Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52F08NW00040

Record: MDI52F08NW00040

General

Mineral Record Identification
Record Name(s) Kawashegamuk Lake Fluorite Occurence - 1991
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1984-Feb-02
Date Last Modified 2022-Jun-13
Created By
Revised By

Commodities

Primary Commodities: Molybdenum, Fluorite, Silica Sand

Secondary Commodities: Corundum, Tungsten



Location

Township or Area: Kawashegamuk Lake Area

Latitude: 49° 27' .13"    Longitude: -92° 17' .53"

UTM Zone: 15    Easting: 551934.089   Northing: 5477732.724    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52F08NW

Point Location Description: PROPERTY (OCCURRENCE)

Location Method: Conversion from MDI

Access Description: The property is located approximately 50 km east of Dryden and 19 km south of Borup's Corners. The property is accessed by: taking Highway 603 south from Highway 17 at Borup's Corners, for 14 km; then south-east along an old Canadian Pacific Forest Products hauling road for 5 km. The various showings are accessed by means of recently constructed bulldozer trails which traverse eastward from this latter road.



Exploration History

The area has been extensively explored for gold in the past. There are numerous gold occurrences, prospects and past producers located nearby. No previous exploration has evaluated the industrial mineral potential of the area: 1991 to 1994. The occurrence was discovered by A. Glatz and A. Kozowy. A total of 136 claim units covering 8 miles of strike-length were staked. Prospecting, stripping and sampling was conducted on the property. 1994 A. Glatz and A. Kozowy still hold the property.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
63A.478 52F10NW0038 52F10NW0038

Geology

Province: Superior

Geological Age: Archean  



Geology Comments

Dec 07, 2005 (R Degagne) - The occurrence lies within a contact zone between the Revell Batholith and the Stormy Lake greenstone belt. The zone roughly parallels the contact with the batholith and contains a mixture of granitic and intensely altered volcanic material. Large amounts of quartz, fluorite and sericite are present at numerous locations on the property.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Granite 1 Qtz;Ser Near
Mafic Schist 2 Ser-Ms-Fl, +/- Py Schistose Host

Lithology Comments

Dec 07, 2005 (R Degagne) - The occurrence lies within a contact zone between the Revell Batholith and the Stormy Lake greenstone belt. The zone roughly parallels the contact with the batholith and contains a mixture of granitic and intensely altered volcanic material. Large amounts of quartz, fluorite and sericite are present at numerous locations on the property.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1FluoriteEconomicOre
2SilicaEconomicOre
3WolframiteEconomicOre
4CorundumEconomicOre
5MolybdeniteEconomicOre
1SericiteEconomicGangue
2MuscoviteEconomicGangue
3ChloriteEconomicGangue
4PyriteEconomicGangue
FluoriteAlterationGreisenization1Replacement
SericiteAlterationSericitization2Replacement
ChloriteAlterationChloritic3Replacement
MuscoviteAlterationGreisenization4Replacement
FuchsiteAlterationCarbonatization5Disseminated

Mineralization Comments

Dec 07, 2005 (R Degagne) - The occurrence has been exposed through backhoe stripping but it wasn't possible to get a true width of the mineralization. The fluorite mineralization is said to extend over 4 km. Five showings have been excavated over the 4 km strike length. Showing No. 5: A 46 m x 20 m area has been exposed. Two rock types occur, a massive quartz-rich granitic looking rock and a fine-grained sericite-muscovite-fluorite +/- pyrite schist. The schistose rock presumably is the remnants of the host volcanic rocks which have been intensely altered. Showing No. 4: This showing is a small outcrop of granite with sericite on the side of a ridge. Fluorite is seen along with trace pyrite. Apparently A. Glatz obtained 0.15% W from assays. A bull white, barren, 3 m+ quartz vein is located south of the showing. Showing No. 3: The showing consists of a large stripped outcrop. Fluorite is seen throughout the outcrop up to 1-2% with localised variations. The fluorite occurs primarily within the sheared sericitic schist. To the south is a large mass (25 m diameter) of apparently barren quartz. Showing No. 2: This is the highest grade showing and is seen as a 1.5 m wide zone of fluorite-sericite schist in contact with a 1 m wide quartz vein. Up to 40% fluorite is seen in the zone over a strike length of 25 m. A quartz vein is exposed over 10.7 m in the trench and contains chloritic xenoliths. The xenoliths represent fragments of the host metavolcanic rocks. Showing No. 1: This showing is exposed on a cut base-line, it is the site where fluorite was first discovered by the property owners. A quartz-sericite-chlorite-fluorite schist is in contact with a 2-3 m wide quartz vein which strikes 310 degrees. Generally, fluorite comprises up to 5% of the rock, however, higher-grade sections are seen. A. Glatz reported molybdenite and fuchsite at this site (which were observed) and corundum ( not seen). Fine-grained pyrite (trace) was also seen.



Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Contact

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Tabular 4000

Site Visit Information

Date: Dec 17, 1996

Geologist: R Degagne

Notes: Visited in June 1992 by P. Hinz and R. M. Landry (OGS OFR 5889, 1994). CHEMICAL ANALYSIS: Sample No.: IM-92-12 2.60 F%, < 2 Sn ppm, 10 W ppm. IM-92-13 1.71 F%, < 2 Sn ppm, 20 W ppm. IM-92-14 0.79 F%, < 2 Sn ppm, 590 W ppm. IM-92-15 2.71 F%, < 2 Sn ppm, 30 W ppm. IM-92-16 1.24 F%, < 2 Sn ppm, 10 W ppm. IM-92-17 0.11 F%, < 2 Sn ppm, 10 W ppm. IM-92-18 1.94 F%, < 2 Sn ppm, 270 W ppm. IM-92-19 3.69 F%, < 2 Sn ppm, 140 W ppm. Showing No. 5: IM-92-12 - massive granitic rock. IM-92-13 - ser-musc-fl schist. Showing No. 4: IM-92-14 - qtz-ser-fl schist. Showing No. 3: IM-92-16 - sheared volcanics. IM-92-17 - massive granitic rock. Showing No. 2: IM-92-15 - high-grade fluorite float. Showing No. 1: IM-92-18 - sheared volcanics. IM-92-19 - quartz. Analyses by Chemex Labs, Ltd.



References

Map - Geological series, Precambrian geology of the Kawashegamuk Lake area, eastern part, Kenora District

Publication Number: P2570 Scale: 1:15,840    Date: 1982

Author: Kresz D.U., Blackburn C.E., Fraser F.B.

Publisher Name: Ontario Geological Survey

Location:


Mono - Molybdenum deposits of Ontario

Publication Number: MDC007 Page: 41  Date: 1968

Author: Johnston F.J.

Publisher Name: Ontario Dept. of Mines

Location:


Book - Kawashegamuk Lake area, District of Kenora

Publication Number: MP096.005 Page: 21  Date: 1997

Author: Blackburn C.E.

Publisher Name: Ontario Geological Survey

Location: Kenora RGP


Book - Industrial Mineral Geologist's files, Thunder Bay

Publication Number: IMF Date:

Author:

Publisher Name:

Location: Thunder Bay RGP


File - Kenora Resident Geologist Mineral Deposit Files

Publication Number: RGF Date:

Author:

Publisher Name:

Location: Kenora RGP


Mono - Industrial Mineral Occurrences and Deposits in Northwest Ontario

Publication Number: OFR5889 Page: 19-22  Date: 1994

Author: Hinz P., Landry R.M.

Publisher Name: Ontario Geological Survey

Location:


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For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office