Garrcon Mines Ltd. claims. 6 holes totalling 2,245 feet were diamond drilled by Jonpol Explorations (A.D. Drummond, project engineer, Jonpol Explorations Ltd., pers. comm., July 15, 1988). 1987: Coastoro Resources Ltd. (a member of the Jonpol Group of companies) acquired the right to earn a 45% interest in the Brydges Gold Mines (and Linton) claim groups (The Northern Miner, September 7, 1987). Jonpol Explorations completed 6,631 feet of diamond drilling (The Northern Miner, September 28, 1987; A.D. Drummond, project engineer, Coastoro Resources Ltd., pers. comm., July 15, 1988). 1988: As of May, Jonpol Explorations had diamond drilled 16 holes on the property. The core from 7 of these holes (totalling 2,657 m).

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Geological Age: Archean  

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (A Mitchell) - The Brydges Gold Mines claims straddle the (locally east striking) Porcupine-Destor Fault Zone (PDFZ) in the general area where it (or its Southern Branch in the terminology of Jensen and Langford 1985) joins the west to west northwest striking Munro/Pipestone Fault Zone (in the terminology of Jensen and Langford1985, The Middle Branch of the PDFZ). The Porcupine-Destor/Munro/Pipestone Fault Zones (or, or simply, the PDFZ) is complex, consisting of juxtaposed lithologically and structurally distinct faut/shear bounded blocks each of which may be up to several hundred metres in size which in aggregate comprise a zone up to several kilometres in width. The regional metamorphic grade in the area is greenschist or lower metamorphic facies except marginal to felsic intrusions, where narrow amphibolite grade contact metamorphic aureoles may be developed. North of the PDFZ, basement rocks are mainly moderately north dipping and north facing volcanic, volcaniclastic, and sedimentary rocks of the calc alkalic (Archean) Hunter Mine Group and younger komatiitic and tholeiitic volcanic and intrusive rocks of the (Archean) Stoughton-Roquemaure Group (Jensen and Langford 1985, Jensen 1982). South of the PDFZ, mainly northeast striking, steeply south dipping, and south facing tholeiitic basalt of the (Archean) Kinojevis Group occupies part of the north limb of the east striking and east plunging Blake River Synclinorium (Jensen and Langford 1985; Jensen 1982, 1985).

Lithology

Lithology Comments

Dec 07, 2005 (A Mitchell) - Bedrock underlying the Brydges Gold Mines claims (as indicated by Jensen (1982) and Satterly (1949)) consists mainly of complexly folded and variably altered Timiskaming type clastic sediments, tuffs(?), carbonate, and (volumetrically minor) magnetitie ironstone and red jasper which are confined to a fault/shear bounded block which is several hundred metres in width. North and south of the sedimentary block, sheared komatiitic and tholeiitic volcanic rocks and intercalated sedimentary and tuffaceous rocks (as represented now by various talc, chlorite, serpentine, carbonate, and sericite schists)are interpreted by these workers to be in fault/shear contact with the sediments. Intrusive rocks including various syenitic dikes and sill-like bodies (many of which are reported to be variably specularitic, hematitic, and molybdenite bearing),dioritic dikes, and lamprophyre dikes have been noted within both the sediments and the bounding shears. These intrusive rocks also form a ubiquitous component of drill logs from the Brydges Gold Mines and surrounding properties. Although locally complexly folded, the regional strike of the major shear elements which form the PDFZ in this area is easterly; steep dips to the south are suggested by data in the assessment files.

Mineralization

Mineralization Comments

Dec 07, 2005 (A Mitchell) - Anomalous gold mineralization exposed in outcrop is limited (according to Satterly 1949) to two types: auriferious quartz veins and pyritic carbonate. The surface occurrences are reported (assessment files) to have been poorly exposed during 1934, and were evidently no better exposed in 1949 (Satterly 1949). Near the northwest corner of claim 25940, pits and trenches are reported by Satterly to have exposed a 340 striking 6-10 inch wide '...(feldspathic quartz vein)...' (p. 20) which contains galena; when sampled, this is reported by Satterly to have averaged 0.03 ounce of gold per ton and 2.32 ounce of silver per ton. Near the northwest corner of claim 25940 on its north boundary, a second pit is reported (Satterly 1949) to have exposed carbonate bearing 'felsitized' sediment hosting irregular quartz stringers that contain disseminated pyrite; these were reported to also contain visible gold. The Insgar Mines Ltd. diamond drilling is reported (assessment files) to have intersected anomalous (i.e. greater than 0.01 ounce of gold per ton) gold tenors in foliated and carbonatized mafic volcanic) rock associated with quartz and carbonate stringers, in pyritic syenite (with and without associated galena), in diorite, and in pyritic carbonate associated with grey carbonate stringers. Drilling by Jonpol Explorations in 1986 also intersected scattered anomalous gold tenors in pyritic (syenite) intruding variably (brecciated hematitic wake) and (carbonatized and sericitized argillite) assessment files. The sediment encountered in this diamond drilling was also noted to be variably pyritic, with occasional splashes of pyrite and chalcopyrite occupying narrow fractures.

Mineral Record Details

References

File - Resident Geologist files KL-0298, KL-1258

Publication Number: Date:

Author:

Publisher Name:

Location: Kirkland Lake RGP office

Map - Township of Garrison, District of Cochrane, Ontario

Publication Number: M1949-01 Scale: 1:12,000    Date: 1997

Author: Satterly J., Hogg N.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Gneisses of the Parry Sound-Muskoka area: flagstone resources

Publication Number: OFR5725 Date: 1989

Author: Fouts C.R., Marmont C.

Publisher Name: Ontario Geological Survey

Location:

Part - Geology of Garrison Township

Publication Number: ARV58-04 Page: 19-20  Date: 1997

Author: Satterly J.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay

Publication Number: MDC013 Page: 127  Date: 1971

Author: Ferguson S.A., Groen H.A., Haynes R.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

Folio - Garrison Township, District of Cochrane

Publication Number: GDIF360 Date: 1997

Author: Kirkland Lake RGO

Publisher Name: Ontario Geological Survey

Location:

Mono - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file

Publication Number: OFR5467 Page: G0041  Date: 1983

Author: Hodgson C.J.

Publisher Name: Ontario Geological Survey

Location:

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

Publication Number: OFR5735 Page: 720-727  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