Ontario Geological Survey
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MDI52N04SW00344
| Record Name(s) | C. W. Peterson Occurrence 73-9 - 1987, Fisher Island Group - 1987 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1996-Dec-28 |
| Date Last Modified | 2023-Jun-08 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Fairlie
Latitude: 51° 2' 5.81" Longitude: -93° 56' 26.78"
UTM Zone: 15 Easting: 434036.651 Northing: 5654132.056 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N04SW
Point Location Description: N/A
Location Method: Data Compilation
1973: The property was held by C. W. Peterson of Red Lake. Prospecting and overburden stripping were completed along with trenching and three diamond drill holes.
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Red Lake
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (K R Kettles) - GEOLOGICAL DESCRIPTION: The occurence is located on the southwest corner of the Dome Stock, and is primarily underlain by chemical metasedimentary rocks (marble), diorite, and metavolcanics, with thin intercalated beds of iron formation. The chemical metasedimentary rocks dip steeply to the northeast. Southwest of the boundary with the Dome Stock, diorite appears as thick intrusive units in the metasedimentary and metavolcanic rocks. Iron formation occurs between beds of marble and metavolcanic rocks. Occasional lamprophyre dikes have been noted in the area. Minor pyrite and arsenopyrite are present in the marble units. DEPOSIT DESCRIPTION: The highest gold values have ben found in highly silicified units which are close to the iron formation. Quartz veins are present, but have returned lower gold assays than the silicified metasediments. Up to 5% pyrite and 1% arsenopyrite are present in the silicified metasedimentary and metavolcanic rocks.
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Marble | Adjacent |
|---|---|---|---|---|
| Diorite | 2 | Diorite | Near | |
| Ironstone-unsubdivided | 3 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Arsenopyrite | Economic | Ore | ||||
| 4 | Pyrrhotite | Economic | Ore | ||||
| 5 | Chalcopyrite | Economic | Ore | ||||
| 6 | Magnetite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Silicate | Alteration | Silicification | 1 | Strong | Veins |
Dec 07, 2005 (K R Kettles) - Assays of 0.01 oz/ton (0.343 g/tonne) Au over zones up to 0.8 m in width were returned from drill core.
Dec 07, 2005 (K R Kettles) - The highest gold values were found in strongly silicified zones.
File - Resident Geologist's Files, Red Lake
Publication Number: RGF RL Date: 1973
Author: Peterson, C.W.
Publisher Name:
Location: Red Lake RGP
Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2
Publication Number: OFR5558 Date: 1987
Author: Durocher M.E., Burchell P.S., Andrews A.J.
Publisher Name: Ontario Geological Survey
Location:
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