Ontario Geological Survey
Permanent Link to this Record:
MDI000000003737
| Record Name(s) | Mile 23 - 1984 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 2024-Mar-05 |
| Date Last Modified | 2024-Mar-05 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Township or Area: Longlegged Lake Area
Latitude: 50° 43' 9.71" Longitude: -93° 52' 12.94"
UTM Zone: 15 Easting: 438567 Northing: 5618979 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52K12NW
Point Location Description: Compiled from OFR5943 on p.73
Location Method: Data Compilation
Access Description: Access is available by Highway 804 northwest of Ear Falls, then to Longlegged Lake forest access road, then to Mile 23 road.
Province: Superior
Subprovince: Uchi
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 |
|---|---|---|---|---|
| Mafic pillowed flow | 2 | |||
| Intermediate flow breccia | 3 | |||
| Diorite | 4 |
Mar 05, 2024 (Paul Malegus) - March 5, 2024 (P. Malegus) - The property is underlain by massive to pillowed, amphibolitized and garnet-bearing mafic flows. A 200 m wide band of mafic flows, in contact with a narrow felsic to intermediate fragmental unit to the south, outcrops on the property. Small scale folding, pronounced foliation and gneissic textures affect all lithological units (Atkinson, B.T. and Storey, C.C. 1996. Report of Activities 1995, Resident Geologists, OFR 5943).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore |
Mar 05, 2024 (Paul Malegus) - March 5, 2023 (P. Malegus) - Two areas of mineralization have been identified. The South Zone consists of of a newly excavated trench measuring 1 m wide by 1 m deep by 5 m in length blasted in rusty, amphibolitized, course-grained mafic flows. Pyrrhotite and chalcopyrite occur as narrow seams and disseminations which comprise 1 to 20% of the rock. Mineralization is oriented 160/85 deg. E, in contrast to the regional foliation which trends 020 to 030 deg. Sulphide content varies directly with the amount of garnet present in the rock. A second trench, referred to as the North Zone, is located several hundred metres to the northeast of the South Zone. The North Zone consists of a 3 m wide band of silicified, pillowed mafic flows adjacent to thinly banded, intermediate fragmental metavolcanics and massive, medium-grained diorite. Foliation of the rocks at the North Zone is oriented at 030/85 deg. E. Minor pyrite and pyrrhotite mineralization imparts a rusty weathering to the rocks (Atkinson, B.T. and Storey, C.C. 1996. Report of Activities 1995, Resident Geologists, OFR 5943).
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
Mono - Report of Activities 1995, Resident Geologists
Publication Number: OFR5943 Page: 73 Date: 1996
Author: Baker C.L., Fyon J.A., Laderoute D.G., Newsome J.W.
Publisher Name: Ontario Geological Survey
Location:
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