Ontario Geological Survey
Permanent Link to this Record:
MDI41P01NE00007
| Record Name(s) | Coppersand Lake Property - 1964, A. Hardie Property - 1970, Derosier Property - 1957, Hardie Prospect - 1979 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1982-Oct-29 |
| Date Last Modified | 2022-Sep-19 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Gold, Silver, Lead
Secondary Commodities: Cobalt, Nickel
Township or Area: Cynthia
Latitude: 47° 8' 29.33" Longitude: -80° 4' 8.19"
UTM Zone: 17 Easting: 570597 Northing: 5221307 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 41P01NE
Point Location Description: Vein
Location Method: Field Visit with GPS
Access Description: Access for the visit was from the lake shore at a campsite at 570925E 5220120N with the occurrence being about 1.2 km to the north. The Ferguson Trail is located to the east of the campsite and the meandering trail appears to pass close to the occurrence. On our visit in July 2009, the trail was well travelled in some areas and could not be found in others. Access described in older reports indicates road access was possible from the Red Squirrel Road that intersects Hwy 11 north of the village of Temagami.
Circa -1919: Father Paradis - pitting, trenching. Pre-1932: small shipments of ore reportedly shipped. 1957-69: D. Derosier - trenching, DD-1. 1960: Mayer Mining Company Limited - DD-6. 1965-66: Keevil Mining Group Limited ground geophysics. 1965: Keevil Mining Group Limited ground geophysics. 1970-75: A. Hardie / Gunnex Limited - DD-20-2500 ft., stripping, trenching, pitting, 300-lb bulk sample taken, ground geophysics, prospecting.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| CO-0883 | 41P01NE0002 | 41P01NE0002 |
| 63.1818 | 41P01NE0001 | 41P01NE0001 |
| 63.3359 | 41P01NE0005 | 41P01NE0005 |
| CO-0086 / 63.1818 | 41P01NE0001 | 41P01NE0001 |
| CO-0884 / 63.3410 | 41P01NE0004 | 41P01NE0004 |
| CO-0883 / W7008-00086 | 41P01NE5002 | 41P01NE5002 |
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
Jun 19, 2012 (D Guidon) - The Gowganda Formation sedimentary rocks are argillite, greywacke and conglomerate. The vein is in diabase near the contact with Huronian greywacke. The vein strikes about 170 and dips about 10. Quartz-carbonate vein at least 2 m thick as exposed. Mineralization is patchy within the vein and can be coarse grained. Zones of malachite, pyrite and a magnetic mineral (phyrrotite?) and possibly galena.
| Rock Type | Rank | Composition | Texture | Relationship | Diabase | 1 | Diabase | Adjacent |
|---|---|---|---|---|
| Vein | 2 | Quartz-Carbonate | Host | |
| Conglomerate | 3 | Near | ||
| Claystone | 4 | Contains |
Jan 29, 2013 (A Wilson) - Quartz-carbonate veins are found both in the diabase and the adjacent varved argillite near the lower contact of the diabase sill.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Gangue | ||||
| 3 | Pyrite | Economic | Gangue | ||||
| 4 | Galena | Economic | Gangue | ||||
| 5 | Arsenopyrite | Economic | Gangue |
Jun 19, 2012 (D Guidon) - Mineralization consists of chalcopyrite, malachite, pyrrhotite, and traces of pyrite and galena. Crude banding of the mineralization has been noted parallel to the base of the sill (Simony 1964, Kirkland Lake assessment file CO-0884). A vein sample with about 5% sulphide mineralization, collected during the recent examination, returned an assay of 1.4% copper and greater than 187 ppm Co. Historical diamond drilling, on 100 foot (30.48 m) centres, outlined mineralization over about 600 square feet (55 m2) with intersections varying from nil to 13 feet (4 m). Mineralization consists of chalcopyrite, malachite, pyrrhotite, and traces of pyrite and galena. Crude banding of the mineralization has been noted parallel to the base of the sill (Simony 1964, Kirkland Lake assessment file CO-0884). A vein sample with about 5% sulphide mineralization, collected during the recent examination, returned an assay of 1.4% copper and greater than 187 ppm Co. The prospects geological location, at the contact of Nipissing Diabase and Gowganda Formation sedimentary rocks near the unconformity with older Archean volcanic rocks, is similar to Cobalt silver deposits, but it lacks the coppernickel-iron arsenides associated with such deposits. Other than the presence of chalcopyrite occurring in the Lake Temagami area, the prospect shows no other similarities for the past-producing Copperfields Mine. The prospect, as defined by diamond drilling, is limited, flat lying, with its narrow thickness limiting its economic potential. Exploration in the area is further encumbered by land alienations.
