Ontario Geological Survey
Permanent Link to this Record:
MDI42E04NE00007
| Record Name(s) | Kabamichigama Lake Occurrence - 1967, Kabamichigama Lake - 1991, N. Cox - 1991, Anglo American - 1991, Anglo American Nickel Corporation Ltd. - 1967, N. Cox Occurrence - 1967 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Apr-01 |
| Date Last Modified | 2022-May-06 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Township or Area: Kabamichigama Lake Area
Latitude: 49° 14' 2.08" Longitude: -87° 40' 10.64"
UTM Zone: 16 Easting: 451251.995 Northing: 5453674.806 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42E04NE
Point Location Description: 8 diamond drill holes.
Location Method: Conversion from MDI
Access Description: The occurrence is located 40 km northeast along the Little Bear Quarry Road, and 1.2 km north of Kabamichigama Lake on both the north and south sides of the Little Bear Quarry Road (claim map G-58). The Little Bear Quarry Road (Camp 81 Road) is located about 21 km east of Nipigon.
1967: The occurrence was initially discovered during road construction. The property was staked by Nolan Cox. Subsequent surface exploration occurred in the area of the discovery. 1968: Magnetometer and electromagnetic surveys were conducted by Anglo American Nickel Mining Corporation Ltd. As well, 8 diamond drill holes totalling 1029 m were drilled. 1988: Area was staked by J. Dampier.
Province: Superior
Geological Age: Archean
Dec 07, 2005 (B Nelson) - The property is underlain by massive biotite granite and migmatite cut by a diabase dyke, itself brecciated and emplaced in the Eastborne Lake Hall Fault which crosses the property. The diabase dyke is about 5 ft (1.5 m) wide and strikes N60 degrees W. Sulphide mineralization consisting of pyrite, chalcopyrite, and minor bornite is associated with the diabase dyke which is fractured and cemented with quartz. The fracture zone dips steeply to the northeast. The chalcopyrite is in irregular patches associated with both diabase and quartz but is more common in the former. The occurrence was initially discovered during road construction work in 1967 (Northern Miner 1968a, p. 551) and subsequent surface exploration in that year revealed mineralized parts of the breccia zone over a strike length of 800 ft (240 m) with widths of 8 - 17 ft (2.4 - 5.2 m) (Northern Miner, 1968a, p. 541). Magnetic and electromagnetic surveys were carried out in 1968 in the property which was optioned to Anglo American Nickel Mining Corporation Limited in 1968 (Northern Miner, 1968a, p. 541). The magnetic survey indicated two anomalies 900 ft (274 m) and 600 ft (182 m) long, respectively, and the electromagnetic survey outlined an anomalous zone for a strike length of 4000 ft (1220 m), (Northern Miner, 1968b, p. 591). Diamond drilling was carried out in 1968 by the same company on claim TB 133730. One hole intersected 87 ft (26.5 m) of copper mineralization averaging 1 % Cu over 19 ft (5.82 m), (Northern Miner, 1968c, p. 657); a second hole intersected 57 ft (17.3 m) of copper mineralization grading 0.54 % Cu (Northern Miner, 1968d, p. 740). The logs of these holes are filed in the Resident Geologist's Files, Thunder Bay. Massive gneissic granitic rocks are cut by a fracture zone, about 38 m wide, which strikes N50-55 degrees and dips steeply east. The fracture zone consists of a mass of quartz veins cementing angular fragments of intermediate to mafic material.
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 | Biotite Granite | Gneissic, Cut By Fracture Zone | Host |
|---|---|---|---|---|
| Diatexite Migmatite | 2 | Brecciated | Host | |
| Diabase | 3 | Diabase | Brecciated | Near |
| Vein | 4 | Quartz | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Bornite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Quartz | Alteration | Hydrothermal | 1 | Veins |
Dec 07, 2005 (B Nelson) - Sulphide mineralization includes abundant py, with a lesser amount of cp and a minor amount of bn. Cp occurs in irregular, discrete patches, closely associated within a fractured or brecciated zone within massive granite and migmatite. Mineralized portions of the breccia zone have been traced on surface for a strike length of 244 m and over widths of 2.14 m. The footwall zone shows an average of 1.07% Cu across a width of 18.2 feet for a strike length of 600 feet. 'Hole No. 1 intersected 85.5 feet from 260 345 ft. grading 0.60% copper, including a 28.5 ft. section from 265-293.5 assaying 1.06% copper. The second hole, collared 300 ft. northwest of No. 1, intersected 57 ft. from 286 343 ft. grading 0.54 % copper. This includes an 18 ft. section of 0.88% copper, and an 11 ft. section of 0.84% copper.' (The Northern Miner, August 15, 1968). Hole No. 3 intersected 14 ft. of 2.02% Cu. (The Northern Miner, Sept. 15, 1968) (Resident Geologist's Files, Schreiber Hemlo District, Thunder Bay).
Date: Feb 28, 1997
Geologist: B Nelson
Notes: Resident Geologist personnel visited the occurrence August 29, 1984. Sampling by Resident Geologist personnel (9 samples) returned values of <0.01 oz/ton Au for all 9, <0.10 oz/ton Ag for all 9, and Cu values ranging from nil to 9600 ppm Cu.
Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District
Publication Number: M2232 Scale: 1:253,440 Date: 1973
Author: Carter M.W., McIlwaine W.H., Wisbey P.A.
Publisher Name: Ontario Division of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 329-330 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Dickison Lake, Thunder Bay District
Publication Number: M2293 Scale: 1:63,360 Date: 1974
Author: Carter M.W.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of the Dickison Lake area, District of Thunder Bay
Publication Number: R123 Page: 21-22 Date: 1975
Author: Carter M.W.
Publisher Name: Ontario Division of Mines
Location:
Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
Location:
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files, Thunder Bay office
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
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