Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI32D05NW00166

Record: MDI32D05NW00166

General

Commodities

Primary Commodities: Copper, Gold

Secondary Commodities: Silver

Location

Township or Area: Harker

Latitude: 48° 27' 56.97"    Longitude: -79° 50' 42.37"

UTM Zone: 17    Easting: 585371   Northing: 5368720.99    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 32D05NW

Point Location Description: cluster of drill holes northeast of Ghost River

Location Method: Based on Assessment

Exploration History

1968: Amax Exploration Inc. - DD-2-1397 ft. 1982-83: D. Hurd - magnetic survey, radiometric surveys. 1983-88: Perrex Resources Inc.- ground magnetic and radiometric surveys, mapping, stripping, OVD-32, trenching, IP/resistivity survey, DD-24-24,898 ft. 1985: Sherritt Gordon Mines Ltd. compl. magnetic and VLF EM surveys on ground optioned from Perrex Resources. Lac Minerals Ltd. acq. from Perrex Resources a 50% interest in 191 claims in Harker, Garrison, Elliott, and Thackeray Twps.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Geological Age: Mesoarchean  

Metamorphism Grade: Greenschist

Geology Comments

Jun 29, 2015 (R Degagne) - Bedrock in the area occupies part of the north limb of the east striking and east plunging Blake River Synclinorium. The area of recent (1986-1988) drilling is about 6.3 km south of the east striking Porcupine-Destor Fault Zone. At least part of the anomalous gold mineralization has been interpreted (assessment files) to be spatially associated with the southwest extension of the Ghostmount Fault Satterly interpreted this fault to exist marginal to a prominent southwest striking magnetic anomaly in northern Holloway Township which occurs south of the Porcupine-Destor Fault Zone. Recent electromagnetic surveys of Harker and Holloway Townships show that the magnetic anomaly which (by definition) defines the feature now known as the Ghostmount Fault extends continuously from northern Holloway Township into southwest Harker Township (and beyond, to the southwest). Diamond drilling by Canamax Resources Inc. which eventually led to the delineation of the Mattawasaga deposit (spatially associated with the Ghostmount Fault) demonstrated that a narrow fault zone does indeed occur approximately where Satterly interpreted it to be. Diamond drilling by Perrex Resources/Lac Minerals has intersected narrow zones of chloritic and/or muddy fault gouge which areassociated with the anomalously auriferous zones; these are interpreted by Perrex Resources geologists to represent the southwest extension of Satterly's Ghostmount Fault.

Lithology

Lithology Comments

Jun 29, 2015 (R Degagne) - Geological mapping indicates that bedrock in the area consists of weakly metamorphosed (greenschist or lower metamorphic facies) northeast striking, steeply south dipping, and south facing tholeiitic basalt of the (Archean) Kinojevis Group. Bedrock exposure is largely glacial drift covered, but diamond drilling has revealed that in addition to basalt, significant thicknesses (core lengths up to 480 feet in length) of clastic and variably carbonaceous interflow sediment also occur within the Kinojevis Group in the area. Intrusive rocks in the area include mafic, intermediate, felsic, and syenitic bodies of unspecified size and geometry (as revealed by diamond drilling) and occasional narrow (tens of metres in width) north striking diabase dikes of the (Proterozoic) Matachewan swarm

Mineralization

Mineralization Comments

Jun 29, 2015 (A Wilson) - Drill hole No.KX27-68 intersected two core sections (one 4 ft long, the other 7 ft long) which assayed 0.01 oz Au / ton. Both of these intersections were below 588 ft. One intersection was in a quartz-calcite vein in a sheared and fractured zone and the second intersection was between 675 and 682 ft. within a sequence of mafic metavolcanics rocks. Copper values were intersected in a sequence of carbonatized metasediments near the top of the drill hole, as well as in mafic to intermediate metavolcanics throughout the drill hole. Higher values up to 0.04% Cu over 10 ft were recovered from shear zones. One 8 ft section of mafic metavolcanics between 635 and 643 ft. assayed 0.06% Cu and a 5 ft. section of core between 605 and 610 ft assayed 0.07% Cu and 0.005 oz/t Au. Silver values up to 1.2 ppm over 1 ft. were found within the upper sections of the drill hole within carbonatized metasediments.

