Ontario Geological Survey
Permanent Link to this Record:
MDI42D14NW00034
| Record Name(s) | Cooper - 1917, Tb3382 - 1980, Roy Cooper's Claim No. 1 - 1917 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1980-Jan-10 |
| Date Last Modified | 2022-May-09 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Molybdenum
Secondary Commodities: Lead
Township or Area: Pays Plat Lake Area
Latitude: 48° 59' 27.49" Longitude: -87° 17' 4.41"
UTM Zone: 16 Easting: 479183 Northing: 5426491 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D14SW
Point Location Description: Trenches and strips.
Location Method: Conversion from MDI
Access Description: The occurrence is located approximately 503 m west of the west arm of Big Duck Lake, about 20.1 km north of Schreiber (claims TB654025 and 646720, claim map G-606, Pays Plat Lake). Access may be gained by float/ski plane to Big Duck Lake or by using a bush trail that extends from the Winston Lake Road east to several showings near Big Duck Lake. The Winston Lake road extends from Highway 17 at a point 8 km west of Schreiber.
1917: The occurrence was staked by R. Cooper as TB 3382 ('Roy Cooper's Claim #1'). 1918: One-half interest was transferred to W. Longworth. 1923: The claim lapsed and was restaked by W.C. Tonge. 1923-30: Unspecified work was carried out, probably surface trenching and stripping on TB4243. 1935-38: TB20079 was staked by A.L. Kemp. 1951-54: TB42294 was staked by L.M. Duggan. 1954: TB51482 was staked by A. Anglin. 1955: All interest was transferred to Stratmat Ltd. which developed the nearby Estell showings. Trenching and stripping were carried out. 1960: The claims lapsed and were restaked by E.J. Blanchette who transferred all interest to A.B. Monteith. 1961: Monteith transferred all interest to KRNO Mines Ltd. (TB97568). The claims were cancelled then reinstated. 1962: The claims were cancelled. 1982: Claims TB654025 and 646720 were staked by C. Darveau and R. Szyda respectively, and all interest was transferred to Corporation Falconbridge Copper. 1983-84: Falconbridge carried out geological mapping and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.7632 | 42E03SE8252 | 42E03SE8252 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Dec 07, 2005 (B Nelson) - The occurrence is classed as a 'lode gold' and 'calc-alkalic porphyry' deposit. The quartz vein is well-defined and sugary textured, striking N20-25 degrees W. At one point, near its north end, the vein lies along the contact between quartz porphyry on the east and hornblende schist on the west. It is exposed in outcrops, pits and trenches intermittently over a strike length of 250 feet and it averages about 6 feet in horizontal width. The dip of the vein is not known but appears to be vertical where the vein is exposed in the northernmost pit.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Sugary | Host |
|---|---|---|---|---|
| Quartz Porphyry | 2 | Quartz | Host | |
| Schist-Unsubdivided | 3 | Hornblende | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Molybdenite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Quartz | Alteration | Silicification | 1 | Unknown | Veins |
Dec 07, 2005 (B Nelson) - The vein-quartz is mineralized with abundant fine-grained pyrite and, in places, a little molybdenite. A grab sample from the vein is reported to have assayed 0.14 oz/ton Au. Three channel samples across the vein, however, were found by the Provincial Assay Laboratory to contain only traces of gold. One of these samples, 6.5 feet long, from the northernmost pit, assayed 0.01 oz/ton Au. Wells (1984) reported that: 'Grab samples of...'high-grade' material are anomalous in gold and molybdenum, returning values of 312 ppb Au, 1092 ppm Mo and 764 ppb Au.
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: 31 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 - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 300 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
File - Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Map - Schreiber-Duck Lake area, District of Thunder Bay
Publication Number: ARM30A Scale: 1:63,360 Date: 1998
Author: Hopkins P.E., Tanton T.L.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Page: 172-174 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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