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Ontario Geological Survey
Permanent Link to this Record:
MDI31C12SE00249
| Record Name(s) | Dufferin - 1981 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1981-Sep-15 |
| Date Last Modified | 2024-Aug-01 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Madoc
Latitude: 44° 34' 8.5" Longitude: -77° 35' 45.48"
UTM Zone: 18 Easting: 293869 Northing: 4938355 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C12SE
Point Location Description: Precise, middle of a series of E-W trenches along the crest of a hill.
Location Method: AMIS Site Visit
Access Description: Drive 1.5 km north of Eldorado P.O. on Hwy 62. Turn left on County Road 11 and drive 5.4 km to transmission line. Drive 1.4 km from left turn at high tension wire transmission towers. Walk 242 m south through swamp, 303 m along fence. Walk east along old track near hilltop.
A note indicated that this mine was producing 3 car loads per week until the Hamilton Furnace was closed.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Domain: Belmont
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Calcite-magnetite with native antimony | Host |
|---|---|---|---|---|
| Calcite Marble | 2 | Magnetite skarn | Sheared | Host |
| Granite | 3 | Deloro granite | Adjacent | |
| Limestone | 4 | Adjacent | ||
| Conglomerate | 5 | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Antimony | Economic | Ore | ||||
| 2 | Calcite | Economic | Ore | ||||
| 3 | Magnetite | Economic | Ore | ||||
| 4 | Pyrite | Economic | Ore | ||||
| 5 | Hematite | Economic | Ore | ||||
| 6 | Maghemite | Economic | Ore |
Dec 07, 2005 (D Laidlaw) - Red hematite and maghemite fragments are abundant in the basal Paleozoic conglomerate which overlies a Precambrian magnetite skarn deposit occurring in calcitic marble. (OFR 5751, p111).
Aug 01, 2024 (Nazha Sabiri) - Massive to disseminated magnetite in marble adjacent to the Deloro granite. The mineralized zone is 520 m long and 6 to 36 m wide. Ore assayed 63.80% iron, 0.23% antimony and 2.30% mangane. (MDC011, p. 159) Native antimony specimens, weighing 37 and 49 grams respectively, displaying brilliant cleavage surfaces and occurring as lamellar masses and stringers in calcite veins cutting magnetite ore body. Specimens assayed 99.89% antimony, with negligible amounts of arsenic (0.02%) trace iron as per an analysis conducted in 1903 (GSC AR 13R, p. 13).
Publication - Chemical analyses of Canadian rocks, minerals, and ores; Geological Survey of Canada, Bulletin 115
Publication Number: GSC Bull 115 Page: 297 Date: 1965
Author: Maxwell, J A; Dawson, K R
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100631
Publication - Report of the section of chemistry and mineralogyGeological Survey of Canada, Annual Report vol. 13, (1900), pt. R
Publication Number: GSC AR 13R Page: 13 Date: 1903
Author: Hoffmann, G C
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/295065
Publication - A list of Canadian mineral occurrences; Geological Survey of Canada, Memoir no. 74
Publication Number: GSC Mem 74 Page: 149, 25 Date: 1915
Author: Johnston, R A A
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/101571
MonoMap - Geology of Madoc Township and the north part of Huntingdon Township, Hastings County
Publication Number: R073 Page: 22 Date: 1968
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 159 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Metallogeny of the Grenville Province, southeastern Ontario
Publication Number: OFR5515 Page: 96 Date: 1984
Author: Carter T.R.
Publisher Name: Ontario Geological Survey
Location:
Mono - The Precambrian-Paleozoic unconformity and related mineralization in southeastern Ontario
Publication Number: OFR5751 Page: 111-112 Date: 1991
Author: DiPrisco G., Springer J.S.
Publisher Name: Ontario Geological Survey
Location:
Book - Geology and Minerals of Ontario
Publication Number: Page: 299, 304, 305 Date: 1929
Author:
Publisher Name: Garden City Press
Location: Tweed RGP
Mono - Preliminary report on ground investigation of aeromagnetic anomalies on the Campbellford and Bannockburn sheets
Publication Number: PR1951-06 Page: #6 Date: 1998
Author: Harding W.D.
Publisher Name: Ontario Dept. 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: 23 Date: 1886
Author:
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/216067
Part - Minerals of Ontario, with notes
Publication Number: ARV09.009 Page: 202 Date: 1998
Author: Miller W.G.
Publisher Name: Ontario Bureau of Mines
Location:
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office