Ontario Geological Survey
Permanent Link to this Record:
MDI31M05SE00095
| Record Name(s) | Fred Giroux - 1916, Giroux Silver-Cobalt Deposit - 1916 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1980-Aug-29 |
| Date Last Modified | 2023-Aug-23 |
| Created By | |
| Revised By |
Primary Commodities: Cobalt, Silver
Secondary Commodities: Nickel
Township or Area: Lorrain
Latitude: 47° 15' 35.55" Longitude: -79° 34' 46.71"
UTM Zone: 17 Easting: 607458 Northing: 5235022 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05SE
Point Location Description: Shaft
Location Method: AMIS Site Visit
1916: Fred Giroux- sank a 15 m shaft on formerly patented claim; at 15 m level 7.3 m of crosscutting was done; 1949: Fred Giroux - DD-3.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.912 | 31M05SE0005 | 31M05SE0005 |
| 2.24017 | 31M05SE2043 | 31M05SE2043 |
| 2.20453 | 31M05SE2022 | 31M05SE2022 |
| 2.20473 | 31M05SE2021 | 31M05SE2021 |
| 2.20692 | 31M05SE2019 | 31M05SE2019 |
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate lava flow-unsubdivided | 1 | Hanging Wall |
|---|---|---|---|---|
| Vein | 2 | Cobalt | High-Grade Silver-Cobalt | Host |
| Mafic pillowed flow | 3 | Pillowed | Intrudes |
Aug 24, 2017 (A Wilson) - Nipissing diabase dips south-east under Cobalt Series conglomerate towards the Lorrain diabase basin in the northwest part of the claim. The Cobalt Series conglomerate strikes east-northeast with a shallow SSE dip. Hornblende syenite, feldspar porphyry and feldspathic dikes cut the metavolcanics. The dikesa are narrow, having a maximum width of 3 to 5 cm. The metavolcanics have been intruded by dibasic rocks. Biotite lamprophyre dikes also cut the metavolcanics, but could not be followed continuously. The sedimentary rocks of the Coleman Member overlie the metavolcanics. All of the above-mentioned rocks have been intruded by Nipissing quartz diabase.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Silver | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore |
Aug 24, 2017 (A Wilson) - The surface silver showing is in a vein two feet wide that was blasted out with the first round, and occasionally in the shaft sinking, silver was found in small quantities. The best assay from the drill core was 0.04 oz. Ag/t over 0.1 m. A high-grade silver and cobalt vein 3 m long and 25 cm wide was found in the vicinity of the shaft. In a pit about 270m northeast of the shaft of niccolite is reported to have been found. Surface drilling, assays up to 577 g/t Ag over 0.06 m.
| Rank | Classification |
|---|---|
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1916 | 16 | MDI |
File - Resident Geologist file CO-1470
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Map - Geological series, Lorrain Township, southern part, concessions 1 to 6, District of Timiskaming
Publication Number: P1559 Scale: 1:15,840 Date: 1978
Author: Lovell H.L., de Grijs J.W.
Publisher Name: Ontario Geological Survey
Location:
Mono - Lorrain Township, southern part, concessions 1 to 6, District of Timiskaming
Publication Number: MP051 Page: 12 Date: 1976
Author: Lovell H.L., de Grijs J.W.
Publisher Name: Ontario Division of Mines
Location:
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