Jan 29, 2013 (A Wilson) - The thickness of the mineralized zone reportedly varies from a maximum of 13 feet to a minimum of 1.5 feet. There are three main showings on the property. The southernmost showing comprises a flat-lying quartz-carbonate vein containing pyrite, chalcopyrite, pyrrhotite and galena in stringers and patches. This vein lies near the lower contact of the diabase and contains inclusions of sheared diabase and argillite. Grab samples collected from the vein by Derosier returned assays of 1.36-10% Cu, up to 5.32% Ag and up to 3.59% Pb. A chip sample from the vein collected by the ODM in 1960 assayed 0.02 oz/t Au, 1.42% Cu, and traces of Co, Ni and Ag. The central showing lies at the diabase-argillite contact where a conformable vein of quartz-carbonate. The 6 inch to 6 ft wide vein dips 20ºW and SW. Grab samples from the site assayed 9.22% Cu, 0.13% Ni, 0.09% Co and 8.56% Ag. The northernmost showing is an 8 ft thick quartz vein cutting interbedded conglomerate and greywacke. This vein strikes N30W and dips 10º-40º NE. Assays from the Gunnex drilling returned best assays of 0.14% Ag, 0.2% Cu over 1.4 ft from DDH G-1; 1.14 oz/t Ag, 0.14 oz/t Au and 2.15% Cu over 1 ft from DDH G-3. All drilling was concentrated on the northernmost showing. Assays from a sampling program completed by A. Hardie in 1975 returned assays of: 7.95% Cu and 2.1 oz/t Ag over 20 ft; 4.73% Cu, 1.20 oz/t Ag over 30 ft. The best assays from chip samples returned 19.9% Cu over 3 ft; and 5.64% Cu over 3 ft.
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Gold | Unknown | 90 | ppb | |||
| Gold | Unknown | 93 | ppb |
| Rank | Classification |
|---|---|
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular |
Date: Jul 20, 2009
Geologist: D Guidon
Notes: Property visited in July 2009 with G. Grabowski and E. Chamillard. Key Word in Description Photo Number Description UTM Zone Easting Northing 731328 Lake Temagami - view of hill across lake - Coppersand showing on hill far right of photo 17 568710 5220670 731334 Lake Temagami - Gary Grabowski tracing a map to Coppersand 17 568710 5220670 731336 Coppersand - large quartz-carb vein 17 571070 5221100 731337 Coppersand - malachite 17 571070 5221100 731338 Coppersand - malachite and pyrrhotite 17 571070 5221100 Samples collected: 9302 Quartz-Calcite Vein Cynthia 83 17 571070 5221100 9303 Quartz-Calcite Vein Cynthia 83 17 571070 5221100
File - Resident Geologist files CO-0887
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Map - Diamond Lake, Nipissing, Sudbury and Timiskaming districts
Publication Number: M2259 Scale: 1:63,360 Date: 1973
Author: Card K.D., Meyn H.D.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of the Maple Mountain area, districts of Timiskaming, Nipissing and Sudbury
Publication Number: R106 Page: 90-92 Date: 1973
Author: Card K.D., McIlwaine W.H., Meyn H.D.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of northwestern Timagami area, District of Nipissing
Publication Number: R028 Page: 21-23 Date: 1997
Author: Simony P.S.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold deposits of Ontario, part 2, part of District of Cochrane, districts of Muskoka, Nipissing, Parry Sound, Sudbury, Timiskaming, and counties of southern Ontario
Publication Number: MDC018 Page: 24 Date: 1979
Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.
Publisher Name: Ontario Geological Survey
Location:
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Page: 43 Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological Compilation of the Cobalt-Temagami Area, Abitibi Greenstone Belt
Publication Number: P3581 Scale: 1:100,000 Date: 2006
Author: Ayer J.A., Chartrand J.E., Grabowski G.P.B., Josey S.D., Rainsford D.R.B., Trowell N.F.
Publisher Name: Ontario Geological Survey
Location:
Map - Northwestern Timagami area, Nipissing District
Publication Number: M2057 Scale: 1:31,680 Date: 1997
Author: Simony P.S.
Publisher Name: Ontario Dept. of Mines
Location:
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