Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A09SW00135

Record: MDI42A09SW00135

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Copper, Molybdenum

Location

Township or Area: Beatty

Latitude: 48° 32' 52.99"    Longitude: -80° 18' 45.13"

UTM Zone: 17    Easting: 550736   Northing: 5377445    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 42A09SW

Point Location Description: Shaft

Location Method: AMIS Site Visit

Access Description: Proceed 2.7km west of the junction of highways 101 and 572 on Highway 101. Travel 1.2km north on an ATV trail to the site.

Exploration History

1914: George Abate: staked claims. 1914: Hudson Bay Mining Co.: pitting and trenching, sampling. 1915: Munro Consolidated Gold Mines: sank 104 ft. deep inclined, 2 compartment shaft. 1934-37: Stewart-Abate Gold Mines Ltd.: DD-7-1226 ft., assays above 100 ft. level; numerous core assays averaged more than 1 oz. / ton Au, several averaged more than 3 oz./t Au. 1941: Stewart-Abate Gold Mines Ltd.: shaft deepened to 122 ft.; established 65 ft. level with 220 ft. of drifting (average vein width is 1.8m, average. grade 0.31 oz./t Au) 1973-75: Canadian Johns-Manville Co. Ltd.; mapping., magnetometer, VLF-EM, soil, and till geochemical surveys; DD-14-1636 ft. in shaft area (numerous intersections of > 0.01 oz. Au/ ton were yielded. 1981: Amax Minerals Exploration: reconnaissance geological survey near shaft area. 2003: Canadian Royalties Inc. - magnetometer, IP surveys

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Tectonic Assemblage: Porcupine

Geological Age: Mesoarchean  

Metamorphism Grade: Greenschist

Geology Comments

Feb 11, 2016 (R Degagne) - Bedrock near the shaft (near the east boundary of claim no. 13900, the southeast quarter of the north half of lot 4, concession I, Beatty Township) consists mainly of sparsely exposed southeast to east southeast striking and vertically to steeply south dipping and overturned weakly metamorphosed (greenschist or lower metamorphic facies) turbiditic wackes and siltstones and tuffaceous rocks of the (Archean) Porcupine Group which face north. The Porcupine Group metasedimentary rocks are believed (Johnstone 1987) to be in conformable contact with underlying tholeiitic and komatiitic volcanic rocks of the (Archean) Stoughton-Roquemaure Group about 2 km southwest of the shaft. Porcupine Group rocks are also in fault contact (along the steeply dipping Contact Fault) with overlying Stoughton- Roquemaure Group volcanic rocks about 1.7 km northeast of the shaft, although elsewhere along this contact a conformable (and unfaulted) relationship is indicated. Archean bedrock in the area occupies part of the south limb of the southeast striking and northwest plunging McCool Hill Syncline, the dominant regional scale structure in the central BRIM area north of the Porcupine-Destor Fault Zone. The northwest plunging axis of the McCool Hill Syncline is in north central Munro Township, about 9.2 km northeast of the shaft. Detailed geological mapping completed by Canadian Johns-Manville Co. Ltd. (assessment files) northeast of the shaft in the Guinea Gold Mines Ltd. occurrence area indicates that the area has been subjected to two deformational events. D1 is characterized by the development of overturned folds which strike southeast and possibly plunge northwest. D2 is characterized by development of southwest striking and southwest plunging folds and southwest striking shears and faults.

Lithology

Lithology Comments

Feb 11, 2016 (R Degagne) - Bedrock near the shaft (near the east boundary of claim no. 13900, the southeast quarter of the north half of lot 4, concession 1, Beatty Township) consists mainly of sparsely exposed southeast to east southeast striking and vertically to steeply south dipping and overturned weakly metamorphosed (greenschist or lower metamorphic facies) turbiditic wackes and siltstones and tuffaceous rocks of the (Archean) Porcupine Group which face north. Intrusive rocks near the shaft include a 200-400 foot wide sill-like body of diorite or gabbro which, where sheared, is host to most of the known gold mineralization on the property; a small, variably carbonatized and sericitized feldspar porphyry plug located about 400 m east northeast of the shaft; narrow (generally tens of metres in width) north striking diabase dikes of the (Proterozoic) Matachewan swarm (several of which crop out about 1,200 m west northwest of the shaft); a northeast striking olivine diabase dike of the (Proterozoic) Preissac swarm (exposed about 800 m northwest of the shaft); and narrow (generally less that a metre in width) lamprophyre dikes which intrude both the sediments and the mafic sill.

Mineralization

Mineralization Comments

Feb 11, 2016 (A Wilson) - The main gold-bearing vein is in a fault zone which strikes N70E and dips 70º N. The fault has offset the diorite sill about 150 ft. to the east on the south side of the fault. The fault zone is from 4 to 10 ft. wide, and the rocks within it are heavily carbonatized. That part of the fault zone that is within the diorite sill contains a quartz-carbonate vein which is from 6 to 18 inches wide and sparsely mineralized with pyrite, pyrrhotite, chalcopyrite and rarely, visible gold and molybdenite. Diamond drilling by Canadian Johns-Manville Co. Ltd. in 1975 returned gold values up to 2.91 oz./t Au over 1 ft. Most other gold values ranged from 0.005 oz./t Au over 1.5 ft. to 0.06 oz./t Au over 1.5 ft.

