Ontario Geological Survey
Permanent Link to this Record:
MDI52C11NW00012
| Record Name(s) | Rocky Islet Ballast Quarry - 1970, CNR Quarry - 1970 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2002-Jul-25 |
| Date Last Modified | 2022-Jul-28 |
| Created By | |
| Revised By |
Primary Commodities: Aggregate, Trap Rock
Secondary Commodities: Mineral Specimen
Township or Area: Stanjikoming Bay Area
Latitude: 48° 39' 52.58" Longitude: -93° 17' 7.21"
UTM Zone: 15 Easting: 478990.02 Northing: 5390212.03 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52C11NW
Point Location Description: Island on Rainy Lake, east of highway 11, near the east end of the bridge spanning Rainy Lake.
Location Method: Field Visit with GPS
Access Description: Island is 5 km northeast of Fort Frances and can be accessed via highway 11. The quarry is located on an island, east of highway 11, near the east end of the bridge spanning Rainy Lake.
pre-1970: CNR Railway - ballast pit in production.
Province: Superior
Subprovince: Wabigoon
Terrane: Western Wabigoon
Belt: Fort Frances-Mine Centre
Geological Age: Archean
Nov 18, 2016 (Andrew Tims) - In diorite and granite Epidote occurs as fine prismatic and granular aggregates in fractures in diorite. Bladed actinolite, white fibrous tremolite and "micro" cubes of pyrite are associated with epidote. Black tourmaline occurs as radiating prisms associated with epidote in diorite and associated with pyrite and magnetite in white granite. Goethite occurs as an earthy coating on the rocks.
| Rock Type | Rank | Composition | Texture | Relationship | Diorite | 1 | Diorite | Is |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 2 | Is |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 3 | Tourmaline | Economic And Alteration | Gangue | Tourmalinization | 1 | ||
| 1 | Epidote | Economic | Ore | ||||
| 2 | Actinolite | Economic | Ore |
| Rank | Classification |
|---|---|
| 1 | Industrial |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1970 | 234000 | MDC027 p. 1 | 234,000 m3 mined |
Mono - Building and ornamental stone inventory in the districts of Kenora and Rainy River
Publication Number: MDC027 Date: 1986
Author: Storey C.C.
Publisher Name: Ontario Geological Survey
Location:
Map - Kenora-Fort Frances, geological compilation series, Kenora and Rainy River districts
Publication Number: M2443 Scale: 1:253,440 Date: 1981
Author: Blackburn C.E., Beard R.C., Rivett A.S.
Publisher Name: Ontario Geological Survey
Location:
Publication - Rocks and minerals for the collector, Sudbury to Winnipeg; Geological Survey of Canada, Miscellaneous Report 49
Publication Number: GSC MR 49 Page: 161-162 Date: 1991
Author: Sabina, A P
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/132238
MonoMap - Geology of the Rainy Lake area, District of Rainy River
Publication Number: R115 Page: 29-33 Date: 1974
Author: Harris F.R.
Publisher Name: Ontario Division of Mines
Location:
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For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office