Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI52J02SW00015| Deposit Name(s) | King Bay Porphyry Zone - 1983, Nw King Bay - 1971, Zone C - 1971 |
|---|---|
| Related Deposit Type | None |
| Deposit Status | occurrence |
| Date Created | 1995-May-30 |
| Date Last Modified | 2020-Mar-30 |
| Created By | Q Unknown |
| Revised By | T Pettigrew |
Primary Commodities: gold
Township or Area: Fourbay Lake Area
Latitude: 50° 1' 32.06" Longitude: -90° 48' 20.42"
UTM Zone: 15 Easting: 657171 Northing: 5543781 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52J02SW
Point Location Description: DDH KB-29-83 on map in assessment report 52J02SW0040
Location Method: based on assessment
Source Map: OGS 1980 MAP 2420 SQUAW LAKE
Sources Map Scale: 1:25 000
Access Description: The best access to the area is from Sturgeon Lake. In summer, a boat can be launched from any access point on Sturgeon Lake from Cobb Bay to Horizontal Bay. A short walk off the northwest corner of King Bay will reach the site. In winter a snowmobile or aircraft can be used.
1970: Silverside Mines Ltd. flew an airborne EM and magnetic survey. 1971: Zone C is defined by geological and geophysical surveys done by Silverside. Steep Rock Resources Inc. 1973: Diamond drill holes 1,2 and 3 were drilled to a depth of 200 feet in the anomalous area by Silverside Mines Ltd. No assays. 1983: Diamond drill hole #KB-29-83 totalling 823.5 m was drilled by Steep Rock Resources Inc.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52J02SW-0035-A | 52J02SW8645 | Open |
| 52J02SW AI-0021 | 52J02SW0040 | Open Open |
| 52J02SW75A1 | 52J02SW9147 | Open |
| 2.151 | 52J02SW8646 | Open |
| 52J02SW-0012-C1 | 52J02SW8649 | Open |
Province: Superior
Subprovince: Wabigoon
Belt: Sturgeon Lake
Geological Age: Archean
02/01/2000 (R Tuomi) - 1971: Geology and geophysics define zone C 1973: DDH #2 (AF 0012-C1) 1983: DDH #KB-29-83 (AF -0021) No visible surface expression. intersects wide zone of carbonate alteration in porphyry with disseminated pyrite and pyrrhotite.
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| metasedimentary | 1 | graphitic argillite | contains | |
| mafic to intermediate metavolcanics | 2 | tuff | contains | |
| vein | 3 | blue quartz | host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | chalcopyrite | economic | ore | ||||
| 2 | gold | economic | ore | ||||
| 3 | graphite | economic | ore | ||||
| 4 | pyrite | economic | ore | ||||
| 5 | pyrrhotite | economic | ore | ||||
| 1 | calcite | economic | gangue | ||||
| 2 | carbonate | economic | gangue | ||||
| carbonate | alteration | carbonatization | 1 | unknown | disseminated | ||
| graphite | alteration | graphitiic | 2 | unknown | disseminated | ||
| calcite | alteration | calcitization | 3 | unknown | disseminated |
02/14/2000 (R Tuomi) - AVERAGE GRADE: range from 0.025 to 0.12 ounce per ton gold in drill hole intersections.
03/30/2020 (T Pettigrew) - DDH KB-29-83 returned up to 1.278 ppm Au over 0.6 feet from a blue quartz vein with pyrite and chalcopyrite in laminated graphitic argillite and mafic to intermediate tuffs (Assessment report 52J02SW0040)
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