Ontario Geological Survey
Permanent Link to this Record:
MDI42D15SE00015
| Record Name(s) | Goldbar Lake Prospect - 1979, Tomcar Property - 1953, Little Pic Copper Mine - 1875, Pitkanen-Opas Option - 1965 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1979-Dec-24 |
| Date Last Modified | 2022-May-09 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Zinc
Secondary Commodities: Silver, Gold
Township or Area: Walsh
Latitude: 48° 49' 52.95" Longitude: -86° 44' 3.37"
UTM Zone: 16 Easting: 519501.69 Northing: 5408744.73 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D15SE, 42D15SW
Point Location Description: Pit
Location Method: Field Visit
Access Description: The showings are located in Walsh Township just east of the eastern arm of Goldbar Lake about 64 km east of Schreiber (claim TB 535424, claim map G-636, Walsh Township). Access may be gained by air to Goldbar Lake from which it is only 60 m east to the showings. An old road, passable only by foot, extends from Highway 17 near McKellar Creek, 2.5 km east of Ripple and heads northwest a distance of 2.5 km to the old pits.
1875: Unspecified surface exploration, extraction of a 4.5 ton surface bulk sample, road construction; P. McKellar. The Little Pic Copper Mine was discovered at this time. The bulk sample is reported to have returned encouraging assays. Although construction of a mill was recommended, no record of such could be found. 1952: Grab and Channel sampling; T.J. Cook and A. Crout. 1953: Unspecified surface work; Tomcar Mines Limited. 1955: Geological mapping, prospecting, unspecified surface work and diamond drilling (28 holes totalling 3453 m); Marlhill Mines Limited. 1965-1968: Diamond drilling (5 holes totalling 135.5 m); R.W. Pitkanen and E.S. Opas. 1969: Trenching; R.W. Pitkanen and E.S. Opas. 1973-1980: The occurrence was staked several times by various parties but no work was recorded. 1981: Ground geophysical survey (MAG, EM), geological mapping and lithogeochemical sampling; Canadian Nickel Company Limited. 1983: Property examination and lithogeochemical sampling; SH Resident Geologist staff (OGS). 1984: Geological compilation; J. Ternowsky. Property examination and lithogeochemical sampling; SH Resident Geologist staff (OGS). 1986: Ground geophysical survey (UTEM); Tri-Minex/Metallgesellschaft. Several weak conductors were identified. 1988: Geological mapping, geophysical and geochemical surveys; Noranda Exploration Company Ltd., Cumberland Resources Ltd. and Redfern Resources Ltd. 1989: Prospecting, geological mapping, sampling and diamond drilling (3 holes totalling 812 m); Noranda Exploration Company Limited., Cumberland Resources Ltd. and Redfern Resources Ltd. Property examination and lithogeochemical sampling; SH Resident Geologist staff (OGS). 1990: Diamond drilling (8 holes totalling 2309.5 m); Noranda Exploration Company Ltd.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.594 | 42D15NE0062 | 42D15NE0062 |
| 63A.277 | 42D15NE0063 | 42D15NE0063 |
| 18 | 42D15NE0071 | 42D15NE0071 |
| 2.13168 | 42D15NE0012 | 42D15NE0012 |
| 2.12092 | 42D15SE8278 | 42D15SE8278 |
| 32 | 42D15NE0018 | 42D15NE0018 |
| 2.5099 | 42D15NE0045 | 42D15NE0045 |
| 2.4356 | 42D15NE0046 | 42D15NE0046 |
| 2.6931 | 42D15NE0032 | 42D15NE0032 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Dec 07, 2005 (D McKay) - The geology of the area is summarized by Hinzer (1984, assessment file report): The claim group lies within the eastern end of the Schreiber greenstone belt and is underlain by basic to felsic metavolcanic tuffs and metasediments. The rocks are strongly sheared in an east-west direction and contain numerous north-south faults. The greenstone belt appears to be a steeply north to 'vertically dipping, south' facing homoclinal sequence. The Foxtrap-Glorylake batholith (1 km to the north) has strongly influenced the local structure and metamorphic grade. The stratigraphy is younging to the south, with sediments containing local iron formations capping a westward thickening volcanic pile. Numerous graphitic ferruginous chert and sulphide iron formation allow good stratigraphic correlation. Numerous north bearing faults can be projected from both geological and geophysical data, many other minor faults are also indicated. Rapid lateral facies changes from east to west especially around Goldbar Lake are in part due to major north south faulting in this area. East of Goldbar Lake, a single mafic to felsic to sedimentary cycle is present on the property. West of Goldbar Lake two felsic-sedimentary contact is interbedded with several iron formation zones. Folding is not readily observed. A major fold axis has been postulated passing through the north end of Goldbar Lake centred on the quartz-sericite schists and several amphibolite zones. Descriptions by Grant (1968), Perry (1981) and Hinzer (1984)(all assessment file reports) indicate the mineralization in the area occurs along a sheared contact zone between amphibolite (gabbro ?) on the north and dacitic tuff, altered to chlorite-sericite-schist, on the south.
