Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI53C13SE00070

Record: MDI53C13SE00070

General

Mineral Record Identification
Record Name(s) Arrowsmith Occurrence No. 1 - 1967
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1985-May-29
Date Last Modified 2022-Sep-20
Created By
Revised By

Commodities

Primary Commodities: Zinc, Lead, Silver, Gold



Location

Township or Area: Setting Net Lake Area

Latitude: 52° 51' 26.23"    Longitude: -93° 39' 3.7"

UTM Zone: 15    Easting: 456165.64   Northing: 5856593.37    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 53C13SE

Point Location Description: General

Location Method: Data Compilation

Access Description: 200 km North of Red Lake



Exploration History

The exploration history of the area is summarized by Walford and Cullen (2006). 2007: Anaconda Gold Corp. conducted a prospecting program.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.37754 20000002839 20000002839
22, RL 1968 53C/NW #1 53C13SE0007 53C13SE0007
2.4653, RL2751 53C13SE0002 53C13SE0002
2.6253, RL2758 53C13NE0010 53C13NE0010
2.4653 53C13SE0002 53C13SE0002

Geology

Province: Superior

Subprovince: Sachigo

Terrane: North Caribou

Belt: Favourable Lake

Geological Age: Mesoarchean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Felsic lava flow-unsubdivided 1 Contains

Lithology Comments

Nov 21, 2014 (Mark Puumala) - The Arrowsmith No. 1 occurrence is described by Ayres (1974) as a sphalerite-galena occurrence hosted in felsic tuff. The felsic metavolcanics are reported to be foliated (070/70) and mineralized with 1 to 2% pyrite, with local pyrite concentrations of up to 15%. Mazurski (1981) reported that these rocks are light grey weathering, fine-grained and cherty, and that they are part of the same formation that hosts the nearby Berens River Mine.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1SphaleriteEconomicOre
2GalenaEconomicOre
3PyriteEconomicOre
4PyrrhotiteEconomicOre

Mineralization Comments

Nov 21, 2014 (Mark Puumala) - The sphalerite and galena mineralization occurs at the south end of a trench and consists of massive, irregular veins up to 5 cm wide. The veins are reported to have variable orientations, but occur within an approximately 60 cm wide zone that strikes approximately 070. However, Mazurski (1981) reports that the mineralization consists of sphalerite and galena lenses that occur parallel to a pervasive 045/56 rock fabric. Mazurski (1981) also reports the presence of a schistose layer of intermediate-composition rock, whose contact with the felsic tuff has been folded around an axial plane that parallels the 045/56 schistosity. This fold is reported to plunge southwest. The mineralized zone is reported by Ayres (1974) to pinch out immediately to the west of the trench, but it is open to the east, where it is covered by overburden. The zone of mineralization is reported to contain approximately 3 to 5% sphalerite and 1 to 2% galena. However, the wall rocks adjacent to this zone only contain rare disseminated sphalerite. Up to 7.5 cm wide unmineralized glassy quartz veinlets that strike approximately 015 are reported to occur immediately southwest of the occurrence. Ayres (1974) reported that the occurrence is located approximately 60 m south of the east-trending Setting Net Creek East fault. The north-trending Setting Net Lake fault is located approximately the same distance to the west. Grab sample assay results of up to 15.6% Zn, 4.33% Pb, 3.1 oz/ton Ag and 0.02 oz/ton Au were reported from this occurrence by Ayres (1974), while Mazurski (1981) reported grab sample assays of up to 18.4% Zn, 3.23% Pb, 0.36 oz/ton Ag, and 0.63 oz/ton Au. However, a diamond drill hole advanced at this location in 1968 by W.C. Arrosmith is reported by Ayres to have been unsuccessful in attempting to intersect the mineralized zone at depth. 2007 Prospecting report completed, no significant assays reported. 2011: No new information



Mineral Record Details

Classification
RankClassification            
1 Vein (Polymetallic)
Characteristics
Rank Characteristic            
1 Vein

References

Map - Trout Lakes, Kenora District

Publication Number: M2270 Scale: 1:31,680    Date: 1973

Author: Ayres L.D.

Publisher Name: Ontario Division of Mines

Location:


MonoMap - Geology of the Trout Lakes area, District of Kenora (Patricia Portion)

Publication Number: R113 Page: 146-149, 151  Date: 1974

Author: Ayres L.D.

Publisher Name: Ontario Division of Mines

Location:


Map - Trout Lakes area, South Trout Lake sheet, District of Kenora (Patricia Portion)

Publication Number: P0422 Scale: 1:15,840    Date: 1997

Author: Ayres L.D.

Publisher Name: Ontario Dept. of Mines

Location:


Book - Technical Report on MERC International Minerals Inc.`s Borthwick Lake Property.

Publication Number: RL5053 Date:

Author: Walford, W. and Cullen, D. 2006.

Publisher Name:

Location: Red Lake RGP


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