Ontario Geological Survey
Permanent Link to this Record:
MDI42C01NW00010
| Record Name(s) | Manitowik Lake Occurrence - 1944 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-Sep-08 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Bird
Latitude: 48° 12' 17.33" Longitude: -84° 19' 32.89"
UTM Zone: 16 Easting: 698684.28 Northing: 5342522.82 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C01NW
Point Location Description: Shear at north end of Narrow Lake (local name)
Location Method: Data Compilation
Access Description: The site is accessible by traversing along the portage between Manitowik Lake and Narrow Lake. Access to boat launches for Manitowik Lake is via highway 101 East of Hawk Junction.
1941-44: Leitch Gold Mines - prospecting, sampling. 1983: International Corona - mapping, sampling. 1988: Orequest Consultants - sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| BIRD 0012 | 42C01NW8704 | 42C01NW8704 |
| Keating-0017 | 42C07SW0031 | 42C07SW0031 |
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) - Supracrustal rocks in the immediate Goudreau-Lochalsh district consist of cycle 2 felsic to intermediate, pyroclastic metavolcanics which are capped by pyrite-bearing ironstone. To the north are pillowed , massive and schistose, mafic to intermediate metavolcanics and minor intercalations of mafic pyroclastic rocks of cycle 3. Several medium to coarse grained quartz dioritie to dioritie sills and/or dikes intrude all of the metavolcanic rocks. Along the northern margin of the supracrustal sequence, separating cycle 3 mafic metavolcanic rocks from the external granitoids, are thinly-bedded metasedimentary rocks with iminor intercalations of chert-magnetite ironstone. The showing lies close to the intersection between the Maskinonge Lake and the Manitowik Lake faults. The Maskinonge Lake Fault lies adjacent to the showing. Rocks along this fault structure are locally brecciated and silicified and contain anomalous gold values. The gold mineralization found with this fault may occur within a subparallel fault or shear to the main break.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Intermediate Tuff | 2 | Tuff | Sheared | Host |
Dec 07, 2005 (A Wilson) - Mapping by Corona in 1983 indicated that narrow (3-10 cm wide) quartz veins are found within massive to sheared intermediate flows and tuffs.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Pyrrhotite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - Leitch Gold Mines noted the presence of a shear with a few quartz stringers and obtained low values from the showing. Samples collected by International Corona in 1983 also yielded low assay results.
File - Resident Geologist files WP Bird-02, Bird 0013
Publication Number: Date:
Author:
Publisher Name:
Location: SSM RGP office
Map - Precambrian Geology, Bird Township
Publication Number: OFM0218 Scale: 1:15,840 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Folio - Bird Township, District of Algoma
Publication Number: GDIF140 Date: 1997
Author: Sault Ste Marie RGO
Publisher Name: Ontario Geological Survey
Location:
Map - Goudreau-Lochalsh area, District of Algoma, Ontario
Publication Number: ARM49G Scale: 1:31,680 Date: 1997
Author: Bruce E.L.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 128 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
Book - Gold Occurrences of the Wawa-Missinabie Area, unpublished report
Publication Number: Robinson Page: 122 Date: 1983
Author: Robinson, D.
Publisher Name:
Location: Timmins RGP
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: 17 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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