Ontario Geological Survey
Permanent Link to this Record:
MDI52A15SE00018
| Record Name(s) | Mallotte Mine - 1884, Miner Lake - 1929 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1980-Jan-28 |
| Date Last Modified | 2022-Feb-17 |
| Created By | |
| Revised By |
Primary Commodities: Lead
Secondary Commodities: Barite
Township or Area: Dorion
Latitude: 48° 48' 8.34" Longitude: -88° 37' 54.48"
UTM Zone: 16 Easting: 380176.6 Northing: 5406764.8 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A15SE
Point Location Description: Description in Thunder Bay Mineral Deposit files
Location Method: Data Compilation
Access Description: Access to the Mallotte Mine site is via the Ouimet Canyon raod off of Highway 11-17 about 75 km east of Thunder Bay. Follow the Ouimet Canyon road for 3.6 km NW, then turn right (north) onto a gravel road for 2.8 km, then turn left (west) onto a bush road and follow it up a hill to the microwave tower. From the tower, the Mallotte mine site is 0.6 km at an azimuth of 156.5 degrees.
1884: The Mallotte Mine was first owned by A.J. McDougall. By the end of 1885, a shaft was sunk, some surface stripping, pits, and trenches were completed. 1927: E.E. Johnson acquired the property and did some exploration, including 2 DDH. 1957: J. Michaud acquired the property and conducted a geophysical survey. 1966-68: W. Acker acquired the property and conducted surface work including trenching. 1975-76: W. Jergler took over the property and carried out stripping. 1981: Noranda Exploration Company Ltd. optioned the property from D. Petrunka. 1983: Noranda carried out line cutting, geological mapping, a magnetometer survey, and soil and humus sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.5901 | 52A15SE0012 | 52A15SE0012 |
| 2.5352 | 52A15SE0015 | 52A15SE0015 |
Province: Southern
Subprovince: Nipigon Basin
Formation Group: Sibley Group
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Sandstone | 1 |
|---|---|---|---|---|
| Diabase | 2 | Diabase | ||
| Breccia-unsubdivided | 3 | 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 | Pyrite | Economic | Ore | ||||
| 4 | Fluorite | Economic | Ore | ||||
| 5 | Chalcopyrite | Economic | Ore | ||||
| 1 | Barite | Economic | Gangue | ||||
| 2 | Calcite | Economic | Gangue |
Feb 25, 2020 (Therese Pettigrew) - To the south of the high diabase sill in the central part of the township, a fault breccia zone occurs in reddish sandstones and strikes N. 50 E. The breccia now exposed lies largely along the side of a small bluff on the west side of a creek draining the lake on the east half of lot 9, concession VII. It was traced for 20 chains southwest to the lake, into which it strikes. Old pits have been opened in several places on the breccia, which ranges from 3 to 7 feet wide. At the north end diabase overlies the Nipigon sediments 5 feet to the west. At the southwest end diabase is adjacent to the breccia on the west. The rock fragments in the breccia include sandstone, chert, dolomite, and diabase. These are cemented largely with white to amethystine quartz and are well mineralized with galena. A 10-foot pit at the lake contains a 16-inch barite vein in the breccia, which also carries abundant galena. A sample of galena ore on assay gave 62% lead and no silver (Hawley, 1930). Near Miner Lake, the mineralized vein occupies a northeast trending fracture zone, in a topographic depression within the diabase. It is a solution breccia obtaining widths up to 10 meters and can be traced for approximately 400 meters. The vein contains sporadic pockets of galena in a gangue of calcite, quartz and barite (Assessment report 52A15SE0012). Sphalerite and galena mineralization are found in a fault breccia which cuts thinly bedded sediments. These sediments are overlain by a diabase sill. Sphalerite, galena, and chalcopyrite are found in a vein with calcite, barite, and quartz (Thunder Bay mineral deposit files).
Map - Townships of Dorion and McTavish, District of Thunder Bay, Ontario
Publication Number: ARM38F Scale: 1:63,360 Date: 1997
Author: Hawley J.E., Tanton T.L.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Scale: Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
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:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office