Ontario Geological Survey
Permanent Link to this Record:
MDI52K07SW00002
| Record Name(s) | Cn Trax -3 - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1996-Dec-04 |
| Date Last Modified | 2022-Jul-29 |
| Created By | |
| Revised By |
Primary Commodities: Granite
Township or Area: Glider Lake Area
Latitude: 50° 15' 49.95" Longitude: -92° 57' 12.62"
UTM Zone: 15 Easting: 503313.789 Northing: 5567971.335 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52K07SW
Point Location Description: Outcrop
Location Method: Data Compilation
Access Description: THIS SITE IS LOCATED 16 KM EAST OF HIGHWAY 105 ON THE CN TRAX ROAD, WHICH IS LOCATED 32 KM SOUTH OF EAR FALLS. THE SITE IS ACCESSIBLE FROM EAR FALLS BY A GRAVEL ROAD.
The area has undergone little exploration or prospecting for granite dimension stone. 1994: portions of this occurrence are currently held by Nelson Granite and the Economic Development Office of Ear Falls.
Province: Superior
Subprovince: Winnipeg River
Terrane: Winnipeg River
Geological Age: Archean
Dec 07, 2005 (W Bellinger) - The area is underlain by rocks of the Winnipeg River (to the south), the English River (the centre) and Uchi Lake (to the north) subprovinces. The Winnipeg River Subprovince is composed of granitic intrusives and gneissic domes. The English River Subprovince consists of primarily metasedimentary migmatitic rocks. The Uchi Subprovince contains metasedimentary and metavolcanic belts with gneissic-intrusive complexes between the belts.
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 | Fine Grained | Host |
|---|
Dec 07, 2005 (W Bellinger) - Raoul (1992) provided a petrographic description of the stone: The rock is a fine brown granite. It is very uniform in texture with rare orthoclase phenocrysts (2 cm). A reddish stain (hematite) is concentrated along fractures, but this may be a surface feature. There is a minor mica (biotite) and some chlorite-biotite xenoliths in outcrop. The mineral composition is: orthoclase (35%), plagioclase (27%), quartz (35%), and biotite (3%). JOINTING: Jointing observed during mapping was widespread and of variable orientation. Some large sections were mapped and found to be free of joints. Sheet jointing was noted at numerous locations and was between 0.7 and 5.0 m wide. COLOUR: The rock is a brown granite. TESTURE: The stone is fine grained.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Orthoclase | Economic | Ore | ||||
| 2 | Plagioclase | Economic | Ore | ||||
| 3 | Quartz | Economic | Ore | ||||
| 1 | Biotite | Economic | Gangue | ||||
| Hematite | Alteration | Hematization | 1 |
Dec 07, 2005 (W Bellinger) - Raoul (1992) provided a petrographic description of the stone: The rock is a fine brown granite. It is very uniform in texture with rare orthoclase phenocrysts (2 cm). A reddish stain (hematite) is concentrated along fractures, but this may be a surface feature. There is a minor mica (biotite) and some chlorite-biotite xenoliths in outcrop. The mineral composition is: orthoclase (35%), plagioclase (27%), quartz (35%), and biotite (3%).
Map - Geological series, Operation Kenora-Ear Falls, Perrault Lake sheet, District of Kenora
Publication Number: P1201 Scale: 1:63,360 Date: 1976
Author: Breaks F.W., Bond W.D., Westerman C.J., Desnoyers D.W.
Publisher Name: Ontario Division of Mines
Location:
Mono - Dimensional Stone Occurrences and Deposits in Northwest Ontario
Publication Number: OFR5890 Date: 1994
Author: Hinz P., Landry R.M., Gerow M.C.
Publisher Name: Ontario Geological Survey
Location:
File - Industrial minerals geologist files
Publication Number: IMF Date: 1996
Author: Resident Geologist Staff
Publisher Name:
Location: Thunder Bay RGP
Book - BUILDING STONE POTENTIAL,EAR FALLS AREA, UNPUB RPT, ECON. DEV OFFICE
Publication Number: UNP RPT Date: 1992
Author: Raoul, A.J.
Publisher Name:
Location: ECON. DEV. OFFICE
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For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office