Ontario Geological Survey
Permanent Link to this Record:
MDI52A10NE00024
| Record Name(s) | Karies - 1929 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1979-Dec-18 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Lead
Secondary Commodities: Barite, Zinc, Copper
Township or Area: McTavish
Latitude: 48° 41' 33.51" Longitude: -88° 33' 25.48"
UTM Zone: 16 Easting: 385414 Northing: 5394459 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A10NE
Point Location Description: Precise
Location Method: Conversion from MDI
Pre-1889: 4 pits of unknown depth were developed in the vein. 1981: G.J. Maxwell staked the property. 1982: Noranda Exploration optioned the property. 1983: Noranda carried out linecutting, mapping, and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.5900 | 52A10NE0026 | 52A10NE0026 |
Province: Southern
Subprovince: Nipigon Basin
Formation Group: Sibley Group
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Diabase | 1 | Diabase Dyke |
|---|---|---|---|---|
| Granite | 2 | |||
| Terrigenous-Clastic-Unsubdivided | 3 | |||
| Vein | 4 | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Galena | Economic | Ore | ||||
| 2 | Sphalerite | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore | ||||
| 4 | Amethyst | Economic | Ore | ||||
| 1 | Calcite | Economic | Gangue | ||||
| 2 | Barite | Economic | Gangue |
Feb 25, 2020 (Therese Pettigrew) - About 1,000 feet south of the old Caribou mine a vein occurs along a diabase dike which parallels the Caribou dike and cuts across the same outcrop of granite capped by Nipigon sediments. This diabase dike is 7 feet wide and has a general dip of 80 S. The vein occurs along the footwall side or in fractures in the centre of the diabase. It has a visible length of 6.5 chains, disappearing on low land to the east and west. In width it ranges from 2 inches to 2 feet and in both the granite and the dolomite it is paralleled by numerous small veinlets, which are well mineralized. The ore minerals consist of galena and small amounts of sphalerite and chalcopyrite in a calcite, quartz, and barite matrix. In places about 80 per cent, of the vein is galena. An exposure on the west side of the outcrop shows the structural relationship. At this point the vein is split around a horse of diabase and has a width on either side of 1.5 and 2 feet. The vein material consists of a network of veinlets in an altered and brecciated dolomite. A sample taken across 40 inches of vein material gave a trace of zinc and 12.8% lead. Three hundred feet to the south of this vein, on the west side of the outcrop a vein, known as No. 2, is exposed on the side of a dolomite cliff, 30 feet high. It trends N. 70 E. and stands vertically. From the top to the base of the cliff it widens from 2 inches to 9 inches. The walls are sharp, being of Nipigon sediments, and show no mineralization. Along the north side there is from 2 to 3 inches of gouge. The vein is banded and consists of 2 inches of galena in calcite and 6 inches of barite in the centre. It has not been traced for any distance (Hawley, 1930)
Part - Lead and zinc deposits, Dorion and McTavish townships, Thunder Bay District
Publication Number: ARV38-06.002 Scale: Date: 1998
Author: Hawley J.E.
Publisher Name: Ontario Dept. of Mines
Location:
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