Ontario Geological Survey
Permanent Link to this Record:
MDI52F05SW00018
| Record Name(s) | Sewell No. 1 and 2 Showings - 1943 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1983-Sep-08 |
| Date Last Modified | 2022-Sep-09 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Dogpaw Lake Area
Latitude: 49° 20' 24.08" Longitude: -93° 51' 17.52"
UTM Zone: 15 Easting: 437900 Northing: 5465607 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F05SW
Point Location Description: Precise
Location Method: Conversion from MDI
1943: discovered by L. Turcotte while prospecting for Noranda Mines Ltd. Staked by E. Sewell, who optioned them to Sylvanite Gold Mines Ltd. 1944: Sylvanite conducted trenching and sampling. 1961: Gateway Uranium drilled 9 DDH totalling 390.75 m. 1979: F.T. Archibald conducted mag and VLF geophysical surveys. 1980: Cymbal Explorations Inc. drilled 8 DDH totalling 870.8 m. 1997: Avalon Ventures conducted linecutting and a ground magnetometer survey. 2010: Soldi Ventures Inc. conducted geological mapping and geochemical sampling. 2012: Soldi Ventures flew a VTEM airborne survey.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.3627 | 52F05SW0117 | 52F05SW0117 |
| 2.51523 | 20000007345 | 20000007345 |
| 34 | 52F05SW0119 | 52F05SW0119 |
Province: Superior
Subprovince: Wabigoon
Belt: Kakagi-Rowan Lakes
Geological Age: Archean
Aug 31, 2017 (Therese Pettigrew) - The Sewell Property occurs at the junction of two regional fault structures, the Pipestone-Cameron Deformation Zone (PCDZ0 and the Wabigoon Fault System, both of which have been identified along strike lengths in excess of 100 km (AFRI 52F05SW0007).
| Rock Type | Rank | Composition | Texture | Relationship | Quartz-Feldspar Porphyry | 1 | Quartz And Feldspar Porphyry Dykes | Host |
|---|---|---|---|---|
| Felsic Lapilli-Tuff | 2 | Tuff, Lapillistone And Tuff-Breccia | ||
| Gabbro | 3 | Gabbro Sill |
Aug 31, 2017 (Therese Pettigrew) - The surface geology consists of a 975 m thick gabbro sill overlain to the southeast by intermediate tuff, lapillistone and tuff-breccia. Quartz and feldspar porphyry dikes are numerous in the northern part of the claim group, where the two main showings of gold mineralization occur. The rocks of the area southeast of Dogpaw Lake (were probably mafic in composition originally) but are now intensely altered and sheared. The major shear zone extending through Dogpaw Lake, Flint Lake and north of Stephen Lake passes through the northern part of the claim group (Davies and Morin, 1976).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Carbonate | Alteration | Carbonatization | 1 | Strong | Massive | ||
| Hematite | Alteration | Hematization | 2 | Unknown | Disseminated |
Aug 31, 2017 (C Ravnaas) - Speculative tonnage: 12,000 t @ 0.07 opt Au (Neilson and Bray, 1981).
Aug 31, 2017 (Therese Pettigrew) - The No. 1 showing consists of a quartz-carbonate vein from 1-3 ft wide striking E-W near the NW corner of claim 10542. The vein was blasted and sampled with negative results (Davies and Morin, 1976). Sampling from trenching on the No. 2 showing ranged from 0.28-0.66 oz/t Au (8.7-20.5 g/t Au). Grab samples included 0.07 and 0.84 oz/t Au over 45 ft width (2.2 and 26.1 g/t Au over 13.7 m width) (Neilson and Bray, 1981). The mineralization on the property consists of gold associated with pyrite in a shear zone located at the northern edge of a quartz porphyry dyke. The No. 2 showing was found in the strong shear zone crossing the south part of claim 10070. During 1944, this zone was trenched and sampled in several places. The mineralization varies in width from 8-21 ft (2.4-6.4 m) and has been cross-trenched for a length of 600 ft (183 m). There is a fairly heavy carbonate alteration associated with the mineralization. A grab sample collected by R. Thomson, Resident Geologist of Kenora in 1945 assayed 0.84 oz/t Au (26.1 g/t Au). In one trench, a small nearly vertical slip with strike about N30E contained specular hematite up to 1/2 inch wide with carbonate crystals and alteration adjoining over a width of about an inch (Davies and Morin, 1976). The highest assay from Cymbal’s 1980 drill program was 0.07 oz/t Au (2.2 g/t Au) (AFRI 52F05SW0119).
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
File - Resident Geologist files 52F05SW DD-2
Publication Number: Date:
Author:
Publisher Name:
Location: Kenora RGP office
Mono - Gold deposits of the Kenora-Fort Frances area, districts of Kenora and Rainy River
Publication Number: MDC016 Page: 37 Date: 1976
Author: Beard R.C., Garratt G.L.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of the Cedartree Lake area, District of Kenora
Publication Number: R134 Page: 44-46 Date: 1976
Author: Davies J.C., Morin J.A.
Publisher Name: Ontario Division of Mines
Location:
Mono - Feasibility of small scale gold mining in northwestern Ontario (parts of the districts of Kenora, Rainy River, and Thunder Bay), volume 1, text, volume 2, appendices
Publication Number: OFR5332 Page: B-14 Date: 1981
Author: Neilson J.N., Bray R.C.E.
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 Kenora Resident Geologist District Office