Ontario Geological Survey
Permanent Link to this Record:
MDI000000001152
| Record Name(s) | Koosel Limestone - 1965, Wabikon Lake Marble Occurrence - 1965 |
|---|---|
| Related Record Type | |
| Record Status | Occurrence |
| Date Created | 2011-Mar-23 |
| Date Last Modified | 2022-Jan-05 |
| Created By | J Scott |
| Revised By | Therese Pettigrew |
Primary Commodities: Limestone (Crushed Stones)
Township or Area: Wabikon Lake Area
Latitude: 49° 20' 4.19" Longitude: -89° 21' 38.62"
UTM Zone: 16 Easting: 328497 Northing: 5467322 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52H06SW
Point Location Description: assessment work confirmed with Google Earth
Location Method: Other
Access Description: Access can be gained through a gravel pit road, east of Highway #527, which terminates within 365 m (1200 ft) of the south end of Wabikon Lake. An old road joins the most easterly gravel pit with the lake and from that point a trail follows the west shore to the Lundmark claim.
1965: F. Koosel drilled 3 DDH totalling 25.8 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 10 | 52H06SW0016 | 52H06SW0016 |
Province: Southern
Subprovince: Nipigon Basin
Formation Group: Sibley Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Limestone | 1 | Is |
|---|
Jan 19, 2018 (Therese Pettigrew) - Up to 5.2 m of white to grey brucitic limestone exposed on the SW shore of Wabikon Lake (AFRI 52H06SW0016). This carbonate showing has limited exposure. The showing consists of a white to reddish-white limestone of the Rossport Formation of the Sibley Group. The red-tinted limestone occurs at the lake shore, with the best exposure having a thickness of approximately 3 m (10 ft) and grading upward into the white limestone, however, exposure is limited to three small outcrops. Just south of the main showing and for several hundred metres south along the west shore of Wabikon Lake, calcareous mudstones occur intercalated with shale. This unit is horizontally banded, with individual layers varying from white to grey to red. The shale is invariably dark grey to black (OFR5566).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Calcite | Economic | Ore | ||||
| 2 | Brucite | Economic | Ore |
Jan 19, 2018 (Therese Pettigrew) - One sample submitted in 1964 by F. Koosel to the Department of Mines laboratory for analysis produced the following results: Sample No. 7905: SiO2 1.80%, Fe2O3 0.18%, Al203 0.80%, CaO 35.10%, MgO 22.65%. An X-ray examination showed the sample to consist of calcite and brucite with minor silicate minerals, including serpentine and montmorillonite. The analysis was then recalculated to provide the following normative mineral composition: Calcite (CaCOs) 62.70%, Brucite (Mg(OH)2) 32.84%, Silicate 2.78% (OFR5566).
Mono - Lime resources of the Thunder Bay area
Publication Number: OFR5566 Scale: Date: 1985
Author: Speed A.A., Mason J.K., Vos M.A.
Publisher Name: Ontario Geological Survey
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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office