Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A09SW00021

Record: MDI42A09SW00021

General

Commodities

Primary Commodities: Gold, Zinc, Lead

Secondary Commodities: Copper, Silver, Molybdenum

Location

Township or Area: Beatty

Latitude: 48° 32' 58.31"    Longitude: -80° 18' 25.11"

UTM Zone: 17    Easting: 551145   Northing: 5377613    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 42A09SW

Point Location Description: Pits 0.80 km north and 2.10 km west of the southeast corner of Beatty Township.

Location Method: Data Compilation

Access Description: Best access to the occurrence area in the north half of lot 3, concession I, Beatty Township is via a north striking, ATV passable, dirt road leading to the Stewart-Abate Gold Mines Ltd. shaft area which intersects Highway 101 at the lot 3/4 common boundary. A trail leading to a prominent outcrop mass in the northern part of the south half of lot 3, concession I, Beatty Township from Highway 101 (Satterly and Armstrong 1949) is about 530 m east of the Stewart-Abate Gold Mines Ltd. shaft access road, but this trail is badly overgrown and difficult to follow.

Exploration History

1916: C.A. Foster - Prospecting on the Johnson veteran claims. 1949: Guinea Gold Mines Ltd. - owned patented claim. 1972-1974: Canadian Johns-Manville Co. Ltd. - purchased north half of lot 3, concession 1; prospecting, mapping, magnetic, VLF-EM, botanical survey, till sampling, As part of base metals (Cu,Mo) exploration in southeastern Beatty and northeastern Hislop Townships, Canadian Johns-Manville Co. prospected; completed geological, magnetic, VL electromagnetic, and geobotanical surveys; and sampled till. 2003: Lake Shore Gold Corp. - airborne geophysics.

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) - Detailed geological mapping in the area shows that bedrock has been subjected to 2 deformational events. D1 is characterized by the development of east southeast striking (locally) overturned folds which may plunge southwest. D2 is characterized by the development of: a) closely spaced northeast striking folds which plunge southwest; and b) cross faults and/or shears (both with and without associated quartz-carbonate veins) with limited associated apparent horizontal displacement which strike subparallel to F2 fold axes. Conclusions reached by J.H. Morris based on mapping completed in 1972 may be summarized as follows: 1. Bedrock in the area has been subjected to two deformational events. D1 is characterized by the development of overturned F1 folds which strike southeast (and possibly plunge northwest) and a weakly developed S1 cleavage which strikes subparallel to F1 fold axes. D2 is characterized by the development of northeast striking and moderately southwest plunging F2 folds, northeast striking cross faults, and a generally well developed but sporadically distributed S2 cleavage which may be manifested by development of sericite. 2. The porphyry plug in the northern part of the property has been affected by both D1 and D2 and therefore its intrusion predates both deformational events. 3. Sulfide mineralization in the area (including Porcupine Group hosted quartz-carbonate veins with and without associated pyrite, molybdenite, chalcopyrite, pyrrhotite, and gold; and diorite hosted pyrite-chalcopyrite-sphalerite-galena-quartz mineralization) is consistently associated with the development of S2 cleavage and is therefore likely to be (relatively) late stage.

Lithology

Lithology Comments

Feb 11, 2016 (R Degagne) - Bedrock in the area consists mainly of east southeast striking and steeply south dipping overturned metamorphosed (greenschist or lower metamorphic facies) turbiditic wackes and argillites of the (Archean) Porcupine Group which face north. Intrusive rocks in the area include a small (500x350 m) feldspar porphyry plug (in the northern part of the property), narrow feldspar porphyry dikes, a 60-120 m thick sill-like body of diorite (in the southern half of the property), and lamprophyre dikes . The best mineralized samples obtained by the present writer were from a pit exposing base metals and significant associated precious metals (gold and silver) mineralization associated with hydrothermal quartz material hosted by a carbonatized northeast striking shear developed in the dioritic sill.

