Ontario Geological Survey
Permanent Link to this Record:
MDI53C13SE00070
| 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 |
Primary Commodities: Zinc, Lead, Silver, Gold
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
The exploration history of the area is summarized by Walford and Cullen (2006). 2007: Anaconda Gold Corp. conducted a prospecting program.
| 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 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Belt: Favourable Lake
Geological Age: Mesoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Felsic lava flow-unsubdivided | 1 | Contains |
|---|
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.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Sphalerite | Economic | Ore | ||||
| 2 | Galena | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 4 | Pyrrhotite | Economic | Ore |
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
| Rank | Classification |
|---|---|
| 1 | Vein (Polymetallic) |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
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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