Ontario Geological Survey
Permanent Link to this Record:
MDI42D15SE00016
| Record Name(s) | Moneta Porcupine Occurrence - 1954, D.E. Smith - 1954, Middleton Copper - 1954 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1979-Dec-24 |
| Date Last Modified | 2024-Apr-30 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Secondary Commodities: Sulphur/Pyrite
Township or Area: Walsh
Latitude: 48° 47' 42.04" Longitude: -86° 39' 32.01"
UTM Zone: 16 Easting: 525051.68 Northing: 5404724.66 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D15SE
Point Location Description: Stripped area
Location Method: Field Visit
Access Description: The occurrence is located in Walsh Township (Twp 80) approximately 610 m north of Middleton on the CPR line. The occurrence lies on the western contact of the Coldwell Alkaline Complex. Access is via a foot trail which leads southeast toward Middleton from Highway 17. Approximately 800 m along the trail the occurrence is found.
Circa 1954: Unspecified surface work and diamond drilling (5 holes totalling 291 m); Moneta Porcupine Mines Limited. 1967: Obaska L Mines Ltd. conducted mag and SP ground geophysics.1983: Property examination and lithogeochemical sampling; SH Resident Geologist staff (OGS). 1986: Unspecified sampling; W. McChristie. Property examination and lithogeochemical sampling; SH Resident Geologist staff (OGS). 1987: Unspecified sampling; prospector M. Joa. 1988: Belmoral Mines Ltd. conducted ground mag and VLF surveys. 1993: D. Fairbairn contracted airborne electromagnetic and radiometric surveys. 2008: Pacific Northwest Capital conducted prospecting and airborne magnetic and electromagnetic geophysical surveys. 2015: Staked by B.D. Gionet.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.38721 | 20000003135 | 20000003135 |
| 2.2282 | 42D16SW0078 | 42D16SW0078 |
| 13 | 42D15NE0067 | 42D15NE0067 |
| 2.3224 | 42D15NE0050 | 42D15NE0050 |
| 63.2187 | 42D15NE0057 | 42D15NE0057 |
| 2.12070 | 42D15NE0017 | 42D15NE0017 |
| 2.38768 | 20000003142 | 20000003142 |
| 2.38541 | 20000003088 | 20000003088 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Dec 07, 2005 (D McKay) - Late Precambrian gabbro of the Port Coldwell alkalic complex hosts three deposits of disseminated pyrite, pyrrhotite and chalcopyrite. One deposit, striking 20 degrees and dipping vertically is exposed for a strike length of 122 m and a width of 24 m. A second occurrence, 183 m north-northeast from the first deposit is exposed over a length of 305 m and across widths up to 9 m. The second deposit strikes 290 degrees and dips vertically. The third occurrence, situated 183 m north-northeast of the second deposit, strikes north-south and dips gently east. It is exposed for a strike length of 61 m and across widths of up to 18 m.
| Rock Type | Rank | Composition | Texture | Relationship | Gabbro | 1 | Gabbro | Massive | Host |
|---|
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Magnetite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 4 | Pyrrhotite | Economic | Ore |
Dec 07, 2005 (D McKay) - Sulphide mineralization consists of pyrrhotite, chalcopyrite and pyrite hosted within a massive gabbro, although layered gabbro is present. The mineralized zones contain up to 0.88% Cu, but have a very low Pt and Pd content. The sulphide mineralization is of magmatic origin. A channel sample, taken along strike of the second deposit, averaged 0.63% copper over 13.7 m. Diamond drill holes, drilled to intersect the three deposits, indicated low copper values (Resident Geologist's Files, Schreiber-Hemlo District, Thunder Bay) Shklanka (1969) states: One intersection in diamond drill hole No. 3 returned low values in copper over a core length of 48 feet. The best material in this section, from footage 100.0 to 115.0, assayed 0.75 percent copper. Grab samples collected by Resident Geologist staff (OGS) in 1983 and 1986 returned assay results which varied from 47 ppm to 5.8% Cu, <5 to 278 ppm Ni, <1 to 13 ppb Pt and <1 to 5 ppb Pd.
| Rank | Classification |
|---|---|
| 1 | Magmatic |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
Date: Sep 04, 2015
Geologist: Therese Pettigrew
Notes: Visited the site with M. Smyk, M. Puumala, R. Cundari, and P. Hollings. Samples were collected by R. Cundari.
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:
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: 306 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geophysical series, Ashburton Bay, Thunder Bay District, Ontario, airborne magnetic, total field
Publication Number: M02147G Scale: 1:63,360 Date: 1998
Author: Geological Survey of Canada, Ontario Dept. of Mines
Publisher Name: Geological Survey of Canada, Ontario Dept. of Mines
Location:
Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Page: 571-573 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
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Thesis - Petrology & Mineral Chemistry of Middleton Copper Occurrence of the Western Gabbro, Coldwell Alkaline Complex, Ontario
Publication Number: BSc Thesis Date: 1992
Author: Penczak, R.S.
Publisher Name: Unpublished thesis from University of Waterloo
Location: Thunder Bay RGP
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