Ontario Geological Survey
Permanent Link to this Record:
MDI42B01NE00032
| Record Name(s) | Groundhog R. - 1991, Groundhog River - 1903, Algoma Ore - 1946 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1993-Jun-17 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Keith
Latitude: 48° 9' 6.51" Longitude: -82° 14' 26.65"
UTM Zone: 17 Easting: 407719.41 Northing: 5333917.55 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42B01NE
Point Location Description: Large north-south trench in a set of three to four trenches
Location Method: Field Visit with GPS
Access Description: Access is very easy via the Groundhog River from either a landing near Highway 101 or a Landing on Groundhog Lake.
1903 W.G. Miller reported that Messrs Telgmann and Drew had evaluated the potential of the banded iron formations as a source of iron ore. 1914 Algoma Eastern Railway trenched and sampled the iron formation over a 400m x 23m section and obtained values ranging between 35% and 40% iron. A 20 ton bulk sample that was collected at this time graded 34% but a concentrate only marginally increased the grade. 1916 The mining claims were patented and held by Algoma Eastern Railway. 1946 Cominco geologically mapped the iron formation on the property which was held by the C.P.R. 1947 Keith Gold Mines carried out a gold exploration program in the area and drilled six holes but did not obtain any significant assays. 1959 Canadian Pacific Railway carried out a reconnaissance drill program to evaluate the iron formations with three diamond drill holes. 1960-61: Algoma Ore Properties carried out a ground magnetic survey and mapping program over the known iron formations and cored two diamond drill holes. Results from this work showed that the iron content is up to 25% over short intervals (6m) in either red jasper or magnetite banded iron formations. 1966 Kukatush Mining Corp drilled three widely spaced holes to test the iron formations but only one hole returned up to 15% iron.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-218 / | 42B01NE0158 | 42B01NE0158 |
| T-218 / 63.1102 | 42B01NE0162 | 42B01NE0162 |
| T-1310 / | 42B01NE0156 | 42B01NE0156 |
| T-1310 / | 42B01NE0159 | 42B01NE0159 |
| T-218 / 12 | 42B01NE0157 | 42B01NE0157 |
| T-1310 / | 42B01NE0155 | 42B01NE0155 |
| T-498 / | 42B01NE0153 | 42B01NE0153 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Tectonic Assemblage: Muskego-Reeves
Geological Age: Neoarchean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (S Fumerton) - Within the iron formation there are a number of small 'S' folds which locally are associated with brecciated chert horizons.
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Banded Iron Formation | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Hanging Wall | ||
| Sandstone | 3 | Arenite | Graded | Footwall |
Dec 07, 2005 (S Fumerton) - The mineralization is hosted in a finely laminated banded iron formation which is part of a sequence of mafic metavolcanic and metasedimentary rocks. Typically the banding is on a centimetre scale with magnetite beds intercalated with carbonate beds and less common chert beds. Graded bedding within the magnetite beds fine towards the north. Joints within the beds are variously filled with magnetite, chert or carbonate probably locally remobilised. To the north of the banded iron formation there is a horizon of fine grained though thickly bedded arenites (20 to 200cm). These arenites grade into argillites and also fine upwards to the north.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore | ||||
| 2 | Hematite | Economic | Ore |
Dec 07, 2005 (S Fumerton) - The banded iron formation is a lean oxide - carbonate - silica facies iron formation. Magnetite occurs in grains less than 1mm and form between 10 and 25% of the banded iron formation.
Dec 07, 2005 (A Wilson) - A sample across 15 feet assayed 37% Fe, 46% Si. A 20-ton sample assayed 34.41% Fe.
| Rank | Classification |
|---|---|
| 1 | Sedimentary |
| Rank | Characteristic |
|---|---|
| 1 | Stratiform |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 400 | 22 | 280 | 85 | N/A | N/A |
File - Resident Geologist files T-32, T-73, T-117, T-4285, T-4286
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Parts of Keith and Muskego townships, District of Sudbury, Ontario
Publication Number: M1950-04 Date: 1997
Author: Prest V.K., Hogg N.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
Map - Geological series, Operation Chapleau, Horwood Lake sheet, districts of Algoma, Cochrane, and Sudbury
Publication Number: P0673 Scale: 1:126,720 Date: 1997
Author: Thurston P.C., Siragusa G.M., Sage R.P.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Map - Patricia Showing-Hoodoo Prospect, Minor Element Data
Publication Number: OFM0215 Scale: 1:250 Date: 1993
Author: Siragusa G.M.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of the Keith-Muskego townships area
Publication Number: ARV59-07 Page: 11-12 Date: 1997
Author: Prest V.K.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Iron ranges of northern Ontario
Publication Number: ARV12.013 Date: 1998
Author: Miller W.G.
Publisher Name: Ontario Bureau of Mines
Location:
Part - Groundhog River area
Publication Number: ARV33-06.001 Date: 1998
Author: Todd E.W.
Publisher Name: Ontario Dept. of Mines
Location:
Book - Keith Township (unpublished GDIF)
Publication Number: GDIF Date: 1990
Author: Draper, D.
Publisher Name:
Location: Timmins RGP
MonoMap - Geology of the Chapleau area, districts of Algoma, Sudbury, and Cochrane
Publication Number: R157 Date: 1977
Author: Thurston P.C., Siragusa G.M., Sage R.P.
Publisher Name: Ontario Division of Mines
Location:
Mono - Report Of The Ontario Iron Ore Committee With Appendix 1923
Publication Number: NSP013 Date: 1998
Author:
Publisher Name:
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 343-344 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Mineral Prospects of the Swayze Greenstone Belt (Volume 1, Parts of NTS 41 O and Volume 2, Parts of NTS 41 P, 42 A and 42 B)
Publication Number: OFR5912 Page: 587-588 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Geophysical/geochemical series, north Swayze-Montcalm area, airborne electromagnetic survey, total intensity magnetic survey
Publication Number: M81376 Scale: 1:20,000 Date: 1990
Author: Geoterrex Ltd.
Publisher Name: Ontario Geological Survey
Location:
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