Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52M01SE00061

Record: MDI52M01SE00061

General

Mineral Record Identification
Record Name(s) Miles - B Zone - 1945, Cochenour Willans-Miles 'B' Zone - 1963, Miles Red Lake 'B' Zone - 1945, Pancake Bay Au - 2012
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Mar-12
Date Last Modified 2022-Sep-28
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Ball

Latitude: 51° 2' 7.2"    Longitude: -94° 14' 30.89"

UTM Zone: 15    Easting: 412923   Northing: 5654488    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52M01SE

Point Location Description: Trench with py, Au showing on OGS map M2265

Location Method: Data Compilation

Access Description: 200 FT NORTH FROM THE NORTH SHORE OF PANKAKE BAY.



Exploration History

1930s: Owned by Middle Bay Mines. 1945: Miles Red Lake Mines drilled 2 DDH. 1963: Cochenour Willans Gold Mines performs regional self potential, magnetometer, and geological survey. 2001: Goldcorp carried out sampling and mapping. 2003 and 2004, grab samples taken over the entire property by Goldcorp. 2011: Halo Resources conducted IP and ground magnetic surveys, geological mapping, and sampling. 2012: Halo Resources drilled 5 DDH totalling 1295 m.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
BALG 120 / 2.29219 52M01SE2041 52M01SE2041
2.53599 20000009268 20000009268
2.53928 20000008848 20000008848
2.23827 52M01SE2018 52M01SE2018

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Red Lake

Geological Age: Archean  

Metamorphism Type: Regional

Metamorphism Grade: U. Greenschist



Geology Comments

Dec 07, 2005 (K R Kettles) - This area is underlain by siliceous dolomite marble that strikes N50 degs W and dips steeply to the north. There are some felsic tuffs interlayered with these chemical sediments. Cross-sectional drilling in late 1945 encountered gold values over 4.27 m of drill core. The gold is hosted in a very siliceous portion of the chemical sediments. Gold was associated with pyrite, biotite, and chlorite.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Dolomite Marble 1 Chert Chemical Sediment Host
Dolomite Marble 2 Chert-Siliceous Chemical Sediment Near
Felsic Tuff 3 Tuffs Near
Ironstone-unsubdivided 4 Host
Sandstone 5 Sandstone

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicOre
2MagnetiteEconomicOre
1ChertEconomicGangue
2QuartzEconomicGangue

Mineralization Comments

Mar 23, 2012 (K R Kettles) - Gold is hosted in a very siliceous portion of the chemical sediments. The gold was found in association with fine-grained pyrite, biotite, and chlorite. Gold occurs in a stratabound pyrite-rich layer 4.27 m thick, in chemical sediments.Gold values encountered, 1945, between 105.03 m and 109.30 m in ddh #19: 105.56-107.77 M assayed 2.49 opt Au initially and 3.26 opt Au on re-assay. GRADE 1972 - 2 DDH;S TO NORTHEAST: LESS THAN 0.005 OPT AU. 2003. Goldcorp took multiple samples, highest assay returned 4.91 ppm Au


Sep 30, 2020 (Therese Pettigrew) - DDH PB12-032 returned up to 0.874 ppm Au over 1.01 m from pyrite-filled fractures, and 0.847 ppm Au over 1.05 m from a magnetite-bearing dolostone with pyrite stringers. BIFs at the bottom of the same hole returned up to 0.667 ppm Au over 1.85 m. DDH BL12-033 returned up to 0.851 ppm Au over 1 m from a contact between a sandstone and dolostone (Assessment report 20000009268).



Alteration Comments

Dec 07, 2005 (K R Kettles) - The host rocks contain biotite, and chlorite, and may possibly be silicified.




Mineral Record Details

References

File - Resident Geologist files Ball #9, 56

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: 119-120  Date: 1987

Author: Durocher M.E., Burchell P.S., Andrews A.J.

Publisher Name: Ontario Geological Survey

Location:


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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office