Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52K13NW00002

Record: MDI52K13NW00002

General

Mineral Record Identification
Record Name(s)	Heyson Red Lake - 1936
Related Record Type	Simple
Related Record(s)
Record Status	Occurrence
Date Created	1983-Mar-04
Date Last Modified	2022-Aug-05
Created By
Revised By

Commodities

Primary Commodities: Gold

Location

Township or Area: Heyson

Latitude: 50° 58' 11.04" Longitude: -93° 52' 23.62"

UTM Zone: 15 Easting: 438686.583 Northing: 5646821.988 UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52K13NW

Point Location Description: N/A

Location Method: Conversion from MDI

Exploration History

1936: Heyson Red Lake Gold Mines, Ltd. was incorporated to take over the property. Surface work was performed on the property. Around 1945, drilling was completed, but the number of holes and their depths were not recorded. In 1974, 2 holes were drilled totalling 107 m. By 1979 C. W. Peterson owned the property, which he optioned to Minorex in 1980. In 1980, stripping and trenching were performed, and geological and geophysical (C.E.M., Max-Min, magnetometer) surveys were completed.

Assessment Work on File

Assessment Work on File
Office File Number	Online Assessment File Identifier	Online Assessment File Directory
63.3141	52K13NW0025	52K13NW0025
2.3677	52K13NW0015	52K13NW0015

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Red Lake

Geological Age: Archean

Metamorphism Type: Regional

Metamorphism Grade: Amphibolite

Lithology

Lithology Data
Rock Type	Rank	Composition	Texture	Relationship
Mafic lava flow-unsubdivided	1	Basalt		Near
Quartz-Rich Granitoid	2			Adjacent
Mylonite/Fault Gouge/Pseudotachylite	3		Shear Zone	Contains
Vein	4	Quartz	Quartz Stringers And Veins	Host

Lithology Comments

Dec 07, 2005 (K R Kettles) - The property is underlain by mafic, intermediate and felsic metavlocanics which have been intruded by the Faulkenham Lake Granodiorite Stock, and a swarm of felsic and mafic dikes and plugs. The felsic metavolcanics consist mainly of massive rhyolitic flows and tuffs. On the northeastern end of Faulkenham Lake, a quartz-feldspar porphyry unit averaging 400 m in width is exposed and continues to the northeast for about 6 kilometres. Mafic metavolcanic units are narrow and discontinuous. Mafic dikes are common and intrude every rock type. A large number of narrow lamprophyre and gabbro dikes cut the quartz feldspar porphyry unit. All major units on the property strike east-west and dip steeply to the south.

Mineralization

Mineralization and Alteration
Rank	Mineral Name	Class	Economic Mineral Type
1	Gold	Economic	Ore
2	Arsenopyrite	Economic	Ore
3	Chalcopyrite	Economic	Ore
4	Pyrite	Economic	Ore
5	Pyrrhotite	Economic	Ore
1	Quartz	Economic	Gangue

Mineralization Comments

Dec 07, 2005 (K R Kettles) - The mineralized zone has a strike of N60 deg. E. It is at least 100 m in length with an exposed width (to the edge of the lake) of about 6 m. The zone occurs in a quartz-feldspar porphyry intrusive which is cut by narrow quartz veins and stringers. Mineralization consists chiefly of disseminated and massive pyrite and pyrrhotite with lesser amounts of chalcopyrite and probably small amounts of arsenopyrite. Four samples taken from different directions across six feet of the vein were reported to have given the following assay results,(sampled in 1937). 0.28 oz/ton (9.600 g/tonne) Au, 0.08 oz/ton (2.743 g/tonne) Au, 1.20 oz/ton (41.142 g/tonne) Au, 0.07 oz/ton (2.400 g/tonne) Au. More recent sampling (1981) returned a value of 0.08 oz/ton (2.743 g/tonne) Au as the best assay.

Mineral Record Details

References

File - Red Lake Resident Geologist files 1981 Heyson #55

Publication Number: AF RL 1981 Date: 1981

Author:

Publisher Name:

Location: Red Lake RGP

File - Red Lake Resident Geologist files 1985 Heyson #63