Ontario Geological Survey
Permanent Link to this Record:
MDI42C01NW00035
| Record Name(s) | Chuck Lake Copper Showing - 1966, Jogran - 1985 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-Sep-06 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Secondary Commodities: Gold
Township or Area: Aguonie
Latitude: 48° 13' 54.82" Longitude: -84° 28' 21.56"
UTM Zone: 16 Easting: 687675.26 Northing: 5345163.08 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C01NW
Point Location Description: Outcrop on NE shore of Chuck Lake
Location Method: Field Visit
Access Description: The site is accessible only by float plane from Wawa or Hawk Junction.
1943-44: Leitch Gold Mines Ltd. - prospecting. 1959: Canorama Exploration - ground magnetic and EM surveys. 1960: Caesar Minerals Ltd. - ground magnetic survey. 1966: Acme Gas and Oil Co. - airborne geophysics. 1966: Jogran Mines Ltd. - prospecting. 1972-74: Getty Mines Ltd. - airborne geophysics, reconnaissance mapping, detailed mapping.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Aguonie-0019 | 42C08SW8691 | 42C08SW8691 |
| Aguonie-0021 | 42C02NE0023 | 42C02NE0023 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - The occurrence appears to lie in the western extension of the Cradle Lakes Deformation Zone (CLDZ). The CLDZ is subarallel to stratigraphy and occurs largely within feldspar-crystal tuffs. The CLDZ contains a large, east-striking high-strain zone that is up to 40 m wide and has been traced for several hundred metres along strike. The CLDZ occurs close to a major contact between 2750 Ma cycle two and 2700 Ma cycle three metavolcanics. The rocks are characterized by strong alteration, generally confined to zones of high strain and characterized by Fe-carbonatization and sericitization.
| Rock Type | Rank | Composition | Texture | Relationship | Felsic Crystal Tuff | 1 | Rhyolitic | Quartz-Felspar Crystal Tuff | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz-Carbonate | Host |
Dec 07, 2005 (A Wilson) - The occurrence consists of veinlets of chalcopyrite and pyrite within quartz-veined rhyolite. The rhyolite is sheared and brecciated. The mineralization consists of pyrite and chalcpyrite with smoe malachite staining. Extensive malachite staining has been observed in an outcrop on the east side of Chuck Lake. Brecciation and alteration similar to that observed at the occurrence has been observed in an outcrop approximately 20 feet to the south.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| Malachite | Alteration | Supergene | 1 | Weak | Replacement | ||
| Sericite | Alteration | Saussuritization | 2 | Weak | Veins | ||
| Silica | Alteration | Silicification | 3 | Weak | Veins |
Dec 07, 2005 (A Wilson) - Chip samples collected by Getty returned values of 0.7% and 0.35% Cu over 20 feet. One grab sample returned a value of 0.78% Cu. In 1966, Jogran Mines obtained assays of 0.406% Cu over48 feet from a chip sample and a value of 2.14% Cu from a grab sample.
| Rank | Characteristic |
|---|---|
| 1 | Stockwork |
| 2 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 300 |
Map - Precambrian Geology, Aguonie Township
Publication Number: OFM0217 Scale: 1:15,840 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Folio - Aguonie Township, District of Algoma
Publication Number: GDIF172 Date: 1997
Author: Sault Ste Marie RGO
Publisher Name: Ontario Geological Survey
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 107 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 114 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Aguonie, Bird, Finan and Jacobson Townships, District of Algoma
Publication Number: OFR5588 Page: 73-74 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 12 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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