Ontario Geological Survey
Permanent Link to this Record:
MDI43D05NW00005
| Record Name(s) | Rowlandson Lake - 1937, Winisk River Mines Ltd. - 1938, J.E. Rowlandson Veins - 1984, Copper Point - 1930 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2000-Sep-21 |
| Date Last Modified | 2022-Jan-28 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Copper, Nickel
Township or Area: Wapitotem Lake Area
Latitude: 52° 27' 50.98" Longitude: -87° 46' 24.98"
UTM Zone: 16 Easting: 447443 Northing: 5812947 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 43D05NW
Point Location Description: Location of vein on map in AFRI 43D05NW0002
Location Method: Data Compilation
Access Description: The property is accessible by float plane from commercial bases at Pickle Lake, Armstrong or Nakina.
1930: J.E. Rowlandson was shown the location of the occurrence by a local trapper. Winisk River Mines discovered gold in two quartz veins at the southwest end of Rowlandson Lake in 1937. Prospecting and diamond drilling were undertaken. 1957: La Corne Lithium Ltd. carried out EM and magnetometer surveys. 1983: Forester Resources Inc. staked over 600 claims over the Lavoie/Rowlandson Lake area. From 1983 to 1991 they conducted a multi-disciplinary exploration program for copper-nickel mineralization including geophysical surveys, prospecting, geological mapping, sampling, and drilling 7 DDH totalling 540.7 m. 2003: Aurora Platinum Corp. carried out an IP survey and drilled 4 DDH totalling 703.7 m. 2008: Northern Superior Resources Inc. carried out mapping and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 12 | 43D05NW1003 | 43D05NW1003 |
| 11 | 43D05NW9901 | 43D05NW9901 |
| 2.28003 | 43D05NE2002 | 43D05NE2002 |
| 2.42988 | 20000004368 | 20000004368 |
| 63.873 | 43D05NW0005 | 43D05NW0005 |
| 2.11381 | 43D05NW0002 | 43D05NW0002 |
| 2.11627 | 43D05NW0001 | 43D05NW0001 |
| 2.7318 | 43D11SW9907 | 43D11SW9907 |
| 63.4568 | 43D12SE0004 | 43D12SE0004 |
| 63.4702 | 43D12SE0005 | 43D12SE0005 |
| 63.4719 | 43D06NW9905 | 43D06NW9905 |
| 2.8800 | 43D12SE9908 | 43D12SE9908 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Belt: Wunnummin Lake
Geological Age: Archean
Dec 07, 2005 (Mark O'Brien) - The Rowlandson Lake area is situated in the Sachigo Subprovince, an arcuate group of mafic to felsic metavolcanic and metasedimentary assemblages and synvolcanic plutons which are intruded by younger felsic bodies and larger batholithic complexes. Quartz diorite, diorite, gabbro and anorthosite have intruded the metavolcanic rocks. (Blue Falcon Mines Ltd assessment report, 1992).
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz-Carbonate | Host |
|---|---|---|---|---|
| Intermediate Tuff | 2 | Ash Tuff | Adjacent | |
| Diorite | 3 | Diorite Dyke | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Arsenopyrite | Economic | Ore | ||||
| 1 | Stibnite | Economic | Gangue |
Jul 23, 2018 (N Bennett) - Mineralization is described as sporadic but assays reached values up to 5.36 o.p.t. (168 g/t). Typically assays within the zone return values between a third to half an ounce per ton. Strong relationship of gold with stibnite and arsenopyrite is noted. Gold horizon exists in a narrow zone dipping north at approximately 83 degrees. The host rock is intermediate ash to lapilli tuffs with minor quartz carbonate veining.
Jul 23, 2018 (Therese Pettigrew) - DDH 85-1 returned assays of 760-3600 ppm Cu and 123-3080 ppm Ni (AFRI 43D05NW0001).
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| 1 | Vein |
Date: Sep 21, 2000
Geologist: Mark O'Brien
Notes: V.K. Prest took a chip sample during his 1939 filed visit from the vein/shear zone southeast of the diorite dike that returned 0.79 opt Au; he also oserved traces of pyrite and chalcopyrite. He also took chip samples from the vein northwest of the diorite dike that assayed up to 0.05 opt Au.
Map - Rowlandson Lake area, District of Kenora (Patricia Portion), Ontario
Publication Number: ARM49N Scale: 1:126,720 Date: 1997
Author: Prest V.K.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Mineral Occurrences and Prospects in the Fort Hope-Winisk Area
Publication Number: OFR5926 Scale: Date: 1995
Author: Mason J.K., White G.D.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of the Rowlandson Lake area
Publication Number: ARV49-08.001 Scale: Date: 1997
Author: Prest V.K.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Fort Hope-Lansdowne House sheet, geological compilation series, Cochrane, Kenora, and Thunder Bay districts
Publication Number: M2237 Scale: 1:253,440 Date: 1972
Author: Thurston P.C., Carter M.W., Riley R.A.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Scale: Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
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