Ontario Geological Survey
Permanent Link to this Record:
MDI52N04NW00004
| Record Name(s) | Fahlgren - 1982, Luxor - Occ. A - 1982 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1982-Aug-26 |
| Date Last Modified | 2022-Jun-28 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: McDonough
Latitude: 51° 7' 39.82" Longitude: -93° 50' 59.15"
UTM Zone: 15 Easting: 440536.708 Northing: 5664372.044 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N04NW
Point Location Description: N/A
Location Method: Conversion from MDI
Luxor Red Lake Mines, Ltd. was incorporated in 1936 to acquire the property, which was formerly held by McNeely Red Lake Holdings, Ltd. 1937: Surface work and one diamond drill hole. 1962: EM and magnetometer survey.
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 occurrence is underlain by a quartz porphyry dyke which has intruded a sequence of mafic flows and iron formation. The mafic volcanic rocks and iron formation strike NE-SW and dip subvertically. The porphyry dyke strikes slightly north of east and dips vertically. DEPOSIT DESCRIPTION: Porphyry dyke 'A' is about 2.7 m wide and contains a fair amount of pyrite. Gold mineralization occurs in pyritiferous sections of the dyke. GEOPHYSICAL DATA: The geophysical surveys were stopped to the south of the occurrence.
| Rock Type | Rank | Composition | Texture | Relationship | Quartz-Feldspar Porphyry | 1 | Quartz Porphyry | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Adjacent | ||
| Ironstone-unsubdivided | 3 | Iron Formation | Adjacent |
Dec 07, 2005 (K R Kettles) - The occurrence is underlain by a quartz porphyry dyke which has intruded a sequence of mafic flows and iron formation. The mafic volcanic rocks and iron formation strike NE-SW and dip subvertically. The porphyry dyke strikes slightly north of east and dips vertically: Porphyry dyke 'A' is about 2.7 m wide and contains a fair amount of pyrite. Gold mineralization occurs in pyritiferous sections of the dyke.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Quartz | Alteration | Silicification | 1 |
Dec 07, 2005 (K R Kettles) - MDI1 DATA: GRADE 1937 - GRAB FROM TRENCH: 0.24 OPT AU, GRADE 1937 - CHIP SAMPLES: ACROSS FACE OF DYKE UP TO 0.04 OPT AU A grab sample from a trench assayed 0.24 oz/ton (8.228 g/tonne) Au. Chip samples across the face of the dyke assayed up to 0.04 oz/ton (1.371 g/tonne) Au. Porphyry dyke 'A' is about 2.7 m wide and contains a fair amount of pyrite. Gold mineralization occurs in pyritiferous sections of the dyke.
Dec 07, 2005 (K R Kettles) - The rocks surrounding the porphyry dyke have been silicified.
File - Resident Geologist files AF RL 1937 McDonough #5
Publication Number: AF RL 1937 Date: 1937
Author: Shepherd, J.H.
Publisher Name:
Location: Red Lake RGP
File - Resident Geologist files AF RL 1961 McDonough #18
Publication Number: AF RL 1961 Date: 1961
Author:
Publisher Name:
Location: Red Lake RGP
Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2
Publication Number: OFR5558 Page: 604-605 Date: 1987
Author: Durocher M.E., Burchell P.S., Andrews A.J.
Publisher Name: Ontario Geological Survey
Location:
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