Ontario Geological Survey
Permanent Link to this Record:
MDI42A08NW00104
| Record Name(s) | Chartrand - 1983, Gunnar Mines Ltd. - 1954, Gunnex Deposit - 1980, Hollinger Consolidated Gold Mines - 1940, Gunnar Gold Mines Ltd. - 1947, Stroud Resources - 1986, Chevron Canada Resources - 1986 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1983-Dec-14 |
| Date Last Modified | 2023-Apr-14 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Silver, Copper
Township or Area: Hislop, Hislop
Latitude: 48° 29' 14.31" Longitude: -80° 18' 37.52"
UTM Zone: 17 Easting: 550953.07 Northing: 5370694.32 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 42A08NW
Point Location Description: open pit & underground workings
Location Method: Data Compilation
Access Description: A point 4.09 km north and 2.64 km west of the southeast corner of Hislop Township. The Gunnex deposit is about 2.9 km northwest of the village of Holtyre, in the southwest quarter of the north half of lot 3, concession III, Hislop Township. Access to within several tens of metres of the (overburden covered) deposit area is provided by north trending all weather Hislop Road 2, which lies along the common boundary of lots 3 and 4.
1940- 1941: Hollinger Consolidated Gold Mines Ltd.- DD northwest of Ross Mine 1947-1949: Gunnar Gold Mines:DD-7-5500 ft. 1974-81: Gunnex Ltd. - DD-32-8427 ft. 1980- 1981: By 1980, Gunnex had established '...tonnage and grade of 'possible' ore within a strike length of 150 ? of the gold zone, drilled at 50 foot and then 25 foot centres to a maximum depth of 300' 1981:Pancontinental Mining (Canada) Ltd. - completed magnetic, IP and resistivity electromagnetic, and lithogeochemical surveys, RC-drilling DD-14-1714 m. 1986- 1988: Chevron Canada Resources Ltd. (operator) formed a joint venture with Stroud Resources: ground geophysics; geochemical surveys, overburden stripping, DD-33.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| KL1064/14 | 42A08NW0081 | 42A08NW0081 |
| 63.5430/ OM86-6-JV- 223 | 42A08NW0031 | 42A08NW0031 |
| 63.5342/ OM87-4-JV-349 | 42A09SW0255 | 42A09SW0255 |
| 63.3267 | 42A08NW0075 | 42A08NW0075 |
| 63.4999/OM86-6-JV-202 | 42A08NW0040 | 42A08NW0040 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Stoughton-Roquemaure
Geological Age: Archean
Metamorphism Grade: Greenschist
Apr 13, 2016 (C Salo) - Geological mapping indicates that bedrock in the deposit area is almost entirely glacial drift covered. Bedrock geology and structure in the area are complex and not well understood. Bedrock is interpreted to consist mainly of weakly metamorphosed (greenschist or lower metamorphic facies except marginal to large felsic intrusive bodies, where amphibolite grade contact metamorphic aureoles may be developed) subaqueously deposited ultramafic to felsic volcanic, pyroclastic, and chemical and clastic interflow sedimentary rocks. In places these supracrustal rocks have been intruded by albite syenitic bodies of unspecified size and geometry, aplite dikes, and narrow (generally tens of metres in width) diabase dikes of the (Proterozoic according to Heaman 1989) Matachewan swarm which usually strike north. Bedrock stratigraphy is reported to strike southeast, to dip steeply southwest, and to face southwest, but Prest has postulated the presence in the area of isoclinal folding, suggesting that semiregional scale descriptions of the area's basement structure should be regarded with caution. Bedrock hosting the Gunnex deposit is interpreted by Johnstone and Trowell to be about 2.4 km southwest of a relatively narrow Porcupine-Destor Fault Zone (PDFZ) while Jensen interpreted the PDFZ to be much wider and closer to the deposit location than this. Bedrock hosting the deposit appears to be either: a) within a distinctive felsic marker horizon located near the top of the (Archean) Stoughton-Roquemaure Group which occurs south of the PDFZ and occupies part of the north limb.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Chert | 2 | Graphitic, Pyrite Bearing | Breccia | Host |
| Felsic lava flow-unsubdivided | 3 | Rhyolite | Near | |
| Syenite | 4 | Porphyry | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Hematite | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore | ||||
| 4 | Molybdenite | Economic | Ore | ||||
| 5 | Galena | Economic | Ore | ||||
| 6 | Specularite | Economic | Ore | ||||
| 1 | Carbonate | Economic | Gangue | ||||
| 2 | Sericite | Economic | Gangue | ||||
| 3 | Graphite | Economic | Gangue | ||||
| 4 | Albite | Economic | Gangue | ||||
| 5 | Chlorite | Economic | Gangue | ||||
| 6 | Anhydrite | Economic | Gangue | ||||
| 7 | Fuchsite | Economic | Gangue | ||||
| Sericite | Alteration | Sericitization | 1 | Medium | Disseminated | ||
| Chlorite | Alteration | Chloritic | 2 | Unknown | Network |
Apr 13, 2016 (C Salo) - Anomalous gold tenors at the Gunnex deposit are reported to be spatially associated with what Chevron Canada Resources (the Chevron Canada Resources/Stroud Resources joint venture project operator) geologists term the southeast striking Stroud Fault. Auriferous material is hosted by pyritic quartz filled breccia, quartz veins, and (predominantly) by multiple lenses of variably brecciated graphitic and disseminated cubic pyrite bearing chert, chert breccia, and banded cherty rocks which are hosted by rhyolite. The deposit is reported to strike southeast and dip 65 degrees southwest. Gold tenors at the Gunnex deposit are reported (assessment and exploration files) to vary directly with pyrite content, with pyrite contents generally ranging from 2 to 8%. The highest gold tenors are reported to be associated with chalcopyrite; free gold had not been identified at the deposit prior to 1982. The deposit contains appreciable silver, with gold:silver ratios being about 1:1. Diamond drilling suggests that at depth, the rhyolitic rocks which host the auriferous cherty material grade into albite syenite porphyry which has been fractured, hematized, and contains anhydrite veins. Apatite has been identified from the deposit area, and anomalously auriferous material is reported to be characteristically chloritic and sericitic. Drilling by Pancontinental Mining/Gunnex is reported to have delineated additional mineralization (of unspecified type) associated with an intrusive plug (also of unspecified type) (Stroud Resources Inc. Annual Report 1988, dated May 18, 1989).
