Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001152

Record: MDI000000001152

General

Mineral Record Identification
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

Commodities

Primary Commodities: Limestone (Crushed Stones)



Location

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.



Exploration History

1965: F. Koosel drilled 3 DDH totalling 25.8 m.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
10 52H06SW0016 52H06SW0016

Geology

Province: Southern

Subprovince: Nipigon Basin

Formation Group: Sibley Group

Geological Age: Paleoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Limestone 1 Is

Lithology Comments

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).




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1CalciteEconomicOre
2BruciteEconomicOre

Mineralization Comments

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).



Mineral Record Details

References

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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Ministry Contact Information

For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office