Ontario Geological Survey
Permanent Link to this Record:
MDI42C01NW00036
| Record Name(s) | Slate Lake Gold Showing - 1943, Slate Lake Gold Occurrence - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-Jul-22 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Aguonie
Latitude: 48° 12' 7.57" Longitude: -84° 27' 35.92"
UTM Zone: 16 Easting: 688726.12 Northing: 5341883.15 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C01NW
Point Location Description: Silicified zone on NW shore of Slate Lake
Location Method: Data Compilation
Access Description: Access to the area is by fixed wing or helicopter only.
1943-45: Leitch Gold Mines - prospecting, sampling. 1983-88: International Corona, Mascot Gold Mines - several attempts were made by various companies to relocate this showing, an unexplained conductor was examined on the east side of Slate Lake by both companies.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| BIRD 12 | 42C01NW8704 | 42C01NW8704 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - The occurrence lies within the western extension of the Cradle Lake Deformation Zone. This domain is a ductile-brittle zone of subparalel, dextral oblique-slip high-strain zones developed within strongly altered and deformed felsic to intermediate metavolcanic rocks. The NNW Herman Lake Fault lies just to the east of the occurrence.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Tuff | Sheared | Host |
|---|---|---|---|---|
| Schist-Unsubdivided | 2 | Metasediment | Host |
Dec 07, 2005 (A Wilson) - The showing is described as a banded silica replacement of what appears to be a slate or tuff bed. This zone occurs in and parallel to a belt of sheared tuffs, fragmentals and thin flows. The rocks surrounding Slate Lake were mapped by the OGS as clastic metasediments (wacke and lithic wacke) and chlorite schist. The silicified zone is 5 - 15 feet wide and averages 10 feet for the 140 feet length of the shear. Several small quartz stringers fill fractures within the zone.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| Silica | Alteration | Silicification | 1 | Medium | Replacement |
Dec 07, 2005 (A Wilson) - Grab samples collected in 1943 returned values of $2.10 per ton gold. Samples collected from a channel sampling program in 1944 returned negligible gold values.
| Rank | Classification |
|---|---|
| 1 | Replacement |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 42.6 | 3 | 290 |
Map - Precambrian Geology, Aguonie Township
Publication Number: OFM0217 Scale: 1:15,840 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological compilation series, Wawa sheet, districts of Algoma and Sudbury
Publication Number: P0640 Scale: 1:126,720 Date: 1997
Author: Leahy E.J., Rupert R.J., Giblin P.E., Giguere J.F.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 115 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Aguonie, Bird, Finan and Jacobson Townships, District of Algoma
Publication Number: OFR5588 Page: 87 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Folio - Aguonie Township, District of Algoma
Publication Number: GDIF172 Date: 1997
Author: Sault Ste Marie RGO
Publisher Name: Ontario Geological Survey
Location:
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 21 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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