Ontario Geological Survey
Permanent Link to this Record:
MDI42F05SW00013
| Record Name(s) | Olson Road (North) Copper Occurrence - 9999 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1996-Dec-31 |
| Date Last Modified | 2022-May-09 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Secondary Commodities: Sulphur/Pyrite
Township or Area: Everest Lake Area
Latitude: 49° 19' 10.61" Longitude: -85° 48' 13.89"
UTM Zone: 16 Easting: 586926.771 Northing: 5463674.75 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42F05SW
Point Location Description: Unknown
Location Method: Data Compilation
Access Description: The Olson Road (North) copper occurrence is located approximately 22.5 km north of Manitouwadge and 7 km northeast of Everest Lake. The occurrence is accessible via motor vehicle. From Manitouwadge, travel east and then north along the Camp 70 logging road for approximately 31.5 km to the Jim Lake road. Proceed north along the Jim Lake road for approximately 7.85 km to the Husak road. Proceed west along the Husak road for approximately 13.8 km to the Olson road. Proceed north along the Olson road for approximately 4.5 km. Copper-bearing sulphide mineralization is reported to occur adjacent to the road along its east side (Coates 1966, Map P.362; Coates 1968, Map 2141; Williams and Breaks 1990, Open File Map 142).
1954-1964: The area surrounding and including the occurrence was staked several times by various parties, but no work was recorded for assessment credit. 1965: Geological mapping; M.E. Coates (ODM). 1978-1979: Regional lake sediment and water geochemical survey; GSC-MNR. Samples collected from lakes in the vicinity of the occurrence contained slightly anomalous amounts of base metals. 1989: Geological mapping; H. Williams and F. Breaks (OGS). Dighem airborne geophysical survey (EM, MAG, VLF-EM); Noranda Exploration Company, Limited and Noranda Minerals Inc. (Geco Division). 1991-1992: Reconnaissance till sampling survey; GSC. Samples collected in the vicinity of the occurrence contained slightly anomalous amounts of Au and base metals.
Province: Superior
Subprovince: Quetico
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Granulite
Dec 07, 2005 (D McKay) - The Olson Road (North) copper occurrence is located within the Quetico Subprovince approximately 4.5 km north of the Quetico-Wawa subprovince boundary (Williams and Breaks 1990). The rocks in the vicinity of the occurrence are moderately to locally strongly foliated (075 degrees/85 degrees S). Mineral assemblages indicate the rocks have experienced granulite facies-grade regional metamorphism (Williams and Breaks 1990). The occurrence is located along a northwest-trending fault (Coates 1968, Map 2141; Williams and Breaks 1990). An east-trending, regional scale, linear topographic feature referred to as the Little Nama Lake lineament (Coates 1968, Map 2141) is located approximately 2 km to the south. The occurrence is underlain primarily by an east-trending sequence of migmatitic paragneiss (Coates 1968, Map 2141; Williams and Breaks 1990). Intrusion of granitic, tonalitic and pegmatitic material into the paragneiss has resulted in the development of localized lit-par-lit structures. Refolded minor folds in the paragneiss indicate multiple episodes of deformation have occurred. The paragneiss is generally light tan- to rusty-weathering, speckled black and white, medium- to coarse-grained, moderately foliated, non-magnetic and crudely laminated. The paragneiss is composed primarily of biotite, quartz and feldspar. Coarse-grained porphyroblasts of purple garnet and rare, dark brown orthopyroxene occur locally. A narrow, northwest-trending diabase dike has intruded the paragneiss in the vicinity of the occurrence. Copper-bearing sulphide mineralization is reported to occur along the contact between this diabase dike and the surrounding paragneiss.
| Rock Type | Rank | Composition | Texture | Relationship | Paragneiss | 1 | Opx-Gnt-Bio-Q-Fel Paragneiss | Migmatitic | Host |
|---|---|---|---|---|
| Diabase | 2 | Diabase Dike | Near |
Dec 07, 2005 (D McKay) - A narrow, northwest-trending diabase dike has intruded the paragneiss in the vicinity of the occurrence. The paragneiss is generally light tan- to rusty-weathering, speckled black and white, medium- to coarse-grained, moderately foliated, non-magnetic and crudely laminated. The paragneiss is composed primarily of biotite, quartz and feldspar. Coarse-grained porphyroblasts of purple garnet and rare, dark brown orthopyroxene occur locally.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Calcite | Economic | Gangue | ||||
| Quartz | Alteration | Hydrothermal | 1 | ||||
| Calcite | Alteration | Hydrothermal | 2 |
Dec 07, 2005 (D McKay) - In his report for the area, Coates (1968, p.16) stated: Post-diabase faulting along the margins of dikes with a northwest-southeast trend caused some brecciation of the dikes and the adjoining country rocks. These openings have subsequently become filled with quartz, carbonate, and some chalcopyrite. Other sulphides are notably absent from showings of this type. Occurrences of this nature were seen at Taradale, Rockbound Lake, Beavercross Lake, north of Pout Lake, east of Little Nama Lake, near Straight Lake, and at several other locations. Other copper occurrences, spatially related to northwesterly-trending lineaments intruded by diabase, occur widely distributed throughout the Quetico Subprovince north of Manitouwadge (Coates 1968, 1970). To date, the economic potential of these occurrences has been limited by their narrow widths and the erratic distribution and low grade of the mineralized zones.
| Rank | Classification |
|---|---|
| 1 | Hydrothermal |
| 2 | Igneous Contact |
| Rank | Characteristic |
|---|---|
| 2 | Breccia |
| 1 | Disseminated |
Map - Stevens-Kagiano Lake area, District of Thunder Bay
Publication Number: P0362 Scale: 1:63,360 Date: 1997
Author: Coates M.E.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Mineral Occurrences in the Manitouwadge Area, Volumes 1, 2 and 3
Publication Number: OFR5906 Date: 1994
Author: McKay D.B.
Publisher Name: Ontario Geological Survey
Location:
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Map - Stevens sheet, Thunder Bay District
Publication Number: M2141 Scale: 1:63,360 Date: 1967
Author: Coates M.E.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Manitouwadge sheet, districts of Thunder Bay and Algoma, geological compilation series
Publication Number: P0494 Scale: 1:126,720 Date: 1997
Author: Milne V.G.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of Stevens-Kagiano Lake area, District of Thunder Bay
Publication Number: R068 Date: 1968
Author: Coates M.E.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geology of the Manitouwadge-Hornepayne area
Publication Number: OFM0142 Scale: 1:50,000 Date: 1990
Author: Williams H.R., Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
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