Ontario Geological Survey
Permanent Link to this Record:
MDI42I05NW00008
| Record Name(s) | Grand Rapids - 1920, Grand Rapids West - 1920 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1980-Dec-15 |
| Date Last Modified | 2022-Oct-07 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Secondary Commodities: Clay
Township or Area: Hogg
Latitude: 50° 23' 50.9" Longitude: -81° 49' 47.71"
UTM Zone: 17 Easting: 441014.26 Northing: 5583154.24 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42I05NW
Point Location Description: Center of Mattagami River at head of Grand Rapids (west end of rapids)
Location Method: Conversion from MDI
Access Description: By river, approximately 110 miles north of Mattagami railway station. Via Coral Rapids: from mileage 96 on the Moosonee branch of the Ontario Northland Railway, a 14-mile long winter road runs diagonally across Kilmer Twp. to Mattagami R. Or, from ONR mileage 112, an old road ran westward to an old lumber camp on the Onakawana R. This road was apparently extended by Dewson Mines in 1949 to access their drill site on the Mattagami on the south bank of the river, just west of the iron ore zone at the head of Grand Rapids. (1949, AF T-405).
1875: R. Bell, GSC - Occurrence discovery. Pre-1910: Unidentified company - Report of trenching, pitting at head of rapids, minor drilling at foot of rapids. 1910: Ont. Bureau of Mines - Field examination, sampling. 1919: J.G. Cross, Ont. Dept. of Mines - Reconnaissance survey, sampling. 1926: F.H. McLearn, GSC - Sampling. 1931: Dominion Observatory - Mag survey. 1933: Dominion Observatory - Mag and gravity surveys. 1948: Dewson Mines - Reconnaissance survey. 1949: Dewson Mines - 1 vertical DDH (#2) on south bank of river, quarter mile west of head of rapids (no report of Fe mineralization near surface; ferruginous sandstone and gritstone logged below 148ft). 1955: Goodwin property report (filed with Algoma Ore). 1980: B.P. Selco - Airborne EM survey. 1981: B.P. Selco - Airborne Mag survey.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2408 | 42I06NW8208 | 42I06NW8208 |
Province: Paleozoic and Mesozoic Basins
Subprovince: Moose River Basin
Geological Age: Mesozoic Geochronological Age: Early Cretaceous Geochron. Age Ref.: GSC Memoir 379, Pt.1, p.92
Mar 19, 2014 (D Draper) - At Grand Rapids beds of Abitibi River limestone outcrop on both sides of the Mattagami for a distance of two miles. The rock is gray-buff in colour, semi-crystalline and porous. On the north side at the head of the rapids the beds have an apparent dip of 1 degree upstream. Structurally there is a well-developed east-west jointing which suggests regional folding.
| Rock Type | Rank | Composition | Texture | Relationship | Limestone | 2 | Contains |
|---|
Mar 19, 2014 (D Draper) - Siderite admixed with silica, clay, limestone and organic matter (sandy ore) of Cretaceous age occurs in solution cavities as a replacement deposit in the Devonian Stooping River and Kwataboahegan (Abitibi) Formations, occupying irregular openings, cracks and cavities in the limestone. The widest observed opening (600ft) contains the better grades. Surficially, the siderite is oxidized to limonite, which forms a distinct, overlying, zone. The primary zone at the head of Grand Rapids is approximately 2500 ft wide in total with a maximum thickness of 25 feet. The zone extends under the river; its lateral extent away from the river has not been determined due to heavy drift. Goodwin (1956) distinguished between 2 zones: siderite, 600ft wide by 15ft thick and limonite, 30ft wide by 10ft thick (as exposed along shore).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Siderite | Economic | Ore | ||||
| 2 | Limonite | Economic | Ore | ||||
| 3 | Clay | Economic | Ore | ||||
| 1 | Silica | Economic | Gangue | ||||
| 2 | Clay | Economic | Gangue | ||||
| 3 | Pyrite | Economic | Gangue |
Mar 19, 2014 (D Draper) - The showing at the head of the rapids consists of exposures of both siderite and limonite. The siderite is dark brown to white, compact to granular, and occurs mainly in the lower part of the deposit. The limonite zone is commonly conglomeritic with oxidized boulders of siderite in a dark brown to black, sandy, limonitic matrix. Chip and channel samples for iron of varying lengths taken from the main zone (head of rapids) in 1919 returned from 30.32% to 47.1% Fe. A calcined sample returned 61.22%. Goodwin's chip sampling of the siderite zone returned from 43.47% Fe over 160ft to 45.78% Fe over 150ft. A chip sample over 30ft of the limonite zone returned 57.12% Fe. A 10ft-thick band of yellow clay is exposed on the south bank, exhibiting fair plasticity and good working qualities and was found to fire to approx. Cone 26 (commercial fire brick range). A lower band of white clay exposed at water level was not tested, but was more plastic and considered likely to be more refractory.
