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Ontario Geological Survey
Permanent Link to this Record:
MDI31D15SE00125
| Record Name(s) | Concretionary Limonite Occurrence - 1943, Furnace Falls Occurrence - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jun-28 |
| Date Last Modified | 2024-Jul-09 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Snowdon
Latitude: 44° 49' 58.75" Longitude: -78° 33' 49.46"
UTM Zone: 17 Easting: 692572 Northing: 4967285 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31D15SE
Point Location Description: Precise
Location Method: Data Compilation
Access Description: The Furnace Falls occurrence lies10 km northeast of the village of Kinmount. Access to the site is by Hwy 503, 1 km north of Irondale River. The occurrence lies on the west side of the road behind a farm.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| OP92-244 | 31F07SW0001 | 31F07SW0001 |
Jan 05, 2017 (A Wilson) - At this site a lithified regolith is developed on pyrite-bearing calcitic dolomite marble that is overlain by glaciofluvial sands of Pleistocene age. Outcrops are exposed in a relatively flat, low area, adjacent to a ridge of Precambrian quartzite. In the weathered oxidized zone, above the unaltered Precambrian marble, there is a strong enrichment of iron up to 36%, accompanied by an increase of the aluminium and titanium content; while magnesium, calcium, copper and zinc are depleted.
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Dolomitic | Host |
|---|
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Limonite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore |
Jan 05, 2017 (A Wilson) - The limonite layers range from 2 t6 4 inches in thickness. Disseminated pyrite accounts for 2% to 5% of a bluish green weathering dolomite marble in a road cut on the north side of Highway 503.
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
Mono - The Precambrian-Paleozoic unconformity and related mineralization in southeastern Ontario
Publication Number: OFR5751 Page: 102-104 Date: 1991
Author: DiPrisco G., Springer J.S.
Publisher Name: Ontario Geological Survey
Location:
Part - Mineral occurrences in the Haliburton area
Publication Number: ARV52-02 Page: 46 Date: 1998
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 150 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Howland area, Haliburton, Peterborough and Victoria counties
Publication Number: OFR5639 Page: 113-114 Date: 1987
Author: Easton R.M.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office