| Rock Type | Rank | Composition | Texture | Relationship | Amphibolite | 1 | Gabbroic | Sheared Contact | Host |
|---|---|---|---|---|
| Intermediate Schist | 2 | Dacitic Tuff ( Q-Ser Schist) | Schistose, Sheared Contact | Host |
| Vein | 3 | Quartz Stringers | Host |
Dec 07, 2005 (D McKay) - The mineralization occurs along a sheared contact zone between amphibolite (gabbro ?) on the north and dacitic tuff, altered to chlorite-sericite-schist, on the south.
| 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 | Sphalerite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Chlorite | Alteration | Hydrothermal | 1 | Unknown | Disseminated | ||
| Sericite | Alteration | Hydrothermal | 2 | Unknown | Disseminated | ||
| Quartz | Alteration | Hydrothermal | 3 | Unknown | Veins |
Dec 07, 2005 (D McKay) - Pyrite, chalcopyrite and sphalerite occur in a 3-5 foot (0.9-1.5 m) wide contact zone between clastic tuff and amphibolite (Hinzer 1984, assessment file report). DeGagne (1989, assessment file report) described the Prairie West, Marlhill and Goldbar Lake (Tomcar) showings as occurring along the same stratigraphic horizon. All the showings consist of quartz stringers hosting pyrite, chalcopyrite and sphalerite mineralization within quartz-sericite schist. McKellar (1877?) reports that assay samples gave up to 25.25% Cu while a 4? ton (4.08 tonne) bulk sampling (unconcentrated) gave 10.125% Cu, 0.07 ounce per ton Au and 1.77 ounces per ton Ag. (Resident Geologist's Files, Schreiber-Hemlo District, Thunder Bay) A channel sample taken in 1952 by Tomcar Mines Ltd. returned 5% copper and 0.12 ounce per ton ton gold (Page 1952). (Resident Geologist's Files, Schreiber-Hemlo District, Thunder Bay) The best assay from diamond drilling by Conwest in 1968 returned 4.73% Cu, 0.98% Zn, 2.12 ounces per ton Ag and 0.02 ounce per ton Au across 3.6 feet drilled on the Tomcar (Goldbar Lake) showing (DeGagne 1989, assessment file report). Drilling by Noranda Exploration Company Ltd. in 1990 under the Goldbar Lake (Tomcar) Cu-Zn occurrence intersected 0.12% Zn across 27 m and 0.92% Cu and 0.21% Zn across 2.1 m, hosted by chlorite-biotite schists. Downhole pulse detected an off hole anomaly (Thomson 1990, assessment file report). Hole MH-90-11 intersected approximately 3% sphalerite across 5.6 m in quartz-carbonate schist (Thomson 1990). Grab samples collected from the occurrence in 1981 by the Canadian Nickel Co. Ltd. returned assay values of up to 2.5% Cu, 1.1% Zn, 47 ppm Ag and 140 ppm Au. Grab samples collected from the occurrence in 1983 by SH Resident Geologist staff returned assay values of up to 4.52% Cu, 0.52% Zn and 0.01 ounce/ton Au.
Dec 07, 2005 (D McKay) - The mineralization occurs along a sheared contact zone between amphibolite (gabbro ?) on the north and dacitic tuff, altered to chlorite-sericite-schist, on the south. DeGagne (1989) defined a wide zone of alteration including sodium depletion which trends east-west across the property. The zone is confined to the northern volcanic sequence and extends from just east of Goldbar lake to the western boundary of the property (Prairie West).
| Rank | Classification |
|---|---|
| 1 | VMS Base Metal |
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:
MonoMap - Geology of the Jackfish-Middleton area, District of Thunder Bay
Publication Number: R050 Page: 35 Date: 1997
Author: Walker J.W.R.
Publisher Name: Ontario Dept. of Mines
Location:
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Map - Jackfish-Middleton area, Thunder Bay District
Publication Number: M2107 Date: 1967
Author: Walker J.W.R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 360-307 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Book - The McKellar Story: McKellar Pioneers in Lake Superior’s Mineral Country, 1839-1929
Publication Number: book Date: 1981
Author: Henderson, E.M.
Publisher Name: McKellar Story Publication Committee
Location:
Map - Schreiber sheet, District of Thunder Bay, geological compilation series
Publication Number: P0360 Scale: 1:126,720 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Page: 562-570 Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
Location:
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