| Rank | Classification |
|---|---|
| 1 | Replacement |
| Rank | Characteristic |
|---|---|
| 1 | Discordant |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 762 | 7.6 | 355 | Cretaceous | ARV29-2, p.14 |
Date: Sep 16, 2002
Geologist: D Draper
Notes: Cross speculated that siderite deposits may be quite widely distributed in the region, giving several reasons for this opinion, specifically making reference to a great abundance of siderite boulder drift for many miles along the Mattagami River and observing that the Grand Rapids exposures did not seem to be of sufficient size to be the source for all the material in the drift.
File - Resident Geologist files T-0405, T-4409
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Otter Rapids sheet, District of Cochrane, geological compilation series
Publication Number: P0370 Scale: 1:126,720 Date: 1997
Author: Bennett G., Brown D.D., George P.T.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Route map of parts of the Moose River tributaries, districts of Algoma, Sudbury and Nipissing
Publication Number: ARM20D Scale: 1:253,440 Date: 1997
Author: Baker M.B., Rogers W.R.
Publisher Name: Ontario Bureau of Mines
Location:
Part - Geology and economic deposits of the Moose River basin
Publication Number: ARV37-06.001 Page: 68-69 Date: 1998
Author: Dyer W.S.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Map of northern parts of the districts of Algoma and Nipissing, Province of Ontario
Publication Number: ARM13B Scale: 1:506,880 Date: 1998
Author: Bell J.M.
Publisher Name: Ontario Bureau of Mines
Location:
Mono - Operation Kapuskasing
Publication Number: MP010 Page: 59-65 Date: 1967
Author: Bennett G., Brown D.D., George P.T., Leahy E.J., Guillet G.R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Explorations along the Abitibi, Mattagami and Missinaibi rivers, districts of Timiskaming and Algoma
Publication Number: ARM29F Scale: 1:500,000 Date: 1997
Author: Bell J.M., Baker M.B., Cross J.G., Williams M.Y., Keele J., Jackson P.A., Rogers W.R.
Publisher Name: Ontario Bureau of Mines
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 117 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Pre-Cambrian rocks and iron ore deposits in the Abitibi-Mattagami area
Publication Number: ARV29-02.001 Page: 8-17 Date: 1998
Author: Cross J.G.
Publisher Name: Ontario Bureau of Mines
Location:
Part - Iron and lignite in the Mattagami Basin
Publication Number: ARV20-01.008 Page: 224-26, 238-246 Date: 1998
Author: Baker M.B.
Publisher Name: Ontario Bureau of Mines
Location:
Part - Economic resources of Moose River Basin
Publication Number: ARV13-01.009 Page: 152-156 Date: 1998
Author: Bell J.M.
Publisher Name: Ontario Bureau of Mines
Location:
Publication - Devonian Stratigraphy of the Hudson Platform; Geological Survey of Canada, Memoir no. 379
Publication Number: GSC Memoir 379 Page: 92 Date: 1975
Author: Sanford, B V; Norris, A W
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/127033
Part - Clay and shale deposits of the Abitibi and Mattagami rivers
Publication Number: ARV29-02.003 Page: 52 Date: 1998
Author: Keele J.
Publisher Name: Ontario Bureau of Mines
Location:
Publication - The Mesozoic and Pleistocene deposits of the lower Missinaibi, Opazatika, and Mattagami rivers, Ontario; Geological Survey of Canada, Summary Report 1926, pt. C
Publication Number: GSC SumRep1926C Page: 44 Date: 1927
Author: McLearn, F.H.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102094
Mono - Report Of The Ontario Iron Ore Committee With Appendix 1923
Publication Number: NSP013 Page: 209-210 Date: 1998
Author:
Publisher Name:
Location:
Publication - Geology and bibliography of the Hudson Bay Lowlands, Operation Winisk; Geological Survey of Canada, Paper 67-60
Publication Number: Paper 67-60 Page: 43 Date: 1968
Author: Sanford, B V; Norris, A W; Bostock, H H; Bell, R T
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100932
Book - Refractory Clays of Northern Ontario, p.249
Publication Number: CIMM TRANS Date: 1933
Author: W.S Dyer and A.R. Crozier
Publisher Name: CIM
Location: Timmins RGP Tech Paper File
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