Ontario Geological Survey
Permanent Link to this Record:
MDI42C02NE00131
| Record Name(s) | Reynolds Lake Iron Range - 1909 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-Sep-12 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Musquash
Latitude: 48° 11' 32.52" Longitude: -84° 42' 25.43"
UTM Zone: 16 Easting: 670400.8 Northing: 5340223.69 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02NE
Point Location Description: Occurrence 3A map P.2636
Location Method: Conversion from MDI
Access Description: The Reynolds Lake Iron Range is most easily accessed by travelling north by boat from the Steephill Falls Power dam. The Iron Range crosses the Magpie River Reservoir about 12 km north of the dam. The iron range extends south along the eastern side of Reynolds and Punk Lakes and along the west side of Eva Lake.
1909: prospecting. 1954: Algoma Steel Corporation Ltd. - 2 ddh (1061 ft).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Leclaire-0016 | 42C02NE0607 | 42C02NE0607 |
| Leclaire-0014 | 42C07SE0605 | 42C07SE0605 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Catfish
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: OFR 5888
Dec 07, 2005 (A Wilson) - The Reynolds Iron Range is one of 32 iron ranges that form the Michipicoten iron formation. The range strikes southeasterly from the fault east of Godon Lake where it joins with the Godon lake Iron Range. The range crosses Leclaire township and passes into the northeast corner of Musquash Township where it tapers out near the east boundary of the township. The southeast end of this iron range most likely correlates with the west end of the West Brooks Iron Range in Corbiere Township. There is more than one iron formation unit between Punk and Eva lakes and this distribution has been interpreted to be the result of strike-slip movement and stacking of a once continuous iron formation unit prior to folding. The movement has obliterated the original stratigraphy in this area. The Reynold Iron Range may represent the upper facies of iron formation separated by metavolcanic rocks from its lower facies.
| Rock Type | Rank | Composition | Texture | Relationship | Oxide Ironstone | 1 | Oxide Facies | Host |
|---|
Dec 07, 2005 (A Wilson) - The iron formation consists of iron stained banded chert with minor magnetite. It has been described as consisting of granular white quartz and some interbedded iron oxides. Pyrite and pyrrhotite have been observed in the vicinity of Reynolds Lake and a siderite lens has been observed in the vicinity of Eva Lake. The iron range faces southwest.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Siderite | Economic | Ore | ||||
| 1 | Pyrrhotite | Economic | Gangue | ||||
| 2 | Pyrite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - The sulphide and siliceous siderite content increase toward the east. A lens of siderite was discovered during diamond drilling. It is approximately 5-10 feet thick and 350 feet long gave an analysis of 31.1% Fe, 3.5 % Si 0.296% S.
| Rank | Classification |
|---|---|
| 1 | Sedimentary |
| Rank | Characteristic |
|---|---|
| 1 | Stratiform |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 9360 | 312 | 310 | 90 | 2750 MA | OFR 5888 |
Map - Michipicoten area, compilation sheet, District of Algoma
Publication Number: P0184 Scale: 1:126,720 Date: 1997
Author: Goodwin A.M.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological series, Precambrian geology, Leclaire Township, District of Algoma
Publication Number: P2636 Scale: 1:15,840 Date: 1985
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Book - Leclaire Township - unpublished GDIF
Publication Number: GDIF Date: 1996
Author:
Publisher Name:
Location:
Map - Geological series, Precambrian geology of Musquash Township, Algoma District
Publication Number: P2568 Scale: 1:15,840 Date: 1982
Author: Sage R.P., England D., Calvert T., Oudkerk G., Worona R., Koscinsko K.
Publisher Name: Ontario Geological Survey
Location:
Map - Michipicoten area, Algoma District, Ontario
Publication Number: Map 1972 Scale: 1:63,360 Date: 1923
Author: Collins, W H; Thomson, E
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/107947
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 244 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Abotossaway, Corbiere, Leclaire and Musquash Townships and Part of Dunphy Township, District of Algoma
Publication Number: OFR5587 Page: 300-302 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 73-74 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Michipicoten Iron Ranges; Geological Survey of Canada, Memoir 147
Publication Number: GSC Memoir 147 Page: 98 Date: 1926
Author: Collins, W H; Quirke, T T; Thomson, E
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100849
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