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Ontario Geological Survey
Permanent Link to this Record:
MDI000000001872
Record Name(s) | Road Zone - 1982, Sunbeam-Pettigrew Property - 2010, Ramsay-Wright - 1982, Al28 - 1898 |
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Related Record Type | |
Related Record(s) | |
Record Status | Prospect |
Date Created | 2015-Nov-23 |
Date Last Modified | 2024-Apr-30 |
Created By | |
Revised By |
Primary Commodities: Gold
Township or Area: Ramsay Wright
Latitude: 48° 51' 38.75" Longitude: -91° 16' 56.59"
UTM Zone: 15 Easting: 625978 Northing: 5413400 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52B14SW
Point Location Description: Precise, DDH SP11-06 from Assessment Report (AFRI 20000006911)
Location Method: Based on Assessment
Access Description: The Sunbeam-Pettigrew property is located 10 km north-northeast of Sapawe Lake, District of Rainy River. It is 27 km east-northeast of Atikokan, Ontario. Access is via the Premier Lake Road and trails on the property.
The Sunbeam-Pettigrew property is located 10 km north-northeast of Sapawe Lake, District of Rainy River. It is 27 km east-northeast of Atikokan, Ontario. Access is via the Premier Lake Road and trails on the property.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
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11 | 52B14NW0015 | 52B14NW0015 |
2.3498 | 52B14NW0017 | 52B14NW0017 |
2.44628 | 20000004579 | 20000004579 |
2.48204 | 20000006911 | 20000006911 |
2.45636 | 20000006469 | 20000006469 |
2.3616 | 52B14NW0016 | 52B14NW0016 |
2.10993 | 52G03SE0032 | 52G03SE0032 |
OP91-215 | 52B14SW0044 | 52B14SW0044 |
Province: Superior
Subprovince: Wabigoon
Geological Age: Archean
Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
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Granodiorite | 2 | Tonalite To Granodiorite | Adjacent |
Nov 23, 2015 (Therese Pettigrew) - Nahanni Mines 1982 drill program had the following results: RW82-10: 8.5 m @ 4.8 g/t Au, including 1.8 m @ 15.8 g/t Au. This intersection is in an 18 m long section containing a pyrite-bearing quartz-sericite zone with quartz veins (which host the gold) and several chlorite shears, surrounded by silicified tonalite. RW82-13: 2.04 m @ 0.29 g/t Au. The Sunbeam lineament features anomalous gold over at least 3.9 km of strike length, including the Road Zone, the past-producing Sunbeam deposit, and the AL198 Zone. Three historical shafts occur at the Road Zone, where TerraX's samples returned up to 2.6 g/t Au (AFRO 2.44628). Mapping in September 2009 revealed that the controlling shear structure in the immediate area of the best surface mineralization strikes approximately 240 degrees and dips 65 degrees northwest. This zone is also hosted by variably textured tonalite, with minor northwest-striking mafic dykes. TerraX drilled holes SP11-06 to SP11-08 spaced 50 m apart, targeting this quartz vein system and the mineralized zone encountered by Nahanni in their 1982 drill hole RW82-10. Each hole hit medium-grained tonalite and gneissic tonalite, cut by rare mafic dykes. Each hole also intersected a 10 to 14 m wide alteration zone consisting of moderate to intense sericitization, moderate hematization, moderate silicification, weak chloritization, up to 3% pyrite, rare pyrrhotite and local fuchsite. The alteration zone was consistently encountered at the 60 to 65 m mark in each hole. Quartz-ankerite-pyrite veins up to 10 cm wide comprise approximately 2% of the zone. The alteration zone in hole SP11-06 returned a very encouraging 13.90 m @ 1.11 g/t Au. Apart from the very local occurrence of pyrrhotite in hole SP11-06, the alteration zone was visually identical in all three holes. However, holes SP11-07 and SP11-08 contained only anomalous levels of gold (AFRI 20000006911).
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
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3 | Pyrite | Economic | Ore | ||||
5 | Pyrrhotite | Economic | Ore | ||||
1 | Quartz | Economic | Gangue | ||||
2 | Ankerite | Economic | Gangue | ||||
4 | Fuchsite | Economic | Gangue | ||||
Sericite | Alteration | Sericitization | 1 | Medium | Disseminated | ||
Hematite | Alteration | Hematization | 2 | Medium | Disseminated | ||
Silica | Alteration | Silicification | 3 | Medium | Disseminated | ||
Chlorite | Alteration | Chloritic | 4 | Weak | Disseminated |
Rank | Classification |
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1 | Lode (Gold) |
1 | Vein |
Rank | Characteristic |
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1 | Sheared |
1 | Vein |
Map - Precambrian Geology, Sapawe Area
Publication Number: P3350 Scale: 1:50,000 Date: 1995
Author: Stone D., Pufahl P., Carter J.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Sapawe Lake area, east part, Rainy River District
Publication Number: P2388 Scale: 1:15,840 Date: 1981
Author: McIlwaine W.H., Larsen C.R.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office