Ontario Geological Survey
Permanent Link to this Record:
MDI42J03SW00007
| Record Name(s) | Pivabiska Magnetite - 1955, F.L. Flatt Property - 1955 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 2001-Aug-08 |
| Date Last Modified | 2022-Oct-07 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Renesig Creek Area
Latitude: 50° 6' 1.46" Longitude: -83° 24' 42.98"
UTM Zone: 17 Easting: 327512.68 Northing: 5552580.4 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42J03SW
Point Location Description: Flatt 1956 drillhole #1
Location Method: Based on Assessment
Access Description: The deposit is located 4 miles south of the Pivabiska River about 7 miles west of the Scovil / Burstall townships western boundaries, 30 miles north of Hearst on Highway 11. A road to Lac St. Therese ends approximately 20 miles south of the property. (SMDR #01010) Property itself is only accessible by float-plane (AF T-4399).
1925: L. Lahtinen - Initial discovery of zone A by trapper; 20ft pit to bedrock; assays 1955: F.L. Flatt - Pivabiska Exploration Syndicate, Preston East Dome - initial property staking; dip-needle surveys; assays 1956: C.C. Huston and Assoc. option - ground mag survey, 2 drill holes totalling 1084ft. 1958: Aerofall Mills Limited for Algoma Ore Properties - ore concentration tests. 1961: Algoma Steel Corporation Ltd. (Pivabiska Expln Synd. property) - 9 drillholes. 1961-62: Delrose Exploration and Mining Corporation - discovers and stakes westernmost claims, options to Algoma. 1961-62: Algoma Steel Corporation Ltd. - 28,324ft of drilling in 71 holes; thin section analysis; ground mag survey; soil and overburden engineering study; open pit feasibility studies; 150 ton bulk sample; metallurgical tests.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-0334 / 63.1215 | 42J03SW0004 | 42J03SW0004 |
| T-0628 / 63.755 | 42J03SW0009 | 42J03SW0009 |
| T-0628 | 42J03SW0008 | 42J03SW0008 |
| T-0627 | 42J03SW0007 | 42J03SW0007 |
| 63.779 | 42J03SW0010 | 42J03SW0010 |
Province: Superior
Subprovince: Quetico
Geological Age: Early Precambrian Geochron. Age Ref.: SMDR 01010
Metamorphism Grade: Amphibolite
Mar 25, 2014 (D Draper) - Iron formation is located within the southern part of a 4 mile wide band of metasediments about 2000ft from contact with intermediate to mafic metavolcanics. The iron formation strikes roughly E - W and dips steeply north or vertical. Drag folding of the IF has created zones of concentration which have been delineated by magnetic survey and drilling: A Zone is indicated by a magnetic anomaly 3000ft long by 500ft wide; B Zone is 2600ft long by up to 600ft wide; and C Zone which is located 500ft north of the east end of the A zone and extends 2800ft east. The area is completely covered by overburden up to 45 feet in depth with no outcrop exposure. A fourth D Zone was also identified.
| Rock Type | Rank | Composition | Texture | Relationship | Oxide Ironstone | 1 | Oxide Facies Iron Formation | Host |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Biotite-Quartz-Feldspar | Contains | |
| Schist-Unsubdivided | 3 | Chlorite | Near |
Mar 25, 2014 (D Draper) - Algoma type oxide-facies iron formation within metasediments in contact with intermediate to mafic metavolcanics (andesite and basalt). The metasediments consist of biotite-quartz-feldspar gneiss while the metavolcanics are partly metamorphosed to chlorite schist.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore | ||||
| 2 | Hematite | Economic | Ore | ||||
| 1 | Biotite | Economic | Gangue | ||||
| 2 | Garnet | Economic | Gangue | ||||
| 3 | Apatite | Economic | Gangue |
Mar 25, 2014 (D Draper) - The initial discovery of narrow quartz veins in a test pit was assayed for gold with negative results, circa 1925. A sample taken from the pit was re-assayed for iron in 1955, returning 40% Fe. Additional samples taken in 1955 returned assays up to 50% Fe. The iron formation consists of interlaminations of quartz-biotite schist and fine bands of magnetite averaging 1/8 inch in width along with occasional specular hematite and garnetiferous sections. Drill core assays of the IF ranged from 5 to 35% mag Fe and averaged 20% mag Fe.
| Rank | Classification |
|---|---|
| 1 | Sedimentary |
| Rank | Characteristic |
|---|---|
| 1 | Layered |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 1036 | 85 | 280 | 85 |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 762 | 149 | 295 | 90 |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 1006 | 47 | 280 | 85 |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 274 | 55 | 280 | 85 |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Zones A & B | 1971 | Unclassified | 54400450 | AF T-4399, summary report on Pivabiska Magnetite Property, Khan, July 1971 | grade given is % mag Fe; deposit estimated at 21% soluble Fe | Iron 17 Percent |
Book - Algoma Steel Corp.,
Publication Number: CMH 1965 Date: 1965
Author: The Northern Miner
Publisher Name: The Northern Miner Press
Location: Timmins RGO
File - Resident Geologist files T-0334, T-4399
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Pivabiska River sheet, District of Cochrane, geological compilation series
Publication Number: P0395 Scale: 1:126,720 Date: 1997
Author: Bennett G., Brown D.D., George P.T., Leahy E.J.
Publisher Name: Ontario Dept. of Mines
Location:
Book - Algoma Steel Corp., p. 24-25
Publication Number: CMH 1974 Date: 1975
Author: The Northern Miner
Publisher Name: The Northern Miner Press
Location: Timmins RGO
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 132-133 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
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