Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000002337| Deposit Name(s) | Rowlandson Lake South - 2001, 1400' Occurrence - 1984, No. 6 Vein - 1984 |
|---|---|
| Deposit Status | occurrence |
| Date Created | 2019-Sep-12 |
| Date Last Modified | 2019-Sep-12 |
| Created By | T Pettigrew |
| Revised By | T Pettigrew |
Primary Commodities: gold, arsenic, zinc, cobalt
Township or Area: Wapitotem Lake Area
Latitude: 52° 27' 7.23" Longitude: -87° 46' 23.95"
UTM Zone: 16 Easting: 447448 Northing: 5811595 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 43D05NW
Point Location Description: Sample 174613 from Assessment report 53J08NW2001
Location Method: data compilation
1937-40: Lansdowne Minerals Ltd. optioned the property to Winisk River Mines Ltd., who conducted prospecting, trenching, sampling, and drilled 1 DDH. 1984-86: Forester Resources Inc (FRI) conducted trenching, sampling, and drilled 3 DDH. 2001-03: Aurora Platinum Corp. carried out helicopter-borne magnetic and EM surveys, prospecting, mapping, and sampling. 2007: Northern Superior Resources conducted soil sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.28001 | 53J08NW2001 | Open |
| 2.58442 | 20000015738 | Open |
| 2.41571 | 20000004183 | Open |
| 2.28003 | 43D05NE2002 | Open |
Province: Superior
Subprovince: Sachigo
Terrane: Oxford Lake-stull La
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| porphyry | 1 | plagioclase-hornblende | contains | |
| vein | 2 | quartz-sulphide | host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | pyrite | economic | ore | ||||
| 2 | pyrrhotite | economic | ore | ||||
| 3 | arsenopyrite | economic | ore | ||||
| 4 | chalcopyrite | economic | ore | ||||
| 5 | sphalerite | economic | ore |
09/12/2019 (T Pettigrew) - Channel sampling of the No. 6 vein in 1937 returned values of up to $277.20 (7.96 oz Au/ton or 272.9 g Au /t) over 16 to 30 inches (0.40-0.76 m) (Assessment report 20000015738). An old trench at the 1400' occurrence exposes an east-west trending shear with narrow quartz-sulphide veins cutting altered plagioclase-hornblende porphyry. Sampling of one of the quartz-sulphide veins by Aurora yielded 107.5 g/t Au, 10.45% As, 385 ppm Co, 310 ppm Cu,and 4.88% Zn and 154.2 g/t Au, 13.85% As, 524 ppm Co, 370 ppm Cu, and 3.72% Zn from a 0.3 m wide quartz-sulphide vein (samples 174613 and 174615). These results are comparable to past sampling by FRI, which yielded 167 g/t Au (5.36 ounces of Au per ton) and 123.3 g/t Au (3.98 ounces of Au per ton) from grab samples and 10.3 g/t Au over 5.9 m in a channel sample (Novak, 1985 and 1986). The vein sampled in the current program, with an orientation of 094/87S to 104/86S, contains approximately 50% grayish quartz and 50% crudely banded sulphides, with pyrite>pyrrhotite>>arsenopyrite>chalcopyrite>sphalerite. An alteration envelope with a width of 1.5 to 2.0 m around the vein contains strongly sheared and silicified plagioclase-hornblende porphyry with 1 to 2% very fine-grained pyrite-pyrrhotite (Assessment report 53J08NW2001).
We are continuously updating the Mineral Deposit Inventory. 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 deposit please contact the Thunder Bay North Resident Geologist District Office