Dec 07, 2005 (C Salo) - Apatite has been identified from the deposit area, and anomalously auriferous material is reported to be characteristically chloritic and sericitic.
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Creek Zone | 1989 | Unclassified | 92533 | Stroud Resources Ltd, News Release June 4, 1989 | Gold 4.819 g/t | |
| combined Creek Zone and Gunnex Deposit | 1989 | Unclassified | 684017 | Stroud Resources Ltd, News Release June 4, 1989 | Gold 0.188 oz/T | |
| Gunnex Deposit | 1974 | Unclassified | 60000 | drill indicated | Gold 0.21 oz/T |
File - Resident Geologist file KL-2179
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Map - Precambrian Geology of the Hislop Township Area
Publication Number: M2527 Scale: 1:20,000 Date: 2000
Author: Berger B.R.
Publisher Name: Ontario Geological Survey
Location:
Map - Geophysical/geochemical series, Matheson-Black River area, Hislop Township, airborne electromagnetic survey, total intensity magnetic survey, District of Cochrane
Publication Number: M80595 Scale: 1:20,000 Date: 1984
Author: Questor Surveys Ltd.
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:
Part - Geology of Hislop Township
Publication Number: ARV65-05 Page: 38 Date: 1997
Author: Prest V.K.
Publisher Name: Ontario Dept. of Mines
Location:
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:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 131 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Map - Geological series, Precambrian geology, Ramore area, northwestern part, District of Cochrane
Publication Number: P2860 Scale: 1:15,840 Date: 1985
Author: Jensen L.S.
Publisher Name: Ontario Geological Survey
Location:
Mono - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file
Publication Number: OFR5467 Page: G0068 Date: 1983
Author: Hodgson C.J.
Publisher Name: Ontario Geological Survey
Location:
Folio - Hislop Township, District of Cochrane
Publication Number: GDIF404 Date: 1997
Author: Kirkland Lake RGO
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Precambrian geology, Ramore area, districts of Cochrane and Timiskaming
Publication Number: P3131 Scale: 1:63,360 Date: 1989
Author: Jensen L.S.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, bedrock samples from the sonic drilling program 1988, Lake Abitibi-Matheson area, District of Cochrane
Publication Number: P3136 Scale: 1:100,000 Date: 1989
Author: Sutcliffe R.H., Steele K.G., Hart B.R.
Publisher Name: Ontario Geological Survey
Location:
Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area
Publication Number: OFR5735 Page: 981-989 Date: 1990
Author: Bath A.C.
Publisher Name: Ontario Geological Survey
Location:
File - Res/Reg Property Visit Report KL #341
Publication Number: PV 341 Date: 1996
Author:
Publisher Name: Ontario Geological Survey
Location: Kirkland Lake RGO
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 - Geological Compilation of the Central Abitibi Greenstone Belt: Kapuskasing Structural Zone to the Quebec Border
Publication Number: P3565 Scale: 1:250,000 Date: 2005
Author: Ayer J.A., Berger B.R., Hall L.A.F., Houlé M.G., Johns G.W., Josey S.D., Madon Z.B., Rainsford D.R.B., Trowell N.F., Vaillancourt C.
Publisher Name: Ontario Geological Survey
Location:
Article - Reconnaissance till sampling program, Matheson-Lake Abitibi area, District of Cochrane
Publication Number: MP141.081 Page: 472-477 Date: 1997
Author: Steele K.G.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geological Synthesis of the Highway 101 Area, East of Matheson, Ontario
Publication Number: OFR6091 Page: 74 Date: 2003
Author: Berger B.R.
Publisher Name: Ontario Geological Survey
Location:
Article - Geological investigations of the Destor-Porcupine deformation zone east of Matheson
Publication Number: MP146.023 Page: 136-143 Date: 1997
Author: Troop D.G.
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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