Ontario Geological Survey
Permanent Link to this Record:
MDI52B14SW00002
| Record Name(s) | Atikokan Iron - 1900 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1979-Jun-18 |
| Date Last Modified | 2022-Mar-18 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Secondary Commodities: Copper, Cobalt, Nickel
Township or Area: Hutchinson
Latitude: 48° 47' 3.7" Longitude: -91° 16' 59.31"
UTM Zone: 15 Easting: 626114.12 Northing: 5404906.23 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52B14SW
Point Location Description: Abandoned Mine
Location Method: Conversion from MDI
Access Description: Access is available via Highway 11, turn north on to Highway 623 for a distance of approx 5km. Highway 623 joins a gravel road maintained Domtar Woodlands Limited. Travel northeast for approx. 1.5km and turn east onto the mine road just after crossing the Atikokan River. Approx. 1.0km from this turn-off is the old mine site.
1882: the deposit was discovered. 1900: Property was acquired by the Atikokan Iron Company Ltd. and a tunnel was driven 86 m into hill. 1901: 6 D.D. holes. 1907 and 1911: End of tunnel enlarged. 1907, 1909, and 1911: the mine operated, 90,680 tons of ore removed. 1911 - 1912: 4 more tunnels driven, 3 exploratory shafts. 1913: Mining ceased. 1929: Mapping and sampling by J.E. Hawley of the ODM. 1940: M.W. Bartley carried out sampling. 1969: Paulpic Gold Mines Ltd. carried out sampling. 1970: Monteagle Minerals Ltd. examined the property and completed a ground geophysical survey. Kemins Exploration Ltd. carried out an airborne geophysical survey. 1980: M. Lewis acquired the property.
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Chalcopyrite | Economic | Ore | ||||
| 5 | Cobaltite | Economic | Ore | ||||
| 6 | Pentlandite | Economic | Ore | ||||
| Chlorite | Alteration | Chloritic | 1 | Unknown | Disseminated |
Jun 20, 2018 (Therese Pettigrew) - The Atikokan Iron Mine is situated on an iron formation lens (magnetite, pyrite and pyrrhotite with minor chalcopyrite). The unit is approximately 1160 m long and 100 m wide. This deposit is one of a number of similar lenses of the Atikokan Iron Range. These lenticular bodies outcrop intermittently for 26 km along the E-W-trending Quetico fault, which separates rocks of the Sapawe Lake metavolcanic belt to the north from metasediments to the south. The lenses or irregular masses of sulphide occur in a highly-altered gabbro. The gabbro shows variations from feldspathic to hornblendic phases. Away from the contact with the iron formation the gabbro contains practically no sulphide minerals. Locally, the gabbro has been altered to chlorite. The mineralization as exposed in the workings of the Atikokan Iron Mine consists mainly of magnetite with associated pyrite, pyrrhotite and minor chalcopyrite, cobaltite and pentlandite. The mineralization occurs as high-grade lenses which lack continuity both vertically and along strike (Schnieders and Dutka, 1985). Five samples of the pyrite contained an average trace element concentration of 0.19% cobalt, 0.23% copper, 0.13% nickel and 0.03% zinc; five samples of the pyrrhotite contained an average of 0.08% cobalt, 0.30% copper, 0.17% nickel, and 0.02% zinc; and nine samples of the magnetite contained an average of 0.16% cobalt, 0.017% copper, 0.016% nickel and 0.018% zinc (Fenwick, 1979).
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Atikokan Iron Mine | 1972 | Unclassified | 24000000 | NM (26/10/1972) | 24 Mt @ 35% Fe, 0.40% Cu | |
| Atikokan Iron Mine | 1915 | Unclassified | 10900000 | Shklanka R, 1968, MRC 11, Iron Deposits fo Ontario, p299. | Atikokan Iron Company (1915) reported 10.9 million tons of low & high sulphur ore. | |
| Atikokan Iron Mine | 1913 | Unclassified | 1700000 | Shklanka R, 1968, MRC 11, Iron Deposits fo Ontario, p299. | C.M. Wild (1913) reported 1.7 million tons @ 53.7% Fe, 0.133%P, 12.15%SiO2, 3.96% S. |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1912 | 82263 |
Iron 59.8 Percent (%) Sulphur/Pyrite 2.01 Percent (%) |
Shklanka R, 1968, MRC 11, Iron Deposits fo Ontario, p299. | 1907-1912: 90,680 t @ 59.8%Fe, 0.11%P, 8.86%SiO2, 2.01%S |
Map - Geological series, Sapawe Lake area, east part, Rainy River District
Publication Number: P2388 Scale: 1:15,840 Date: 1981
Author: McIlwaine W.H., Larsen C.R.
Publisher Name: Ontario Geological Survey
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 299 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of the Sapawe Lake area, with notes on some iron and gold deposits of Rainy River District
Publication Number: ARV38-06.001 Page: 42-49 Date: 1998
Author: Hawley J.E.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Property visits and reports of the Atikokan economic geologist, 1979-1983, Atikokan geological survey
Publication Number: OFR5539 Page: 101-103 Date: 1985
Author: Schnieders B.R., Dutka R.J.
Publisher Name: Ontario Geological Survey
Location:
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