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Ontario Geological Survey
Permanent Link to this Record:
MDI31C12SE00016
| Record Name(s) | Wallbridge - 1880, Coe-Mitchell - 1981 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1981-Sep-14 |
| Date Last Modified | 2024-Aug-16 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Madoc, Madoc, Madoc
Latitude: 44° 33' 44.95" Longitude: -77° 30' 29.33"
UTM Zone: 18 Easting: 300820 Northing: 4937410 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C12SE
Point Location Description: Property symbol 53 near west side of Hwy 62 and SSE of Eldorado.
Location Method: Conversion from MDI
Access Description: Drive 6.2 km north of the junction of Hwy 62 & 7 near Madoc. Turn west onto the Hemitite Road. The pit is located approximately 151 m west and south from the intersection.
Most mining before 1900 from an open pit about 150 feet in diameter, 60 feet deep, and a 35 foot shaft. 1880: It was reported that upwards of 15,000 tons were mined and exported by Messrs, Coe, Mitchell and Company and daily production was about 15 tons. Around this time, Bethlehem Iron Company, of Bethlehem, Pennsylvania purchased this property. 1882: Bethlehem Iron Company. 1906: the mine was still in operation and supplied flux to the Stanley Smelting Works at Bannockburn. 1952: The property was drill by Trent River Iron Limited.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Domain: Grimsthorpe
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Hematitic precambrian marble dolomitic marble | Host |
|---|---|---|---|---|
| Limestone | 2 | Clastic limestone | Host | |
| Conglomerate | 3 | Hematitic paleozoic conglomerate | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Hematite | Economic | Ore | ||||
| 2 | Magnetite | Economic | Ore | ||||
| 3 | Specularite | Economic | Ore | ||||
| 4 | Goethite | Economic | Ore | ||||
| 5 | Chalcopyrite | Economic | Ore | ||||
| 6 | Pyrite | Economic | Ore | ||||
| 7 | Stilpnomelane | Economic | Ore |
Aug 01, 2024 (Nazha Sabiri) - The Wallbridge Iron Mine appears to be a complex deposit hosted within Precambrian crystalline carbonate rocks, with a strong association with the contact to overlying Paleozoic rocks. The primary ore mineral is hematite, occurring as both hard and soft varieties within a large, irregular-shaped orebody. While the majority of the ore is found within the Precambrian rocks, it's clear that the contact zone has influenced mineralization. Ore samples exhibit fine-grained hematite with associated minerals such as specularite, magnetite, goethite, and calcite. Geological context and mineral association suggest that the hematite formed through the alteration of preexisting sulfide minerals, such as pyrite and chalcopyrite, within the carbonate host rock. DiPrisco, G. and Springer, J.S. interpreted this deposit to be a Precambrian skarn iron ore deposit that underwent supergene enrichment, forming a thick gossan horizon. Subsequent erosion and collapse of the gossan created a topographic depression that was infilled with subaerial detrital sediments. This paleoregolith, representing a paleosol, was deposited prior to Middle Ordovician sedimentation. Remobilized iron oxide acted as a cementing agent within the paleoregolith. The unconformity between the Precambrian and Ordovician units created zones of enhanced permeability and porosity, facilitating the circulation of iron-bearing fluids. These fluids induced iron oxide replacement of marble clasts within the regolith and cemented the overlying conglomeratic regolith and Middle Ordovician sandstone. Multiple episodes of iron reconcentration occurred between the Late Proterozoic and Early Paleozoic (OFR5751).
| Rank | Classification |
|---|---|
| 1 | Replacement |
| 2 | Skarn |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1921 | 49 |
Iron 49 Tonnes |
Total production figure from this mine is unknown. A compilation from listed references puts this figure to about 49 tonnes. Production was sporadic between 1880 -1921. |
Mono - The Precambrian-Paleozoic unconformity and related mineralization in southeastern Ontario
Publication Number: OFR5751 Page: 96-99 Date: 1991
Author: DiPrisco G., Springer J.S.
Publisher Name: Ontario Geological Survey
Location:
Publication - Descriptive catalogue of a collection of the economic minerals of Canada, and notes on a stratigraphical collection of rocks [Philadelphia International Exhibition, 1876]; Geological Survey of Canada, Separate Report no. 405
Publication Number: GSC SR 405 Page: 13 Date: 1876
Author:
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/216063
Publication - A list of Canadian mineral occurrences; Geological Survey of Canada, Memoir no. 74
Publication Number: GSC Mem 74 Page: 118, 217 Date: 1915
Author: Johnston, R A A
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/101571
Publication - Iron deposits of eastern Ontario and adjoining Quebec; Geological Survey of Canada, Bulletin 45
Publication Number: GSC Bulletin 45 Page: 65-66 Date: 1958
Author: Rose, E.R.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100563
Publication - A Catalogue of Canadian Minerals; Geological Survey of Canada, Paper 69-45
Publication Number: Paper 69-45 Page: 281, 536 Date: 1972
Author: Traill, R J
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102924
Publication - Reports and maps of investigations and surveys 1882-83-84
Publication Number: Rep Prog 1882-4 Page: 11, 23 Date: 1885
Author: Selwyn, A R C
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/224678
Part - Mines of eastern Ontario
Publication Number: ARV10.005 Page: 129 Date: 1998
Author: De Kalb C.
Publisher Name: Ontario Bureau of Mines
Location:
Publication - Colonial and Indian Exhibition, London, 1886: Descriptive catalogue of a collection of the economic minerals of Canada; Geological Survey of Canada, Separate Report no. 409
Publication Number: GSC SR 409 Page: 27 Date: 1886
Author:
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/216067
MonoMap - Geology of Madoc Township and the north part of Huntingdon Township, Hastings County
Publication Number: R073 Page: 22-23 Date: 1968
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Catalogue of Canadian minerals; Geological Survey of Canada, Paper 80-18
Publication Number: Paper 80-18 Page: 187 Date: 1980
Author: Traill, R J
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/119519
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 164 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Iron ore occurrences in Canada; Canada Mines Branch, Publication 217
Publication Number: CMB Pub 217 Page: 123 Date: 1917
Author: Lindeman, M E; Bolton, L L; Robinson, A H A
Publisher Name: Canada Mines Branch
Location: https://doi.org/10.4095/305364
Mono - Metallogeny of the Grenville Province, southeastern Ontario
Publication Number: OFR5515 Page: 166 Date: 1984
Author: Carter T.R.
Publisher Name: Ontario Geological Survey
Location:
Publication - GSC 1896, Summary Report, p117
Publication Number: Page: 117 Date:
Author:
Publisher Name: GSC
Location:
Publication - The mineral pigments of Canada; Geological Survey of Canada, Separate Report 913
Publication Number: GSC SR 913 Page: 21 Date: 1906
Author: Willimott, C W
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/297614
Publication - Sulphur and pyrites in Canada; Canada Mines Branch, Memoir no. 118
Publication Number: CMB Mem 118 Page: 23, 41 Date: 1882
Author: Janes, T H
Publisher Name: Canada Mines Branch
Location: https://doi.org/10.4095/296357
Mono - Report Of The Royal Commission On The Mineral Resources Of Ontario And Measures For Their Development
Publication Number: NSP011 Page: 127, 133 Date: 1998
Author:
Publisher Name:
Location:
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office