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Ontario Geological Survey
Permanent Link to this Record:
MDI52K15NE00014
| Record Name(s) | Wennesaga -8 Occurrence - 1992 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1996-Dec-14 |
| Date Last Modified | 2022-Aug-05 |
| Created By | |
| Revised By |
Primary Commodities: Granite
Township or Area: Slate Lake Area
Latitude: 50° 56' .67" Longitude: -92° 33' 30.62"
UTM Zone: 15 Easting: 531023.632 Northing: 5642524.766 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52K15NE
Point Location Description: Outcrop
Location Method: Data Compilation
Access Description: GENERAL LOCATION: This site is located 63.1 km northeast of Ear Falls on the Wennesaga Road. ACCESS: The site is accessible from Ear Falls by an all-weather logging road.
The area has undergone little exploration or prospecting. 1994: this occurrence was held by the Economic Development Office of Ear Falls.
Province: Superior
Subprovince: Winnipeg River
Terrane: Winnipeg River
Geological Age: Archean
Dec 07, 2005 (W Bellinger) - Hinz and Lucas (1992) described the general geology: 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 | Granitoid-Unsubdivided | 1 | Med Gr | Host |
|---|
| 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 | Hornblende | Economic | Gangue |
Dec 07, 2005 (W Bellinger) - A pinkish-brown (tan), medium-grained 'granite'. The body is very uniform in texture and colour with black, elongated crystals of amphibole (hornblende). The mineral constituents are: orthoclase (70%), plagioclase (15%), quartz (5%) and hornblende (10%). The outcrop was traversed several times and all samples were identical in composition and texture. JOINTING: Raoul (1992) provided a petrographic description of the stone: The northern and central portions of the area mapped were massive, with widely spaced (>5 m) joints (Figure 9). Two main joint directions were measured, 170 to 190 degrees and 234 degrees. Sheet joints ranged in thickness from 0.5 to 2.0 m. In the southern portion jointing ranged from 048 to 050 degrees and 330 to 340 degrees and were also widely spaced, sheeting was not observed. COLOUR: In outcrop the stone displays a pinkish-brown colour. When polished the stone is pink with a slight hint of brown (see Photo 10, Appendix A). TEXTURE: The stone has an equigranular, medium-grained texture. Typical grain sizes are no larger than 6 mm.
Map - Geological series, Operation Kenora-Ear Falls, Papaonga-Wapesi lakes sheet, District of Kenora
Publication Number: P1200 Scale: 1:63,360 Date: 1997
Author: Breaks F.W., Bond W.D., Stone D., Harris N., 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:
Publisher Name:
Location: Kenora RGP
Book - BUILDING STONE POTENTIAL,EAR FALLS AREA, UNPUBLISHED REPORT
Publication Number: UNP RPT Date: 1992
Author: Raoul, A.J.
Publisher Name:
Location: ECON DEV OFFICE, EAR FALLS
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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office