Ontario Geological Survey
Permanent Link to this Record:
MDI41N15NE00019
| Record Name(s) | Lake Osu Occurrence - 1963 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1983-Feb-04 |
| Date Last Modified | 2022-Jun-15 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: McMurray
Latitude: 47° 58' 12.15" Longitude: -84° 45' 11.73"
UTM Zone: 16 Easting: 667689.48 Northing: 5315413.37 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41N15NE
Point Location Description: Former unpatented mining claim SSM 61549
Location Method: Conversion from MDI
Access Description: The site is accessible by driving south from highway 101 along the Surluga Road for a distance of approximately 3 km. The property is situated to the south of the Citadel tailings pond (former Minto Lake) and to the north of Ward Lake.
1963-1971: Lake Osu Mines Ltd. -magnetometer, HLEM and geological surveys, 11 ddh (2957 ft). 1974-75: W. E. Nyman - VLF survey. 1980-84: Pango Gold Mines Ltd. - magnetometer survey, EM and radiometric survey, 3 ddh (700 ft). 1989-91: Citadel Gold Mines Ltd. - geological mapping. 2004: 3814793 Canada Inc. - sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| MCMURRAY 21A1 | 41N15NW0033 | 41N15NW0033 |
| MCMURRAY 12A1 | 42C02SW0072 | 42C02SW0072 |
| MCMURRAY 48 | ||
| MCMURRAY 55 | ||
| WP CHABANEL.71 | 42C02SE2014 | 42C02SE2014 |
| WPMCMURRAY 56 | 41N15NE9044 | 41N15NE9044 |
| MCMURRAY 24A1 | 41N15NE0508 | 41N15NE0508 |
| MCMURRAY 23A1 | 41N15NE0077 | 41N15NE0077 |
| MCMURRAY 26A1 | 41N15NE0082 | 41N15NE0082 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: OFR 5888
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - The occurrence is hosted by the Jubilee tuffs. These andesitic to dacitic tuffs locally surround the Jubilee Lake stock and appear to lie between the mafic to intermediate metavolcanics and intermediate to felsic metavolcanics.
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate Tuff-Breccia | 1 | Andesite To Dacite | Tuff, Breccia | Adjacent |
|---|---|---|---|---|
| Vein | 2 | Quartz | Host |
Dec 07, 2005 (A Wilson) - Descriptions of the actual occurrence are sketchy. Drill logs record a sequence of diorite, porphyrite and chlorite schist with abundant narrow lamprophyre dikes. Few quartz veins are reported in the drill logs. The geological map associated with the drill logs (McMurray 21A1) indicates a single isolated assay in the vicinity of the 4th drill hole. No assays are reported on the drill logs.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Chalcopyrite | Economic | Gangue | ||||
| 3 | Pyrrhotite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - A single assay of 0.29 oz/t Au is reported in file McMurray 21A1. A discription of a single coarse grained quartz vein indicates moderate gold values, but no specific values. A grab sample collected in 2004 returned an assay of 27.7 g/t Au.
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 7 | .8 | 270 | 45 |
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:
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:
Map - Precambrian Geology, Michipicoten Greenstone Belt, Central Portion
Publication Number: P3303 Scale: 1:50,000 Date: 1994
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Book - EXPL RPT - MCMURRAY 0048
Publication Number: N/A Date: 1996
Author:
Publisher Name:
Location: Timmins RGP
Book - EXPL RPT - MCMURRAY 0055
Publication Number: N/A Date: 1996
Author:
Publisher Name:
Location: Timmins RGP
Book - McMurray Township - unpublished GDIF
Publication Number: GDIF Date: 1985
Author: Resident Geologist Staff
Publisher Name:
Location: Timmins RGP
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 43 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
MonoMap - Geology of McMurray Township and parts of surrounding townships, District of Algoma
Publication Number: OFR5283 Page: 126-127 Date: 1979
Author: Rupert R.J.
Publisher Name: Ontario Geological Survey
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 271 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
Book - Gold Occurrences of the Wawa-Missanabie Area, unpublished report
Publication Number: Robinson Page: 58 Date: 1983
Author: Robinson, D.
Publisher Name: Ontario Geological Survey
Location: Timmins RGP
MonoMap - Geology of Chabanel, Esquega, Lastheels and McMurray Townships, District of Algoma
Publication Number: OFR5586 Page: 451 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office