Ontario Geological Survey
Permanent Link to this Record:
MDI52A10NW00007
| Record Name(s) | McConnell - 1923, Jessiman Property - 1958 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1980-Jan-24 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Tartan Lake Area
Latitude: 48° 37' 38.81" Longitude: -88° 49' 16.27"
UTM Zone: 16 Easting: 365806 Northing: 5387643 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A10NW
Point Location Description: 1958 drill holes
Location Method: Data Compilation
1923: M.A. Hanna Company drilled 6 DDH totalling 457.2 m. 1958: Seaway Iron Ores Ltd. drilled 38 DDH totalling 913.1 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 10 | 52A10NW0004 | 52A10NW0004 |
| 10 | 52A10NW0007 | 52A10NW0007 |
Province: Southern
Formation Group: Animikie Group
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Is |
|---|---|---|---|---|
| Schist-Unsubdivided | 2 | Adjacent |
Mar 10, 2020 (Therese Pettigrew) - Drill core from 1958 reported banded iron formation with mostly chert interbanded with magnetic iron, overlaying Precambrian schist (Assessment report 52A10NW0004).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Hematite | Economic | Ore | ||||
| 2 | Magnetite | Economic | Ore | ||||
| 1 | Chert | Economic | Gangue |
Mar 10, 2020 (Therese Pettigrew) - DDH J-3 returned up to 53.4% Fe over 10’, with an average of 31.76% Fe (Assessment report 52A10NW0004). Shklanka (1968) describes the showing as “Gently dipping Gunflint iron formation containing cherty carbonate, taconite, and argillite capped by 10 to 35 feet of Keweenawan diabase. Areas of hematite enrichment in the taconite facies. Drilling the iron formation outlined a zone 40 feet deep and 1500 feet in length averaging between 20 to 30 % Fe. Intersections sampled include 12.5% Fe over 5 feet, 41.9% Fe over 11.9 feet and 31.7% Fe over 25.8 feet. Samples from enriched portions in outcrops or adits range from 19.66% Fe to 65.26% Fe. One drill hole intersected 6.5 and 1.75-foot zones.” A composite sample made by combining half of all the drill core submitted by Seaway Iron Ores for testing returned 28.11% Fe2O3, 3.4% FeO, 45.61% SiO2, 7.49% CaO, 3.72% MgO, 0.48% Al2O3, 0.014% P2O5, 0.057% S, 0.49% MnO2, 0.08% TiO2, and 9.46% volatiles (Thunder Bay office RGP mineral deposit files).
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Loon Lake Iron | 1959 | Unclassified | 4688941 | Seaway Iron Ores Ltd. report in Thunder Bay office RGP mineral deposit files | 5,168,700 tons averaging 21.66% iron | Iron 21.66 Percent |
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 420 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Gunflint iron range in the vicinity of Port Arthur
Publication Number: ARV69-07.001 Page: 37-40 Date: 1998
Author: Moorhouse W.W.
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