Ontario Geological Survey
Permanent Link to this Record:
MDI31M04SW00096
| Record Name(s) | Kokoko Iron Range - 1964, Jones and Laughlin Property - 1952 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1980-May-23 |
| Date Last Modified | 2022-Sep-20 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Chambers, Cynthia
Latitude: 47° 4' 26.82" Longitude: -80° 0' 6.12"
UTM Zone: 17 Easting: 575791 Northing: 5213884 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M04SW, 41P01SE
Point Location Description: outcrop of banded iron formation on claim T32298
Location Method: Data Compilation
1951-54: Dominion Gulf Company - ground geophysics, mapping, trenching, sampling, DD-4-2822 ft. 1964: Jalore Mining Company Limited - property ownership. 1970: Jones and Laughlin Steel Corporation - property acquisition, metallurgical testing (4 bulk samples). 1998: Ag Armeno Mines and Minerals Inc. - ground geophysics. 2007-2012: Pantheon Ventures Ltd. - ground geophysics
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| CO-0493 / 63.346 | 31M04SW0014 | 31M04SW0014 |
| CO-3612 | 20000006284 | 20000006284 |
| CO-3631 | 20000006599 | 20000006599 |
| CO-3278 / 2.36857 | 20000002633 | 20000002633 |
| CO-3399 / 2.39801 | 20000003599 | 20000003599 |
| CO-2357 / 2.18555 | 31M04SW2008 | 31M04SW2008 |
| CO-3709 / 2.52037 | 20000007244 | 20000007244 |
| CO-0493 / 63.340 | 31M04SW0013 | 31M04SW0013 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Temagami
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Contains |
|---|---|---|---|---|
| Silicate Ironstone | 2 | Silicate-Oxide Facies | Host |
Dec 05, 2012 (A Wilson) - The iron formation occurs in a ridge trending in a general northwest-southeast direction and ranges in width from 300 to 1000 feet. Outcrops of iron formation occur as shoals in Kokoko Lake. The iron formation consists of alternating bands of magnetite, silica and jasper. There are lenses in which magnetite is interbedded with only jasper, and others in which magnetite is interbedded only with fine-grained quartz or chert. The banding ranges in thickness from very fine to 2 inches, and averages about 1/4-1/2 inch. The iron formation is locally brecciated.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Gangue | ||||
| 3 | Limonite | Economic | Gangue | ||||
| 4 | Hematite | Economic | Gangue | ||||
| 5 | Pyrrhotite | Economic | Gangue | ||||
| 6 | Chalcopyrite | Economic | Gangue |
Dec 05, 2012 (A Wilson) - Magnetite forms 10-150% of the rock by volume and the magnetite grains have a diameter averaging about 0.18 mm. Sampling by the ODM resulted in grades ranging from 25 to 40% iron over 500 feet. Three possible ore bodies are present, each including material over 25% magnetite. At the western end, two parallel zones are indicated. The northern zone averages about 40 m over an exposed length of 330 m. The southern zone averages about 110 m over an exposed length of 460 m. Another deposit of possible ore-grade is located near the central section of the iron formation. It averages 126.8 m wide for a length of approximately 900 m.
| Rank | Characteristic |
|---|---|
| 1 | Stratiform |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Kokoko Iron | 1964 | Unclassified | 85003210 | CO-0866 | Iron 64 Percent |
File - Resident Geologist files CO-0882, CO-0886
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
MonoMap - Geology of the northeast Temagami area, District of Nipissing
Publication Number: R163 Page: 74-75 Date: 1978
Author: Bennett G.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of northwestern Timagami area, District of Nipissing
Publication Number: R028 Page: 24 Date: 1997
Author: Simony P.S.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 266-267 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Chambers and Strathy townships, Nipissing District
Publication Number: M2323 Scale: 1:31,680 Date: 1976
Author: Bennett G., Innes D.G.
Publisher Name: Ontario Division of Mines
Location:
Map - Northwestern Timagami area, Nipissing District
Publication Number: M2057 Scale: 1:31,680 Date: 1997
Author: Simony P.S.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Northeastern portion of the Timagami Lake area
Publication Number: ARV51-06 Page: 23 Date: 1998
Author: Moorhouse W.W.
Publisher Name: Ontario Dept. of Mines
Location:
Map - The northeastern portion of the Timagami Lake area, District of Nipissing, Ontario
Publication Number: ARM51E Scale: 1:63,360 Date: 1997
Author: Moorhouse W.W.
Publisher Name: Ontario Dept. of Mines
Location:
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For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office