Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52E10SW00002

Record: MDI52E10SW00002

General

Mineral Record Identification
Record Name(s) Crown Point - 1899
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1986-Aug-28
Date Last Modified 2022-Mar-03
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Glass

Latitude: 49° 36' 35.7"    Longitude: -94° 58' 1.17"

UTM Zone: 15    Easting: 357898.61   Northing: 5497119.27    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52E10SW

Point Location Description: AMIS location, map in Assessment report 52E10SW8582

Location Method: Data Compilation



Exploration History

1899-1900: Crown Point Mining Company Ltd. conducted trenching and sank test pits and 3 shafts. The main shaft reached a vertical depth of 42 m with 55 m of drifting on the 18m Level. 1904: Sold to Black Cat Mining Company. 1968: Olympia Mines conducted ground magnetometer and horizontal loop EM surveys, and drilled 7 DDH. 1972: C.J. Kuryliw carried out mapping and a ground magnetometer survey. 1978: Long Lac Mineral Exploration Ltd. carried out sampling. 1980: R. Fairservice staked the property and optioned it to Sherritt Gordon Mines Ltd., who carried out geological mapping, prospecting, trenching, sampling, and a VLF-EM survey. 1983: A.P. Pryslak carried out EM and magnetic surveys. 1998: Royal Oak Mines Inc. carried out mapping and sampling. 2010: Everton Resources Inc. carried out a ground magnetometer survey.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.3671 52E10SW8582 52E10SW8582
2.18653 52E10SW2002 52E10SW2002
2.1008 52E10SW8588 52E10SW8588
2.5474 52E10NW9492 52E10NW9492
2.44650 20000005946 20000005946
2.44372 20000005912 20000005912

Geology

Province: Superior

Subprovince: Wabigoon

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Basalt Adjacent
Mylonite/Fault Gouge/Pseudotachylite 2 Shear Zone Contains
Vein 3 Contains
Quartz Diorite 4 Contains

Lithology Comments

Jan 13, 2020 (Therese Pettigrew) - An east-trending fault zone has brought quartz diorite of the Canoe Lake stock into contact with north-northeast-trending mafic metavolcanic flows and a fine-grained, felsic fragmental unit. Incorporated within the zone are dextrally offset slices of the mafic rocks. These include a thin porphyritic gabbro, with large (up to 25 mm), saussuritized feldspar phenocrysts, a fine-grained basaltic unit, and a medium-grained gabbroic unit. These units probably correspond to similar units on the Sirdar Peninsula to the west. A strong positive magnetic anomaly is coincident with this fault zone (Davies and Smith, 1988).




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
2PyriteEconomicOre

Mineralization Comments

Jan 13, 2020 (Therese Pettigrew) - Gold mineralization on the property is restricted to thin, weakly to moderately silicified, weakly pyritiferous, east-trending shear zones within quartz diorite, and in a fault slice consisting of fine-grained basalt which is in contact with porphyritic gabbro (Davies and Smith, 1988). Test pits and three shafts were sunk on quartz veins along a fault-controlled contact between quartz-diorite and basalt (Assessment report 52E10SW8557). A sample collected from a 20-cm-wide shear zone between the main and vent shafts returned a value of 0.06 oz/t Au (2.05 g/t Au). The shear zone is in a quartz diorite. Southeast of the vent shaft a shear zone 14 metres wide in the same quartz diorite was trenched and sampled (T1). An assay of .02 oz/T over 9 metres was obtained • and the rock contains some large (1 cm) cubes of pyrite (Assessment report 52E10SW8582).



Mineral Record Details

Production Data
Year Tonnes Commodities Reference Comment
1900 136 Gold 3428 Grams
Assessment report 52E10SW8557 3,428 g Au produced from 150 tons ore

References

Mono - Gold deposits of the Kenora-Fort Frances area, districts of Kenora and Rainy River

Publication Number: MDC016 Scale:     Date: 1976

Author: Beard R.C., Garratt G.L.

Publisher Name: Ontario Division of Mines

Location:


Part - Mines of northwestern Ontario

Publication Number: ARV09.003 Scale:     Date: 1998

Author: Bow J.A.

Publisher Name: Ontario Bureau of Mines

Location:


Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay

Publication Number: MDC013 Scale:     Date: 1971

Author: Ferguson S.A., Groen H.A., Haynes R.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


Part - Mines of northwest Ontario, parts 1 and 2

Publication Number: ARV10.004 Scale:     Date: 1998

Author: Bow J.A., Carter W.E.H.

Publisher Name: Ontario Bureau of Mines

Location:


MonoMap - Geology of the Shoal Lake-Western Peninsula area, District of Kenora

Publication Number: OFR5242 Scale:     Date: 1978

Author: Davies J.C.

Publisher Name: Ontario Geological Survey

Location:


Mono - The geological setting of gold occurrences in the Lake of the Woods area

Publication Number: OFR5695 Scale:     Date: 1988

Author: Davies J.C., Smith P.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