Ontario Geological Survey
Permanent Link to this Record:
MDI42E11NE00009
| Record Name(s) | T. Johansen-Errington Occurrence - 9999, T.-Errington Johansen - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Errington
Latitude: 49° 40' 34.18" Longitude: -87° 1' 29.76"
UTM Zone: 16 Easting: 498201.234 Northing: 5502626.105 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E11NE
Point Location Description: Goldfields Road.
Location Method: Conversion from MDI
Access Description: The occurrence is located in south central Errington Township. Travel approximately 1.2 km south on Goldfields Road from Highway 11 to a blazed trail on the west side of Goldfields Road. Proceed less than 200 m west to the occurrence.
1984: T. Johansen staked claim TB784874 to cover the occurrence. The claim is bounded to the north, east, and west by the Tombill Main Group of patented claims.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| W8504-00584 | 42E15SW5018 | 42E15SW5018 |
| W8504-00583 | 42E15SW5017 | 42E15SW5017 |
| W8504-00582 | 42E15SW5016 | 42E15SW5016 |
Province: Superior
Geological Age: Archean
Dec 07, 2005 (B Nelson) - The T-Johansen-Errington occurrence is underlain by a turbidite-wacke-siltstone sequence. The occurrence is located 1.2 km south of the Bankfield-Tombill Fault, a major dextral strike-slip (transcurrent) fault. Pye (1951) noted that the metasediments young to the north. Wackes host sulphide and gold mineralized quartz-carbonate veins associated with a narrow fault zone. Gold, pyrite, arsenopyrite, specularite and tourmaline occur in the veins. The zone is silicified, carbonatized and sericitized, and hosts arsenopyrite. Foliation of the wackes strikes 265 degrees. Two prominent vein sets were noted. The main set is parallel to the fault and regional foliation and the second set strikes 240 degrees. The north side of the fault is not exposed. A vitreous, dark grey to white, discontinuous quartz vein, conformable to foliation, hosted two samples of visible gold.
| Rock Type | Rank | Composition | Texture | Relationship | Sandstone | 1 | Wacke | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz-Carbonate | Host | |
| Siltstone | 3 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Arsenopyrite | Economic | Ore | ||||
| 2 | Gold | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 4 | Specularite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Quartz | Alteration | Silicification | 1 | ||||
| Carbonate | Alteration | Carbonatization | 2 | ||||
| Sericite | Alteration | Sericitization | 3 |
Dec 07, 2005 (B Nelson) - Gold, pyrite, arsenopyrite, specularite and tourmaline occur in the veins. A vitreous, dark grey to white, discontinuous quartz vein, conformable to foliation, hosted two samples of visible gold. The Beardmore-Geraldton Economic Geologist's samples returned values <0.01 oz/ton Au.
Date: Jan 03, 1997
Geologist: B Nelson
Notes: The Beardmore-Geraldton Economic Geologist visited the occurrence July 18, 1985.
Map - Little Long Lac gold area, District of Thunder Bay, Ontario
Publication Number: ARM44D Scale: 1:31,680 Date: 1997
Author: Bruce E.L.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Township of Errington, District of Thunder Bay, Ontario
Publication Number: M1951-07 Scale: 1:12,000 Date: 1997
Author: Horwood H.C., Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Tashota-Geraldton sheet, geological compilation series, Thunder Bay and Cochrane districts
Publication Number: M2102 Date: 1997
Author: Pye E.G., Harris F.R., Fenwick K.G., Baillie J.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of Errington Township, Little Long Lac area
Publication Number: ARV60-06 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold occurrences, prospects, and deposits of the Beardmore-Geraldton area, districts of Thunder Bay and Cochrane
Publication Number: OFR5630 Date: 1986
Author: Mason J.K., White G.D.
Publisher Name: Ontario Geological Survey
Location:
File - Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Part - Geology of Errington Township, Little Long Lac area
Publication Number: ARV60-06 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
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