Ontario Geological Survey
Permanent Link to this Record:
MDI52B14NW00018
| Record Name(s) | Al308 - 1991, Nahanni Mines - 1991 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Feb-22 |
| Date Last Modified | 2024-Apr-29 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Silver
Township or Area: Ramsay Wright
Latitude: 48° 51' 40.21" Longitude: -91° 17' 30.31"
UTM Zone: 15 Easting: 625289.893 Northing: 5413429.561 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52B14NW
Point Location Description: Shafts/ AMIS # 08509
Location Method: Data Compilation
Access Description: Access is via the Premier Lake Road, then by a Domtar logging road, for a total distance of 15km.
Refer to the Sunbeam (MDI52B14SW00014) and Roy Properties (MDI52B14NW00017), development and exploration activity carried out during early 1900s. Two shafts and 2 pits observed , shafts inclined to the northwest.
Province: Superior
Terrane: Marmion
Geological Age: Archean
Dec 07, 2005 (R Tuomi) - The AL308 Occurrence was rediscovered during the construction of a forest access road by Domtar Limited in Ramsay Wright township. Two shafts and two pits occur on patented claim AL308. A quartz vein was observed, up to 2.5 meters in widh, striking 230 degrees and dipping 44 degrees northwest. The vein is hosted by an intensly sheared and altered trondhjemite of the Marion Lake Batholith. The massive trondhjemite is represented by chlorite-carbonate shists, near actual vein contacts. Visible mineralization includes pyrite, with accessory minerals including gren mica, sericite, chlorite and ankerite. The 'protogene' or alteration granite contains abundant pyrite mineralization. The AL308 Occurrence appears to be an extension of the Sunbeam and Roy structure.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Pyrite | Economic | Ore |
Map - Geological series, Sapawe Lake area, west part, Rainy River District
Publication Number: P2389 Scale: 1:15,840 Date: 1981
Author: McIlwaine W.H., Larsen C.R.
Publisher Name: Ontario Geological Survey
Location:
Mono - Property visits and reports of the Atikokan economic geologist, 1979-1983, Atikokan geological survey
Publication Number: OFR5539 Page: 58-59 Date: 1985
Author: Schnieders B.R., Dutka R.J.
Publisher Name: Ontario Geological Survey
Location:
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