Ontario Geological Survey
Permanent Link to this Record:
MDI52M01SW00002
| Record Name(s) | Middle Bay - 1936, Miles Red Lake Mines A Zone - 1945 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1979-May-05 |
| Date Last Modified | 2022-Dec-05 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Silver
Township or Area: Ball
Latitude: 51° 3' 3.98" Longitude: -94° 15' 40.78"
UTM Zone: 15 Easting: 411591.84 Northing: 5656264.99 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52M01SW
Point Location Description: Shaft location
Location Method: Data Compilation
Pre-1936: 670 m of trenching. 1936: Middle Bay Mines drilled 11 diamond drill holes totalling 610 m. 1945: Miles Red Lake Gold Mines drilled 14 holes totalling 1218 m. 1948: Miles Red Lake completed a total of 200 feet of drifting and 40 feet of crosscutting on the 154-foot level. 1946: 2 diamond drill holes on a claim to the west to test the extension of the main zone. 1946-47: Miles Red Lake developed the shaft to 91 m, levels at 46 m, and 84 m. Lateral development on 46 m, 84 m, and a total of 610 m underground drilling performed. 1963: Cochenour Willans Gold Mines carried out regional self potential, magnetometer surveys. 1994: Hemlo Gold Mines carried out line cutting, a magnetic survey, prospecting, geological mapping, prospecting and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.15796 | 52M01SE0041 | 52M01SE0041 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Red Lake
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Amphibolite
Dec 07, 2005 (K R Kettles) - This deposit is underlain by felsic tuff, feldspar porphyry dikes and serpentinized ultramafic rock. The rocks have been sheared parallel to bedding and this shear zone contains auriferous veins and lenses of quartz, with much sulphide mineralization. Quartz veins are reportedly best developed within 9 m of a feldspar-porphyritic syenite dike encountered underground. Gold values are associated only with sulphide-bearing quartz. Non-mineralized quartz carried no gold.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Basalt | Adjacent |
|---|---|---|---|---|
| Quartz Syenite | 2 | Porphyry Dike | Adjacent | |
| Mylonite/Fault Gouge/Pseudotachylite | 3 | Shear Zone | Contains | |
| Vein | 4 | Smokey Quartz | Host | |
| Felsic Tuff | 5 | Sheared Tuffs | Adjacent |
Sep 29, 2020 (Therese Pettigrew) - The A Zone is located adjacent to the head frame in a series of parallel trenches. The host rock is a mafic volcanic near the contact with felsic quartz eye tuffs. The mineralization is hosted within rusty quartz veins with grab values up to 7 gpt Au. This zone is located on the shoulder of a magnetic high near the interpreted border of the deformation zone (Assessment report 52M01SE0041).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Silver | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 4 | Pyrrhotite | Economic | Ore | ||||
| 5 | Sphalerite | Economic | Ore | ||||
| 6 | Galena | Economic | Ore | ||||
| 7 | Chalcopyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Sericite | Alteration | Chloritic | 1 | Unknown | Disseminated | ||
| Chlorite | Alteration | Chloritic | 2 | Unknown | Disseminated | ||
| Silica | Alteration | Silicification | 3 | Unknown | Disseminated |
Dec 07, 2005 (K R Kettles) - Sheared felsic tuffs and feldspar porphyry are silicified, and carry auriferous veins and lenses of milky quartz and smokey quartz. Gold is associated with the smokey quartz, and when it carries sulphides. Non-mineralized/sulphide-rich quartz carried no gold. Sporadic gold values occur over about 9 m width and 150 m strike length. Some assays from surface drilling include the following: .24 opt Au/1.01 m, .30 opt Au/.82 m, .94 opt Au/.61 m, .05 opt Au/.61 m, and .06 opt Au/.67 m. Channel samples at the 46 m level had an assay of .20 opt Au/1.52 m, and many others at .02 opt Au.
Dec 07, 2005 (K R Kettles) - The wallrocks next to the shear zone are altered to sericite and chlorite, and are silicified.
| Rank | Classification |
|---|---|
| 1 | Unknown |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 150 | 9 | 46 |
Date: Jan 06, 1997
Geologist: K R Kettles
Notes: N/A
File - Resident Geologist files Ball #9
Publication Number: Date:
Author:
Publisher Name:
Location: Red Lake RGP office
Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2
Publication Number: OFR5558 Page: 102-103 Date: 1987
Author: Durocher M.E., Burchell P.S., Andrews A.J.
Publisher Name: Ontario Geological Survey
Location:
Part - Gold deposits in the vicinity of Red Lake
Publication Number: ARV44-06.001 Page: 47-49 Date: 1997
Author: Hurst M.E.
Publisher Name: Ontario Dept. of Mines
Location:
File - 1948 Resident Geologist's Files, Red Lake
Publication Number: AF RL 1948 Date: 1948
Author: Anonymous (R. Thompson?)
Publisher Name:
Location: Red Lake RGP
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 192 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Part - Geology and mineral deposits of the Red Lake area
Publication Number: ARV49-02 Page: 185-187 Date: 1998
Author: Horwood H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Mines of Ontario in 1948
Publication Number: ARV58-02 Page: 60 Date: 1997
Author: Williams I.
Publisher Name: Ontario Dept. of Mines
Location:
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