Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52F07NW00025

Record: MDI52F07NW00025

General

Mineral Record Identification
Record Name(s) Navimar Lake - 1915, Oro Plata - 1939, E.D. Pidgeon - 1915
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1980-Jul-24
Date Last Modified 2022-Dec-02
Created By
Revised By

Commodities

Primary Commodities: Molybdenum

Secondary Commodities: Bismuth



Location

Township or Area: Harper Lake Area

Latitude: 49° 26' 56.11"    Longitude: -92° 50' 20.8"

UTM Zone: 15    Easting: 511661.789   Northing: 5477374.356    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52F07NW

Point Location Description: Precise

Location Method: Conversion from MDI

Access Description: This property is situated on a small lake due east of Navimar Lake and west of Upper Manitou Lake, about 25 miles due south of Dryden station. (Historical Files F07NW00025, EMR#506362, Kenora Resident Geologist Office)



Geology

Province: Superior

Subprovince: Wabigoon

Terrane: Western Wabigoon

Belt: Eagle-Wabigoon-Manitou

Geological Age: Precambrian  



Lithology Comments

Feb 24, 2010 (C Ravnaas) - GRADE: 1.48% MO FROM BULK SAMPLE. It was staked in 1915 by Mr. E.D.G. Pidgeon, of Wabigoon. Beyond a little assessment work which yielded about 200 pounds of high grade samples, no further development was done in 1920". (V.L. Eardley-Wilmot, 1925, p. 77). Oro Plata Mining Corporation Limited in 1939 investigated the showing. A number of trenches 15 to 20 feet apart were excavated and a series of 25- foot samples taken. Assays of 24 of these returned only nils and traces of molybdenum. A bulk sample from a pit on the original find is reported to have averaged 1.48% molybdenum. The property at that time consisted of a group of 11 claims. The property was open for staking in December 1973 . A 30 m long, 3 to 4 m wide quartz vein containing minor amounts of feldspar and striking northwest within dioritic rocks hosts molybdenum mineralization. The vein contains lesser amounts of chlorite, orthoclase, bismuthinite, green and bronze coloured mica, and pyrite. The molybdenum is confined to a all portion of the vein and was not observed in the country rocks. The diorite occurs at the contact between granitic rocks of the Atikwa Batholith and mafic metavolcanics of the Superior Structural Province. (Historical Files F07NW00025, EMR#506362, Kenora Resident Geologist Office)




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1MolybdeniteEconomicOre
2BismuthiniteEconomicOre

Mineralization Comments

Feb 24, 2010 (C Ravnaas) - GRADE: 1.48% MO FROM BULK SAMPLE. It was staked in 1915 by Mr. E.D.G. Pidgeon, of Wabigoon. Beyond a little assessment work which yielded about 200 pounds of high grade samples, no further development was done in 1920". (V.L. Eardley-Wilmot, 1925, p. 77). Oro Plata Mining Corporation Limited in 1939 investigated the showing. A number of trenches 15 to 20 feet apart were excavated and a series of 25- foot samples taken. Assays of 24 of these returned only nils and traces of molybdenum. A bulk sample from a pit on the original find is reported to have averaged 1.48% molybdenum. The property at that time consisted of a group of 11 claims. The property was open for staking in December 1973 . A 30 m long, 3 to 4 m wide quartz vein containing minor amounts of feldspar and striking northwest within dioritic rocks hosts molybdenum mineralization. The vein contains lesser amounts of chlorite, orthoclase, bismuthinite, green and bronze coloured mica, and pyrite. The molybdenum is confined to a all portion of the vein and was not observed in the country rocks. The diorite occurs at the contact between granitic rocks of the Atikwa Batholith and mafic metavolcanics of the Superior Structural Province. (Historical Files F07NW00025, EMR#506362, Kenora Resident Geologist Office)



Mineral Record Details

References

Publication - Molybdenum in Canada Part 2 : Molyfile; Geological Survey of Canada, Economic Geology Report 33

Publication Number: Econ Geol 33 Page: 89  Date: 1982

Author: Kirkham, R V; McCann, C; Prasad, N; Soregaroli, A E; Vokes, F M; Wine, G

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/109258


MonoMap - Geology of the Upper Manitou Lake area, District of Kenora

Publication Number: R189 Page: 64  Date: 1979

Author: Blackburn C.E.

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