Feb 11, 2016 (R Degagne) - Although now poorly exposed on surface, banded (assessment files) mineralized quartz-carbonate vein material is described to have been 6-18 inches wide where exposed in trenches; sparsely mineralized with pyrite, pyrrhotite, chalcopyrite and, rarely, molybdenite and visible gold; and confined to the shear zone. Fine grained visible gold in the quartz vein is further reported to have been commonly exposed in surface pits and trenches and, where observed by these authors, was often accompanied by chalcopyrite. Spectacular gold samples are reported to have been obtained from an 8 foot deep open cut situated about 40 feet east of the shaft. Waste pile samples observed by the present writer consisted of variably sheared and pervasively Fe-dolomitized and sericitized sill material of gabbroic or dioritic composition. Vein material in the waste piles is most commonly hosted by Fe-dolomite-sericite-(pyrite) schist, which usually clearly represents sheared or mylonitized mafic intrusive rock. At least three distinct types of vein/veinlet material are represented by the waste samples: a) coarse grained white bull quartz; b) medium to coarse grained white to grey quartz-(tourmaline)-(pyrite) vein material with a waxy luster; and c) narrow (2-3 cm wide) fine to coarse grained rusty weathering Fe-dolomite vein material. Analyses*: Sample AB-86-85: <10 Au ppb, ---- As ppm. Sample AB-86-87: 4082 Au ppb, 97.7 As ppm. Sample AB-86-88: <10 Au ppb, 70.0 As ppm. Sample AB-86-90: <10 Au ppb, ---- As ppm. Sample AB-86-91: 2880 Au ppb, ---- As ppm. * All assays performed by Accurassay Laboratories Ltd., Kirkland Lake.

Alteration Comments

Dec 07, 2005 (R Degagne) - Alteration minerals associated with both free gold in quartz- carbonate-(tourmaline)-pyrite-molybdenite veins and gold associated with altered schist marginal to vein systems within narrow, steeply dipping and east northeast striking shears at the Stewart-Abate deposit include pyrite, Fe-dolomite,sericite, and possibly hematite. Waste pile samples observed by the present writer consisted of variably sheared and pervasively Fe-dolomitized and sericitized sill material of gabbroic or dioritic composition. Vein material in the waste piles is most commonly hosted by Fe-dolomite-sericite-(pyrite) schist, which usually clearly represents sheared or mylonitized mafic intrusive rock.

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Shear

References

Map - Quaternary geology of Matheson area, Cochrane District

Publication Number: P2735 Scale: 1:50,000    Date: 1985

Author: Vagners U.J.

Publisher Name: Ontario Geological Survey

Location:

Map - Township of Beatty, District of Cochrane, Ontario

Publication Number: M1947-02 Scale: 1:12,000    Date: 1997

Author: Satterly J., Armstrong H.S.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Geological Compilation of the Lake Abitibi Area, Abitibi Greenstone Belt

Publication Number: P3398 Scale: 1:100,000    Date: 1999

Author: Ayer J.A., Berger B.R., Trowell N.F.

Publisher Name: Ontario Geological Survey

Location:

Part - The Beatty-Munro gold area

Publication Number: ARV24-01.004 Page: 182  Date: 1998

Author: Hopkins P.E.

Publisher Name: Ontario Bureau of Mines

Location:

Map - Geology of Beatty Township

Publication Number: OFM0158 Scale: 1:15,840    Date: 1991

Author: Johnstone R.M.

Publisher Name: Ontario Geological Survey

Location:

Part - Abitibi-Night Hawk gold area, District of Timiskaming

Publication Number: ARV28-02.001 Page: 54  Date: 1998

Author: Knight C.W., Burrows A.G., Hopkins P.E., Parsons A.L.

Publisher Name: Ontario Bureau of Mines

Location:

Map - Geological Compilation: Beatty and Munro Townships

Publication Number: P3395 Scale: 1:20,000    Date: 1999

Author: Barrie C.T.

Publisher Name: Ontario Geological Survey

Location:

Part - Mines of Ontario in 1941

Publication Number: ARV51-01.003 Page: 192-193  Date: 1997

Author: Tower W.O., Smith R.L., Cave A.E., Cooper D.F., Taylor J.B., Bawden W.E., Little E.S., Weir E.B., Douglass D.P.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Geology of Beatty Township

Publication Number: ARV56-07 Page: 30-21  Date: 1997

Author: Satterly J., Armstrong H.S.

Publisher Name: Ontario Dept. of Mines

Location:

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

Publication Number: OFR5467 Page: G0011  Date: 1983

Author: Hodgson C.J.

Publisher Name: Ontario Geological Survey

Location:

Article - Mineral deposits investigations in the Black River-Matheson (BRIM) area, District of Cochrane

Publication Number: MP119.053 Page: 309  Date: 1997

Author: Whittaker P.J., Malczak J.

Publisher Name: Ontario Geological Survey

Location:

Folio - Beatty Township, District of Cochrane

Publication Number: GDIF266 Date: 1997

Author: Kirkland Lake RGO

Publisher Name: Ontario Geological Survey

Location:

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

Publication Number: OFR5735 Page: 166-182  Date: 1990

Author: Bath A.C.

Publisher Name: Ontario Geological Survey

Location:

Article - Precambrian geology of the Black River-Matheson (BRIM) area, District of Cochrane

Publication Number: MP126.056S Date: 1997

Author: Johnstone R.M., Trowell N.F.

Publisher Name: Ontario Geological Survey

Location:

Article - Quaternary geology and geochemical exploration in the Matheson area

Publication Number: MP140.294 Page: 112-123  Date: 1997

Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.

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