Ontario Geological Survey
Permanent Link to this Record:
MDI42C01NW00009
| Record Name(s) | Swanson Lake Occurrence - 1944, Swanson Lake Gold Showing - 1983, Swanson Lake Shear - 1989 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-May-18 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Bird
Latitude: 48° 13' 9.38" Longitude: -84° 18' 53.58"
UTM Zone: 16 Easting: 699439.32 Northing: 5344157.83 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C01NW
Point Location Description: Island in central Swanson Lake
Location Method: Data Compilation
Access Description: Swanson Lake is accessible either by canoe and portage from Manitowick Lake or via float plane from Wawa or Hawk Junction.
1941-44: Leitch Gold Mines - prospecting, sampling. 1962: Algoma Ore Division: airborne geophysical survey, ground magnetic survey, mapping. 1972: Ontario Department of Mines: detailled mapping 1982-83: International Corona - mapping, sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| BIRD 0012 | 42C01NW8704 | 42C01NW8704 |
| KEATING 0018 | 42C06SE0036 | 42C06SE0036 |
| BIRD 0010 | 42C06SE0830 | 42C06SE0830 |
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 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 | Mafic lava flow-unsubdivided | 1 | Basalt | Gabbroic | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Basalt | Pillowed, Pyroclastic | Near |
Dec 07, 2005 (A Wilson) - All of the islands on Swanson Lake are described as composed of medium to coarse-grained gabbroic flows and medium-grained masic tuffs. All rocks are strongly magnetic and according to the 1972 field notes taken by R. Rupert, will deflect a compass needle up to 90 degrees.
Dec 07, 2005 (A Wilson) - A sketch by Leitch Gold Mines shows gold values of $1.05, $0.70 and $1.40 in the vicinity of the anomaly. Grab samples collected in 1983 by International Corona returned disappointing values.
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:
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 - 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: 127 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
Book - Gold Occurrences of Wawa-Missinabie Area, unpublished report
Publication Number: Robinson Page: 121 Date: 1983
Author: Robinson, D.
Publisher Name:
Location: Timmins RGO
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: 25 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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