Ontario Geological Survey
Permanent Link to this Record:
MDI42D14NW00036
| Record Name(s) | Cleaver Lake - 1951, Creek Zone - 1979, Tb42624 - 1980, L.C. Anderson Copper Group - 1951 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1980-Jan-10 |
| Date Last Modified | 2022-May-10 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Township or Area: Pays Plat Lake Area
Latitude: 48° 58' 38.06" Longitude: -87° 22' 42.16"
UTM Zone: 16 Easting: 472311.8 Northing: 5424994.62 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D14NW
Point Location Description: Diamond drill holes
Location Method: Conversion from MDI
Access Description: The occurrences are located along the creek which flows into the north end of Cleaver Lake, approximately 21 km northwest of Schreiber (claim TB 386778, claim map G-606, Pays Plat Lake). Access may be gained by air to Cleaver Lake or by the Winston Lake Mine road which extends from Highway 17 to Cleaver Lake at a point 8 km west of Schreiber.
1951: The original showing was discovered by J. Gallant. TB42624 was staked by A. Dunning and all interest transferred to L.C. Anderson-Andowan Mines Ltd. A preliminary exploration report was submitted by M.W. Bartley. 1952: Two diamond drill holes totalling 44.5 m were drilled on TB42624. 1953: One hole, 120.4 m in length, was drilled by L.C. Anderson. Three holes, totalling 563.3 m, were drilled by Zenmac Metal Mines Ltd on claims TB42155, 42159 (south of original showings). The claims were later patented. 1955: P.S. Broadhurst restaked the original showings as TB75415. All interest was transferred to Zenmac Metal Mines Limited. 1956: A geophysical survey was conducted. 1964: The occurrence was restaked by J. Halonen. 1965: All interest was transferred to Zenmac Metal Mines Limited. 1966-67: Five diamond drill holes, totalling 352.8 m were drilled on TB111030 and 111031. 1979: The occurrence was restaked by F. Nabigon, and all interest transferred to Falconbridge Copper Ltd. 1980: Various geological, geophysical and geochemical surveys, diamond drilling and other exploration activities were carried out in the immediate area due to development of the Winston Lake Mine project. 2008-10: Orebot Inc. carried out geological mapping, ground-checking geophysical conductors, and soil sampling. 2011-12: Silvore Fox carried out a VTEM survey and sampling. 2014: Golden Share Mining Corp. carried out geological mapping and prospecting.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 10 | 42D14NW0043 | 42D14NW0043 |
| 11 | 42D14NW0048 | 42D14NW0048 |
| 2.45096 | 20000006157 | 20000006157 |
| 2.57704 | 20000013841 | 20000013841 |
| 2.54796 | 20000008045 | 20000008045 |
| 2.53573 | 20000007517 | 20000007517 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Dec 07, 2005 (B Nelson) - The prospect is classed as a VMS deposit. In the vicinity of the showings the rocks are mainly schists and granitic gneisses, which strike north and dip 40 to 45E. These schists and gneisses have been intruded by bodies of syenite porphyry. Several exposures showing chalcopyrite mineralization have been observed. One exposure consists of coarsely crystalline chalcopyrite in narrow seams that parallel the banding in a gneissic rock; another consists of disseminated chalcopyrite in a biotite schist. The showing tested by diamond drilling, consists of disseminated chalcopyrite within syenite porphyry, and has been traced in a north south direction for 500 feet. Pye (1964, pp.27 29) further described the Cleaver Lake occurrence: The Cleaver Lake deposit was staked in 1951 by J. Gallant, who reported a discovery of chalcopyrite in schist along the west bank of the creek flowing into Cleaver Lake. This deposit was found to dip about 45 degreesE and to strike S.20 degreesE toward the lake. In 1952, Gallant's claims were acquired by Zenmac Metal Mines Limited; the following year, three drill holes, aggregating 1848 feet were bored westerly, under the lake from the east shore. The first hole was collared at the north boundary of claim T.B. 42155; the second 485 feet south of the first; the third, at the south boundary of the claim, about 900 feet south of the second hole. Each hole intersected feldspar porphyry, locally schistose and highly sericitized, in contact with the large mass of diorite and gabbro on the east.
