Ontario Geological Survey
Permanent Link to this Record:
MDI52O07SW00003
| Record Name(s) | Beardrum Lake - 1990, Wright Lake # 3 - 1990, Ontario Gold Joint Venture - 9999 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1990-Nov-28 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Wright Lake Area
Latitude: 51° 15' 12.32" Longitude: -90° 56' 42.37"
UTM Zone: 15 Easting: 643397.778 Northing: 5680012.754 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O07SW
Point Location Description: Sample location GD6-R-103 depicted on AFRI 52O07SW0018-200.
Location Method: Data Compilation
Access Description: The Beardrum Lake occurrence is located about 56 km southwest of Pickle Lake. It is located about 300 m west of the central part of Dempster Lake and about 1.7 km east of Mousetrap Lake. Access to the Beardrum Lake occurrence is by appropriately equipped aircraft to Dempster Lake and then traversing overland to the occurrence.
1984: Dunlop Explorations working for the Ontario Gold Joint Venture (Northern Dynasty Explorations Ltd. and Newfield Minerals Inc.) conducted a prospecting and sampling program in the Dempster Lake area and discovered the Beardrum Lake occurrence. 1985-1988: The Ontario Gold Joint Venture (Northern Dynasty Explorations Ltd. and Newfield Minerals Inc.) conducted an exploration program on a large block of claims in the Dempster Lake area. The multi-phased program included geological mapping, stripping and trenching, rock and soil geochemistry and airborne mag and EM surveys, ground mag and EM surveys and diamond-drilling. Little of this work focused on the Beardrum Lake occurrence. 1986: St. Joe Canada Inc. commissioned airborne mag and EM surveys which included the area of this occurrence.
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Meen-Dempster
Geological Age: Neoarchean
Dec 07, 2005 (B Nelson) - The Beardrum Lake occurrence consists of gold-bearing quartz-tourmaline vein filled tension gashes in a quartz-feldspar porphyry dyke which intruded a sheared felsic metavolcanic (sericite schist). The tension gashes strike 360 degrees and dip near vertical. The porphyry dyke trends 050 degrees to 060 degrees through the felsic metavolcanic. The felsic metavolcanic exhibits a C-C' fabric where C strike 060 degrees and dips 72 degrees North. Tourmaline crystals in the plane of the C fabric define a steep south plunging lineation.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz-Tourmaline | Contains |
|---|---|---|---|---|
| Quartz-Feldspar Porphyry | 2 | Quartz-Feldspar Porphyry | Host | |
| Felsic lava flow-unsubdivided | 3 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| Sericite | Alteration | Unknown | 1 | ||||
| Tourmaline | Alteration | Unknown | 2 | ||||
| Carbonate | Alteration | Unknown | 3 |
Dec 07, 2005 (B Nelson) - A grab sample taken in 1986 by the Ontario Gold Joint Venture assayed 0.076 oz/ton Au. The Sioux Lookout Staff Geologist examined this occurrence in 1989. The assay result was not duplicated.
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
Map - Cat River-Kawinogans Lake area, District of Kenora (Patricia Portion), Ontario
Publication Number: ARM44F Scale: 1:126,720 Date: 1997
Author: Harding W.D.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of the Cat River-Kawinogans Lake area
Publication Number: ARV44-06.002 Date: 1997
Author: Harding W.D.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Cat Lake-Pickle Lake, geological compilation series, Kenora and Thunder Bay districts
Publication Number: M2218 Scale: 1:253,440 Date: 1976
Author: Sage R.P., Breaks F.W., Troup W.R.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of the Cat Lake-Pickle Lake area, districts of Kenora and Thunder Bay
Publication Number: R207 Date: 1982
Author: Sage R.P., Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian geology, Muskegsagagen-Bancroft lakes area, District of Kenora (Patricia Portion)
Publication Number: M2507 Scale: 1:50,000 Date: 1986
Author: Stott G.M., Wilson A.C.
Publisher Name: Ontario Geological Survey
Location:
Mono - Mineral Deposits of the Central Portion of Uchi Subprovince, Volume 1, Meen Lake to Kesagiminnis Lake Portion
Publication Number: OFR5869 Page: 347 Date: 1993
Author: Seim G.Wm.
Publisher Name: Ontario Geological Survey
Location:
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