Ontario Geological Survey
Permanent Link to this Record:
MDI52C10NW00030
| Record Name(s) | Ryan - 1970, Seine Bay - 1911 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1984-Aug-30 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Titanium, Iron
Secondary Commodities: Vanadium
Township or Area: Halkirk
Latitude: 48° 39' 52.19" Longitude: -92° 57' 1.9"
UTM Zone: 15 Easting: 503642.84 Northing: 5390161.64 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52C10NW
Point Location Description: Precise
Location Method: Conversion from MDI
1911: Mr. Hunter carried out trenching and diamond drilling. 1917: W.L. Goodwin drilled 3 DDH. 1918: 275 pounds of the massive oxide mineralization was sent to the Ottawa Mines Branch for a feasibility study. 1919: W.M. Goodwin and J.F.C. Cadenhead developed a process for smelting titaniferous ore using silica or sand as a flux. 1956-57: Stratmat Ltd. carried out geological mapping and magnetometer survey. No assessment files were found on record.
Province: Superior
Subprovince: Wabigoon
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Gabbro | 1 | Gabbro | Host |
|---|
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Ilmenite | Economic | Ore | ||||
| 2 | Magnetite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Pyrite | Economic | Ore |
Jan 22, 2019 (Therese Pettigrew) - The titaniferous magnetite zone is in a mafic sill which is made up of medium-grained gabbro, coarse-grained anorthositic gabbro, and fine-grained gabbro dikes. The part of the sill exposed in the map-area is 7 miles long and ranges from 300 to 3,000 feet (91-914 m) wide. This mafic sill is intruded by a granitic sill to the north. The dimensions of the granitic sill are similar to the mafic sill. To the south, the mafic sill is in intrusive contact with older gabbro and mafic metavolcanics. The oxide zone is parallel to and 500 feet (152 m) south of the northern contact of the gabbro sill. The oxide zone strikes N75E, is vertical, and consists of discontinuous bands of massive and disseminated ilmenite and magnetite. In the map-area, massive bands containing from 65 to 95 percent oxides are up to 10 feet (3 m) wide. The massive ilmenite and magnetite are usually accompanied by disseminated oxides on one or both sides, but in some areas the massive oxides are in sharp contact with the gabbro. In other areas along the oxide-bearing zone, there is only disseminated ilmenite and magnetite. The massive mineralization consists of equant-granular subhedral grains of oxide, averaging 1.5 mm in diameter, set in a fine-grained chloritic matrix. The oxide minerals may make up to 35 percent of the rock (Harris, 1974). An examination of thin sections and polished surfaces by Rose (1969) revealed that ilmenite was the predominant oxide mineral along with some magnetite and a few grains of pyrrhotite and pyrite. The magnetite is usually intergrown with the ilmenite. An unusual characteristic of the ilmenite is its high magnetic property. Rose (1969) believes that this unusual magnetism is caused by the twinned character of the ilmenite, by the ferric oxide, and by the intergrowths of magnetite. Analyses of 13 samples range from 32 to 50 percent iron and from 6 to 16 percent titanium. A 275-pound sample of massive oxide mineralization from the western shore of Bad Vermilion Lake which was sent to the Ottawa Mines Branch for a feasibility study in 1918 yielded 44 to 46 percent iron and 8 to 16 percent titanium. The titanium content of the sample could not be reduced by magnetic methods. A lower grade sample taken by Rose (1969) was found on analysis to contain 5.89 percent TiO2, 22.9 percent FeO, 13.23 percent Fe2O3, and 0.072 percent vanadium. A magnetic concentrate of this sample contained 61.7 percent iron, 10 percent titanium, and 0.25 percent vanadium. This shows that the iron and titanium content can be increased by magnetic separation and that the vanadium is carried in the ilmenite and magnetite (Rose 1969).
MonoMap - Geology of the Rainy Lake area, District of Rainy River
Publication Number: R115 Scale: Date: 1974
Author: Harris F.R.
Publisher Name: Ontario Division of Mines
Location:
Publication - Geology of Titanium and Titaniferous Deposits of Canada; Geological Survey of Canada Economic Geology Report No. 25, p. 121-125
Publication Number: EconGeol 25 Scale: Date: 1969
Author: Rose, E.R.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102459
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 Kenora Resident Geologist District Office