Jun 29, 2015 (R Degagne) - The only documented occurrences of anomalous (0.01 ounce of gold per ton or greater) gold tenors the area are from two narrow (4 foot and 7 foot) core lengths of sheared and fractured basalt which are reported to have assayed 0.01 ounce of gold per ton (assessment files). This auriferous material is reported to be hosted by quartz-calcite hydrothermal breccia and is reported to be associated with elevated (10-25%) pyrite contents. This auriferous material was intersected by Amax Exploration Inc. hole No.KX27-68.

Mineral Record Details

Site Visit Information

Date: Feb 16, 1997

Geologist: R Degagne

Notes: The discovery in southwest Harker Township of what appears to be Holt-McDermott type gold mineralization is significant. Should the Perrex occurrence auriferous zones prove to be potentially economic, or should they prove to be sufficiently interesting to justify further exploration in the area, and if this mineralization is spatially associated with the Ghostmount Fault, there is reason to expect analogous gold mineralization to occur elsewhere along the Ghostmount Fault between the Perrex Resources discoveries and the Porcupine-Destor Fault Zone (a distance of about 15 km) and indeed further along the Ghostmount Fault's strike to the southwest. Recent electromagnetic surveys suggest that the magnetic anomaly with which the Ghostmount Fault is associated (and other magnetic anomalies within the Kinojevis Group south of the Porcupine-Destor Fault Zone) extend more or less continuously along tens of kilometres of strike length in the BRIM area. The Perrex Resources discoveries in southwest Holloway Township suggest that many of these magnetic features have the potential of hosting analogous auriferous zones.

References

Part - Geology of Harker Township

Publication Number: ARV60-07 Date: 1997

Author: Satterly J.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Geology of the north half of Holloway Township

Publication Number: ARV62-07 Date: 1997

Author: Satterly J.

Publisher Name: Ontario Dept. of Mines

Location:

MonoMap - Geology and petrogenesis of the Archean Abitibi belt in the Kirkland Lake area, Ontario

Publication Number: MP123 Date: 1985

Author: Jensen L.S., Langford F.F.

Publisher Name: Ontario Geological Survey

Location:

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

Publication Number: OFR5735 Page: 682-687  Date: 1990

Author: Bath A.C.

Publisher Name: Ontario Geological Survey

Location:

Map - Township of Harker, District of Cochrane, Ontario

Publication Number: M1951-04 Date: 1997

Author: Satterly J., Hogg N.

Publisher Name: Ontario Dept. of Mines

Location:

Map - North part of the Township of Holloway, District of Cochrane, Ontario

Publication Number: M1953-04 Date: 1997

Author: Satterly J., Hogg N.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Geological series, Precambrian geology of the Magusi River area, Cochrane and Timiskaming districts

Publication Number: P2434 Scale: 1:63,360    Date: 1982

Author: Jensen L.S.

Publisher Name: Ontario Geological Survey

Location:

Map - Geological series, Quaternary geology of the Magusi River area, Cochrane and Timiskaming districts

Publication Number: P2483 Scale: 1:50,000    Date: 1982

Author: Baker C.L., Steele K.G., Seaman A.A.

Publisher Name: Ontario Geological Survey

Location:

Map - Precambrian Geology of the Highway 101 Area, East of Matheson, Ontario

Publication Number: M2676 Scale: 1:50,000    Date: 2003

Author: Berger B.R., Luinstra B., Ropchan J.C.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geological Synthesis of the Highway 101 Area, East of Matheson, Ontario

Publication Number: OFR6091 Date: 2003

Author: Berger B.R.

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