Ontario Geological Survey
Permanent Link to this Record:
MDI42A08NW00005
| Record Name(s) | Ross Mine - 1934, Brennan-David Property - 1933, Tremblay - 1940 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Past Producing Mine With Reserves or Resources |
| Date Created | 1983-Dec-14 |
| Date Last Modified | 2023-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Silver
Secondary Commodities: Copper
Township or Area: Hislop
Latitude: 48° 28' 41.14" Longitude: -80° 17' 3.22"
UTM Zone: 17 Easting: 552898 Northing: 5369688 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 42A08NW
Point Location Description: Shaft
Location Method: AMIS Site Visit
Access Description: AProceed from Hwy 572, in Holtyre turn north on Gleason Ave and proceed 1.5km to the site.
1933-1937: Hollinger Consolidated Gold Mines Ltd.: trenched, sampled, and diamond drilling, sank a 3 compartment 150 foot deep shaft, and crosscut on the 150 foot; shaft deepened to 450 ft. level; 1300 ft. lateral development; mining, UG and surface drilling. 1977: Pamour Inc. - mining; shaft deepened and underground station was cut. 1987-88:Giant Yellowknife Mines Ltd. - mining. 1989: Giant Yellowknife sells mine to Preston Electrical and Mechanical Ltd.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| KL-0759/12 | 42A08NW0085 | 42A08NW0085 |
| KL-0759/63.4213 | 42A08NW0013 | 42A08NW0013 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
Metamorphism Grade: Greenschist
Apr 14, 2016 (C Salo) - Geological mapping indicates that the Ross mine is in an area of sparse bedrock exposure near the Porcupine-Destor Fault Zone (PDFZ). North of the PDFZ weakly metamorphosed (greenschist or lower metamorphic facies) volcanic rocks of the (Archean) Stoughton-Roquemaure Group and turbiditic sedimentary rocks of the (Archean) Porcupine Group are southeast striking, steeply dipping, north facing, and occupy part of the south limb of the southeast striking and northeast plunging McCool Hill Syncline. South of the PDFZ, (weakly metamorphosed) volcanic rocks of the Stoughton-Roquemaure Group and of the younger (Archean) Kinojevis Group are southeast striking, steeply dipping, south facing, and occupy part of the north limb of the east striking and east plunging Blake River Synclinorium. Elsewhere along its length (i.e. in the Garrison-Harker-Holloway Township area) where better exposed, the PDFZ consists of a lithologically and structurally complex assemblage of fault and/or shear bounded blocks each of which may be up to many hundreds of metres in size. In addition to rocks of the Stoughton-Roquemaure and Kinojevis Groups, the blocks within the PDFZ may also consist of (weakly metamorphosed) younger (Archean) sedimentary, volcanic, and intrusive rocks. Jensen and Langford called this complex melange which characterizes the PDFZ in the eastern BRIM area the Porcupine-Destor Complex, and it is reasonable to presume that in the Hislop Township area, a similar variably lithologically and structurally complex zone occurs beneath the interpreted trace of the PDFZ as mapped by the authors cited above.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz, Quartz-Dolomite | Host |
|---|---|---|---|---|
| Breccia-unsubdivided | 2 | Near | ||
| Schist-Unsubdivided | 3 | Fe-Dolomite-Sericite | Near | |
| Lamprophyre-Unsubdivided | 4 | Near | ||
| Syenite | 5 | Intrudes |
Apr 14, 2016 (A Wilson) - The country rocks are rhyolite tuff and basalt which are intruded by syenite. The ore is found in lens-shaped and pipe-like stringer lodes and vein zones consisting of parallel quartz stringers. The veins are generally only a few inches wide and consist of quartz or quartz-dolomite veins cut by later quartz-carbonate veins.
Dec 07, 2005 (C Salo) - Rusty weathering yellow/green Fe-dolomite-sericite schist which has been brecciated and subsequently mineralized by white to grey quartz-carbonate veinlets and masses. The grey quartz-carbonate (either Fe-dolomite or calcite) vein material has been shattered and has been recemented by calcite.
