Ontario Geological Survey
Permanent Link to this Record:
MDI52J02SE00017
| Record Name(s) | Oz Island - 1947, Pa 612047 - 1947 |
|---|---|
| Related Record Type | SIMPLE |
| Record Status | Occurrence |
| Date Created | 1991-Jan-20 |
| Date Last Modified | 2021-Dec-07 |
| Created By | Q Unknown |
| Revised By | Therese Pettigrew |
Primary Commodities: Gold, Silver
Township or Area: Squash Lake Area
Latitude: 50° 1' 49.38" Longitude: -90° 43' 26.11"
UTM Zone: 15 Easting: 663009.74 Northing: 5544490.86 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52J02SE
Point Location Description: Map of gold-bearing quartz vein in Assessment report 52J02SE9265
Location Method: Based on Assessment
Access Description: By aircraft in winter or summer. A snowmobile or boat can reach the lake from any access point off Hwy. 599 between Cobb Bay and Horizontal Bay of Sturgeon Lake.
Circa 1947: several holes were drilled on the southern of the two islets by persons unknown, and trenching as carried out. 1983: Moran Resources Corp. carried out stripping, mapping, and a VLF-EM survey. 1987: C.J. Kuryliw conducted magnetic and VLF-EM surveys. 1996: Equator Mining Corp. carried out prospecting and sampling. 2009: Paragon Minerals Corp. carried out prospecting, sampling, and mapping. 2010-11: Paragon carried out prospecting and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52J02SW CN-0070 | 52J02SW8637 | 52J02SW8637 |
| 2.49128 | 20000006229 | 20000006229 |
| 2.10183 | 52J02SE8667 | 52J02SE8667 |
| 52J02SE FE-0125 | 52J02SE0010 | 52J02SE0010 |
| 2.48578 | 20000005683 | 20000005683 |
| 52J02SE-0058-A1 | 52J02SE9265 | 52J02SE9265 |
Province: Superior
Subprovince: Wabigoon
Belt: Sturgeon Lake
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Basalt | Host | |
| Quartz Porphyry | 3 | Quartz | Near | |
| Quartz-Feldspar Porphyry | 4 | Quartz - Feldspar | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Galena | Economic | Ore | ||||
| 4 | Pyrite | Economic | Ore | ||||
| Carbonate | Alteration | Carbonatization | 1 | Unknown | Disseminated | ||
| Quartz | Alteration | Silicification | 2 | Unknown | Disseminated |
Apr 29, 2020 (R Tuomi) - The islands are composed of massive to foliated mafic metavolcanics. The volcanics are intruded by relatively coarse-grained quartz porphyry and quartz feldspar porphyry lenses, from 1 to 20 m in width, which strike approximately east-west. Two shear zones, one striking 120 degrees and the other 060 degrees, cut the outcrop. These shears range from 2 to 4 m in width and have been trenched at several locations on the two islands. One shear zone, which strikes 060 degrees , is located on the east end of the of the west island. This shear hosts a 0.3m wide quartz vein containing pyrite, chalcopyrite and galena mineralization. Gold assays from this vein have ranged from 0.4 to 0.75 ounce gold per ton. Several groups have examined the islands and sampled the pit. C.G. Patterson, then with Dennison Mines Ltd., reported an assay of 0.74 ounce gold per ton and 0.22 ounce silver per ton from a sample of quartz containing pyrite, chalcopyrite and galena. The Resident Geologist sampled the site in 1983 and obtained similar results.
Apr 29, 2020 (Therese Pettigrew) - The line of islands from Rainbow, Oz and Rainbow Island South forms a trend parallel to the ESE shear zone passing through East Bay. Sampling of the Oz Island showing in 2010 by Paragon returned an assay of 23.1 g/t Au (Assessment report 20000006229). Samples collected by Equator Mining while prospecting in 1996 returned 340 to 540 ppb Au from a quartz vein carrying oxidized sulphides. The vein is approximately 0.6 m wide and has an exposed length of approximately 2.4 m (Assessment report 52J02SE0010).
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For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office