Ontario Geological Survey
Permanent Link to this Record:
MDI41N15NE00078
| Record Name(s) | Surluga Uranium-Thorium Occurrence - 1952 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1984-Jun-21 |
| Date Last Modified | 2022-Apr-26 |
| Created By | |
| Revised By |
Primary Commodities: Uranium
Secondary Commodities: Thorium
Township or Area: McMurray
Latitude: 47° 58' 20.81" Longitude: -84° 43' 28.08"
UTM Zone: 16 Easting: 669830.3 Northing: 5315743.59 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41N15NE
Point Location Description: Series of rock trenches northwest of Deep Lake
Location Method: Other Literature
Access Description: The actual location of the occurrence is imprecise. Drive south from highway 101along the Surluga Road to the Deep Lake turnoff (approximately 6 km) and then follow the Deep Lake trail for about 2 km. The trenches lie about mid way between Deep Lake and Sunrise Lake and is presumed to be in the sheared contact between a diorite apophyse and intermediate to felsic metavolcanics.
Pre 1952: prospecting and sampling by Tom Surluga. Subsequent work in the area has concentrated on the gold bearing quartz veins in the area.
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - Several radioactive mineral occurrences have been documented in the township. Some are believed to be related to the nearby Firesand River Carbonatite. Numerous radioactive lamprophyre dikes have been located adjacent to this intrusion. Purple fluorite, often considered to be an indicator of uranium and thorium mineralization has been found in several quartz-carbonate veins in the vicinity of the Deep Lake mine.
| Rock Type | Rank | Composition | Texture | Relationship | Diorite | 1 | Diorite To Quartz Diorite | Adjacent |
|---|---|---|---|---|
| Pegmatite | 2 | Host |
Dec 07, 2005 (A Wilson) - The occurrence has been described by Rupert as lying in a shear zone within the Jubilee tuffs near the margin of a diorite intrusion. Calcite and rusty carbonate replace much of the schist in the shear zone and there are narrow silicified sections. Previous descriptions suggest that the mineralization occurs in a pegmatite dike intruding a granitic complex. No pegmatites have been identified or mapped in the area.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Carbonate | Economic | Gangue | ||||
| 2 | Pyrite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - A sample from the showing reportedly assayed 0.10% U3O8. Ruper indicates that radioactivity is up to 4 times background across the width of the shear zone.
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 70 | 90 |
Map - Geological series, McMurray Township and parts of surrounding townships, formerly Township 29, Range 23, District of Algoma
Publication Number: P0828 Scale: 1:15,840 Date: 1973
Author: Rupert R.J.
Publisher Name: Ontario Division of Mines
Location:
Publication - Canadian deposits of uranium and thorium; Geological Survey of Canada, Economic Geology Series 16
Publication Number: Econ Geol 16 Page: 135 Date: 1962
Author: Lang, A H; Griffith, J W; Steacy, H R
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102450
Map - Geological series, Precambrian geology of McMurray Township, Wawa area, Algoma District
Publication Number: P2441 Scale: 1:15,840 Date: 1982
Author: Sage R.P., Sawitzky E., Turner J., Leeselleur P., Sagle E.
Publisher Name: Ontario Geological Survey
Location:
Mono - Uranium and thorium deposits of northern Ontario
Publication Number: MDC009 Page: 53 Date: 1968
Author: Robertson J.A.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of McMurray Township and parts of surrounding townships, District of Algoma
Publication Number: OFR5283 Page: 157 Date: 1979
Author: Rupert R.J.
Publisher Name: Ontario Geological Survey
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 278 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
Book - McMurray Township - unpublished GDIF
Publication Number: GDIF Date: 1985
Author: Resident Geologist Staff
Publisher Name:
Location: Timmins RGP
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