| 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 | Sphalerite | Economic | Ore | ||||
| 5 | Galena | Economic | Ore | ||||
| 6 | Bornite | Economic | Ore | ||||
| 7 | Tennantite | Economic | Ore | ||||
| 8 | Argentite | Economic | Ore | ||||
| 9 | Electrum | Economic | Ore | ||||
| 10 | Cuprite | Economic | Ore | ||||
| 11 | Malachite | Economic | Ore | ||||
| 12 | Azurite | Economic | Ore | ||||
| 13 | Copper | Economic | Ore | ||||
| 14 | Silver | Economic | Ore | ||||
| 15 | Pearceite | Economic | Ore | ||||
| 16 | Proustite | Economic | Ore | ||||
| 17 | Calaverite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Sericite | Economic | Gangue | ||||
| 3 | Tourmaline | Economic | Gangue | ||||
| 4 | Carbonate | Economic | Gangue | ||||
| 5 | Calcite | Economic | Gangue | ||||
| 6 | Barite | Economic | Gangue | ||||
| Siderite | Alteration | Sericitization | 1 | Unknown | Network | ||
| Quartz | Alteration | Silicification | 2 | Unknown | Veins | ||
| Carbonate | Alteration | Carbonatization | 3 | Medium | Veins | ||
| Chlorite | Alteration | Chloritic | 4 | Medium | Disseminated | ||
| Hematite | Alteration | Hematization | 5 | Unknown | Replacement | ||
| Feldspar | Alteration | Feldspathization | 6 | Unknown | Disseminated | ||
| Anhydrite | Alteration | Chloritic | 7 | Weak | Disseminated | ||
| Pyrite | Alteration | Pyritic | 8 | Unknown | Massive | ||
| Epidote | Alteration | Epidotization | 9 | Medium | Network |
Apr 14, 2016 (C Salo) - The structural style and ore zone configuration at the mine have been summarized by Troop as follows: The structural style in the mine area can best be summarized as strong east-west to northwest-southeast shearing, cut by later north-south brittle faulting. The shear fabric is generally a foliation parallel with the overall strike of the rocks. These shear zones can run along the margins or cores of vein systems, or act as emplacement sites for discrete narrow mineralized quartz veins. The late brittle faults are primarily dip slip,as indicated by stretching lineations, and they truncate mineralized zones and alteration styles. Lamprophyre dikes, which parallel the shears, are also truncated by brittle faults. Prest indicates that while tight fold structures are almost certainly present in the mine area, the lack of traceable units precludes their identification. The ore zones occur primarily as two distinct types 1. Roughly cylindrical to ellipsoidal, steeply west- dipping, extensive vein networks within a heavily brecciated and altered zone, somewhat like pipe- structures (e.g. 2/2B, 10, 12, and 18/18B vein systems). The networks are characterized by sub-parallel, en echelon, blue-grey quartz veinlets, termed 'A' stringers. Some of these pipes, like the 2/2B system, can be traced from surface down to the 3150-foot level, where the plan section of the zone changes from roughly circular to elongate. This reflects a change from bounding shears on the upper levels, to localization of the ore zone within shears on the lower levels. 2. Steeply dipping, narrow, white quartz (-carbonate) veins localized in the cores of northwest-trending shears and found primarily on the upper levels of the mine (e.g. 4/5, 7, 8/8A, 13, and 14 veins). These 'B' veins occur adjacent to heavily brecciated and sheared rock. The 1 vein is somewhat unusual in that it combines both 'A' stringer and 'B' vein types of mineralization.
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Ross Mine | 1989 | Unclassified | 911535 | CMH 1989-90 | Gold 4.11 g/t |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1989 | 6091276 |
Silver 1600000 Ounces Gold 995832 Ounces Copper 2500 Tonnes |
MP158 | total production 1936-1989, average grade 0.15 oz/t Au, 0.108% Cu; Gold 1 000 000 oz, Silver 1 600 000 oz, Copper 2500 tonnes |
File - Resident Geologist file KL-1168
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Map - Geological series, Quaternary geology of the Ramore area, districts of Cochrane and Timiskaming
Publication Number: P2381 Scale: 1:50,000 Date: 1980
Author: Baker C.L., Seaman A.A., Steele K.G.
Publisher Name: Ontario Geological Survey
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:
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:
Part - Geology and ore deposits of the Ramore area
Publication Number: ARV45-06.001 Page: 17-23 Date: 1998
Author: Moore E.S.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological series, preliminary results of bedrock samples from the sonic drilling, 1985, Lake Abitibi-Matheson area, District of Cochrane
Publication Number: P2986 Scale: 1:100,000 Date: 1986
Author: Jensen L.S., Steele K.G., McClenaghan M.B., Baker C.L.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of Hislop Township
Publication Number: ARV65-05 Page: 39-44 Date: 1997
Author: Prest V.K.
Publisher Name: Ontario Dept. of Mines
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:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 76 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
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 - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file
Publication Number: OFR5467 Page: G0064 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 - Geophysical/geochemical series, Matheson-Black River area, Garrison Township, airborne electromagnetic survey, total intensity magnetic survey, District of Cochrane
Publication Number: M80598 Scale: 1:20,000 Date: 1984
Author: Questor Surveys Ltd.
Publisher Name: Ontario Geological Survey
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 - Mineral occurrences, deposits, and mines of the Black River-Matheson area
Publication Number: OFR5735 Page: 1001-1027 Date: 1990
Author: Bath A.C.
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:
Book - Coexisting Precious Metals, Sulfosalts & Sulfides Mined in the Ross Gold Mine, p. 95-98
Publication Number: CMINERA 23 Date: 1985
Author: S.O. Akande
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 - 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:
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:
Article - Precambrian geology of the Black River-Matheson (BRIM) area, District of Cochrane
Publication Number: MP126.056S Page: 291-296 Date: 1997
Author: Johnstone R.M., Trowell N.F.
Publisher Name: Ontario Geological Survey
Location:
Article - Preliminary report on geology and metasomatism at the Ross Mine and vicinity, District of Cochrane
Publication Number: MP126.061S Date: 1997
Author: Troop D.G.
Publisher Name: Ontario Geological Survey
Location:
Article - Multiple orebody types and vein morphologies, Ross Mine, District of Cochrane
Publication Number: MP132.083 Page: 413-420 Date: 1997
Author: Troop D.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 - Kirkland Lake Resident Geologist's District-1991
Publication Number: MP158.014 Page: 261-284 Date: 1997
Author: Meyer G., Guindon D.L., Lovell H.L., Madon Z.B.
Publisher Name: Ontario Geological Survey
Location:
Book - Property Visit
Publication Number: PV-83 Date: 1968
Author:
Publisher Name:
Location: Kirkland Lake RGP office
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:
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