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 | Gneissic | Near |
|---|---|---|---|---|
| Porphyry-unsubdivided | 2 | Syenite | Host | |
| Gneiss-Unsubdivided | 3 | Host | ||
| Schist-Unsubdivided | 4 | Host | ||
| Feldspar Porphyry | 5 | Feldspar | Schistose | Host |
| Diorite | 6 | Diorite | Near | |
| Gabbro | 7 | Gabbro | Near | |
| Felsic lava flow-unsubdivided | 8 | Rhyolite | Host |
| 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 | ||||
| Anthophyllite | Alteration | Hydrothermal | 1 | Unknown | Disseminated | ||
| Biotite | Alteration | Biotitic | 2 | Unknown | Disseminated | ||
| Cordierite | Alteration | Hydrothermal | 3 | Unknown | Disseminated | ||
| Epidote | Alteration | Hydrothermal | 4 | Unknown | Disseminated | ||
| Garnet | Alteration | Hydrothermal | 5 | Unknown | Disseminated | ||
| Malachite | Alteration | Supergene | 6 | Unknown | Disseminated |
Dec 07, 2005 (B Nelson) - In the first hole (Zenmac drill program, 1952), about 50 feet from the contact, the porphyry was found to be mineralized with a little pyrite, pyrrhotite, and chalcopyrite over a width of about 60 feet. In the second hole, drilled S.79 degreesW at 50 degrees, two copper bearing sections were cut. One section from 110.7 to 111.1 feet in the hole, was found to contain 2.36 percent copper; The other section, 126.0 to 128.0 feet, contained 0.95 percent copper. These copper bearing sections were found in the porphyry 92 feet and 107 feet from the contact, respectively. No significant mineralization was observed in the core from the third drill hole.
May 17, 2019 (Therese Pettigrew) - This showing appears to be related to Silvore Fox Minerals’ C16 VTEM anomaly (Assessment file 20000008045). The Cleaver Lake showing occurs along Selim Creek at the base of the Winston Lake interval where it is in contact with clotted rhyolite of the Main Felsic Unit, approximately 200 m west of the surface expression of the Winston Lake Deposit. It consists of a gossan containing pyrite and chalcopyrite hosted by felsic rocks that have been partially altered to biotite-cordierite-anthophyllite (Smyk and Schneiders, 1995). Samples collected in 2012 returned assays up to 0.34% Cu (Assessment file 20000007517).
Dec 07, 2005 (B Nelson) - Mafic to felsic volcanic rocks display patchy to pervasive hydrothermal alteration including anthophyllite, biotite, cordierite, epidote and garnet. The rocks display a gossanous appearance and malachite staining is observed along fractures and foliation.
Date: Feb 11, 1997
Geologist: B Nelson
Notes: Resident Geologist personnel visited the occurrence in August of 1983, May of 1986, and August of 1994.
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 - Mineral deposits of the Big Duck Lake area, District of Thunder Bay
Publication Number: R027 Page: 27-29 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Big Duck Lake area, District of Thunder Bay
Publication Number: M2023 Scale: 1:15,840 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 322 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - The Geological Setting of the Winston Lake Massive Sulphide Deposit; In: Mineral Deposits in the western Superior Province, Ontario [Field Trip 9]; Geological Survey of Canada, Open File 2164
Publication Number: GSC OF 2164 Page: 58-73 Date: 1991
Author: Severin, P W A; Balint, F; Sim, R
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/132356
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files, Thunder Bay office
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Page: 185-187 Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
Location:
Book - Geology of the Schreiber Greenstone Assemblage and its Gold and Base Metal Mineralization; In: ILSG 41st Annual Meeting Proceedings Volume 41, Part 2C – Field Trip Guidebook
Publication Number: ILSG 41 Date: 1995
Author: Smyk, M.C. and Schnieders, B.R.
Publisher Name: Institute of Lake Superior Geology
Location:
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