Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31D15SE00127

Record: MDI31D15SE00127

General

Mineral Record Identification
Record Name(s) Irondale River Sulphides - 1991
Related Record Type Simple
Record Status Discretionary Occurrence
Date Created 1991-Jun-28
Date Last Modified 2022-Jan-05
Created By Q Unknown
Revised By Sheree Hinz

Commodities

Primary Commodities: Zinc, Lead, Nickel, Copper

Secondary Commodities: Cobalt



Location

Township or Area: Snowdon

Latitude: 44° 50' 12.06"    Longitude: -78° 33' 12.6"

UTM Zone: 17    Easting: 693369   Northing: 4967720    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31D15SE

Point Location Description: Precise

Location Method: Data Compilation

Access Description: In road cuts on the northwest side of Hwy 503, 0.7 km SE of Bow Lake.



Exploration History

1979-1981: St. Joseph Exploration Ltd. – EM and magnetometer surveys; geochemical, geological mapping Assays: Co 500 ppm; Cu 550 ppm; Ni 490 ppm, Pb 510 ppm, Zn 2250 ppm. (OFR 5639, p.114).


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.3711 31D15SW0001 31D15SW0001
2.3059 31D15SW0004 31D15SW0004

Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Bancroft

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Dolomite Marble 1 Host

Lithology Comments

Jan 06, 2017 (A Wilson) - In road cuts on the northwest side of Highway 503, disseminated sulphides occur in siliceous metasediments and interlayered calcite and dolomite marbles. Rusty-weathering siliceous metasediments contains visible sulphides.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyrrhotiteEconomicOre

Mineralization Comments

Jan 06, 2017 (A Wilson) - A rusty-weathering siliceous metasediment contains visible sulphides and assayed Co 500 ppm, Cu 550 ppm, Ni 490 ppm, Pb 510 ppm and over 2250 ppm Zn. Other samples from this site were not anomalous.



Mineral Record Details

Characteristics
Rank Characteristic            
1 Disseminated

References

MonoMap - Geology of the Howland area, Haliburton, Peterborough and Victoria counties

Publication Number: OFR5639 Scale:     Date: 1987

Author: Easton R.M.

Publisher Name: Ontario Geological Survey


Map - Geological series, Precambrian geology, Howland area, Haliburton, Peterborough, and Victoria counties

Publication Number: P2699 Scale: 1:15,840    Date: 1984

Author: Easton R.M., Bartlett J.R.

Publisher Name: Ontario Geological Survey


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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office