Ontario Geological Survey
Permanent Link to this Record:
MDI52J02NE00011
| Record Name(s) | Y Island - 1991, Hw 684 - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-20 |
| Date Last Modified | 2022-Sep-02 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Beckington Lake Area
Latitude: 50° 8' 2.23" Longitude: -90° 34' 43.68"
UTM Zone: 15 Easting: 673028.612 Northing: 5556331.089 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52J02NE
Point Location Description: Pits And Trenches
Location Method: Conversion from MDI
Access Description: There is no road or trail access. Light aircraft can land on the bay near the workings on the island. A boat or snowmobile can be used to reach the island from access points off Hwy 599 between Cobb Bay and Trapper's Point.
1974: S. Johnson held 2 claims which covered the Davidson-Carr showings. 1981: Sherritt Gordon Mines Ltd. acquired a block of claims which covered the Davidson-Carr and Y Island claims among others. 1982: Sherritt Gordon Mines Ltd. sampled the Y Island claims and examined 9 pits or trenches. 21 samples were taken from 7 of the pits.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52J02NE0039B1 | 52J02NE0049 | 52J02NE0049 |
| 52J02NE-0071 | 52J02NE0001 | 52J02NE0001 |
| 52J02NE0036B1 | 52J02NE0047 | 52J02NE0047 |
| 52J02NE-0061 | 52J02NE0007 | 52J02NE0007 |
| 52J02NE-0059 | 52J02NE0054 | 52J02NE0054 |
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Sheared Flows | Host | |
| Felsic lava flow-unsubdivided | 3 | Near |
Dec 07, 2005 (R Tuomi) - The pits were mostly fallen in and covered with debris. The wall rocks appeared to be sheared mafic volcanics and schists. The quartz veins contained minor amounts of chalcopyrite, pyrite and tetrahedrite along with iron carbonate and and calcite. The veins were narrow, less than 15 cm wide. The strike of the quartz veins varied from 060 degrees to 065 degrees with dips ranging from 68 degrees to vertical to the southeast.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Fuchsite | Economic | Ore | ||||
| 3 | Gold | Economic | Ore | ||||
| 4 | Pyrite | Economic | Ore | ||||
| 5 | Pyrrhotite | Economic | Ore | ||||
| 6 | Tetrahedrite | Economic | Ore | ||||
| Carbonate | Alteration | Carbonatization | 1 |
Dec 07, 2005 (R Tuomi) - 1979: surface grab samples, south end assays up to 2.15 opt Au. 1980-81: surface grab samples, south end assays up to 3.80 opt Au. Surface grab samples, north end assays up to 4.54 opt Au, 0.66% Cu. 1982: The pits contained sheared quartz in mafic metavolcanics or gabbro. Selected grabs assayed from 0.04 to 3.8 ounces gold per ton from the southwest vein area and from 0.12 to 2.16 ounces gold per ton for the northeast vein.
Dec 07, 2005 (R Tuomi) - Shearing
File - Sioux Lookout Mineral Deposit Files 52J02NE-0022-A1
Publication Number: Date:
Author:
Publisher Name:
Location: Kenora RGP office
MonoMap - Geology of the Squaw Lake-Sturgeon Lake area, District of Thunder Bay
Publication Number: R227 Date: 1983
Author: Trowell N.F.
Publisher Name: Ontario Geological Survey
Location:
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