Mineralization

Mineralization Comments

Feb 11, 2016 (R Degagne) - Most pits in the sediments were blasted into narrow (1-10 cm wide), apparently locally developed and discontinuous glassy quartz and quartz-carbonate veinlets which sometimes contain traces of disseminated molybdenite and less than 1 mm size molybdenite flakes localized along the (typically sharp) veinlet margins. Occasionally, less than 3% of 1 mm pyrite cubes are developed marginal the veinlets in variably sericitized and carbonatized sediments. Visible gold, chalcopyrite and pyrrhotite are reported to occur west of the Guinea Gold Mines claims on the Stewart-Abate Gold Mines claims in similar quartz-carbonate veinlets, but these minerals were not observed at the Guinea, occurrence by the present writer. One pit in the central part of the property was blasted into the diorite sill and exposed quartz-sphalerite-galena-pyrite-chalcopyrite mineralization hosted by altered diorite. Samples from this pit (AB-87-55, -56, and -57) returned anomalously elevated assays for Au, Ag, Cu, Pb, and Zn, and low concentration of As and Mo. Analyses*: AB-87-55 5690 Au ppb (6170 Au ppb), 12.0 Ag ppm, 377 Cu ppm, 5260 Pb ppm, 26800 Zn ppm, 4 As ppm, 11Mo ppm; AB-87-56 5490 Au ppb, 15.8 Ag ppm, 295 Cu ppm, 8410 Pb ppm, 19000 Zn ppm, 6 As ppm, 17 Mo ppm; AB-87-57 1100 Au ppb, 16.2 Ag ppm, 1070 Cu ppm, 8350 Pb ppm, 41600 Zn ppm, 3 As ppm, 20 Mo ppm; AB-87-58 10 Au ppb, 0.4 Ag ppm, 43 Cu ppm, 47 Pb ppm, 121 Zn ppm, 7 As ppm, 1 Mo ppm; AB-87-59 nil Au ppb, 0.3 Ag ppm, 54 Cu ppm, 23 Pb ppm, 48 Zn ppm, 3 As ppm, <1 Mo ppm; AB-87-60 30 Au ppb, 0.3 Ag ppm, 95 Cu ppm, 31 Pb ppm, 119 Zn ppm, 2 As ppm, 26 Mo ppm; AB-87-62 50 Au ppb, 0.2 Ag ppm, 97 Cu ppm, 28 Pb ppm, 33 Zn ppm, 3 As ppm, 1 Mo ppm; AB-87-62 30 Au ppb, 0.2 Ag ppm, 39 Cu ppm, 9 Pb ppm, 29 Zn ppm, 2 As ppm, 5 Mo ppm; AB-87-64 60 Au ppb, 0.2 Ag ppm, 136 Cu ppm, 21 Pb ppm, 50 Zn ppm, 1 As ppm, 53 Mo ppm * All assays performed by Swastika Labs., Swastika, Ontario.

Alteration Comments

Dec 07, 2005 (R Degagne) - The best mineralized samples obtained by the present writer were from a pit exposing base metals and significant associated precious metals (gold and silver) mineralization associated with hydrothermal quartz material hosted by a carbonatized northeast striking shear developed in the dioritic sill. Samples from waste piles adjacent to the old trenches observed by the present writer consist of white quartz and quartz-Fe-dolomite vein material hosted by sericitized and Fe-dolomitized subfeldspathic wacke.

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:

Part - Geology of Beatty Township

Publication Number: ARV56-07 Page: 28-29  Date: 1997

Author: Satterly J., Armstrong H.S.

Publisher Name: Ontario Dept. of Mines

Location:

Folio - Beatty Township, District of Cochrane

Publication Number: GDIF266 Date: 1997

Author: Kirkland Lake RGO

Publisher Name: Ontario Geological Survey

Location:

Map - Geophysical/geochemical series, Matheson-Black River area, Beatty Township, airborne electromagnetic survey, total intensity magnetic survey, District of Cochrane

Publication Number: M80585 Scale: 1:20,000    Date: 1984

Author: Questor Surveys Ltd.

Publisher Name: Ontario Geological Survey

Location:

Map - Geological series, bedrock samples from the sonic drilling program 1987, Matheson area, District of Cochrane

Publication Number: P3114 Scale: 1:100,000    Date: 1989

Author: Johnstone R.M., Sutcliffe R.H., Steele K.G., Baker C.L., McClenaghan M.B.

Publisher Name: Ontario Geological Survey

Location:

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

Publication Number: OFR5735 Page: 201-209  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: MP119.050S Date: 1997

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

Publisher Name: Ontario Geological Survey

Location:

Map - Black River-Matheson Area

Publication Number: OFM0013 Scale: 1:15,840    Date: 1985

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

Publisher Name:

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:

Map - Geology of Beatty Township

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

Author: Johnstone R.M.

Publisher Name: Ontario Geological Survey

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:

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