Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41I14NE00034

Record: MDI41I14NE00034

General

Mineral Record Identification
Record Name(s) Roberts River Occurrence - 1917
Related Record Type Simple
Record Status Discretionary Occurrence
Date Created 1990-Nov-29
Date Last Modified 2022-Jan-05
Created By Q Unknown
Revised By A Wilson

Commodities

Primary Commodities: Iron



Location

Township or Area: Roberts

Latitude: 46° 57' 1.01"    Longitude: -81° 5' 29.84"

UTM Zone: 17    Easting: 493028.002   Northing: 5199643.004    UTM Datum: NAD83

Resident Geologist District: Sudbury

NTS Grid: 41I14NE

Point Location Description: approximate

Location Method: Data Compilation



Geology

Province: Southern

Subprovince: Sudbury Structure

Supergroup: Sudbury Igneous Complex, Main Mass

Geological Age: Paleoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Oxide Ironstone 1 Oxide-Facies Is
Breccia-unsubdivided 2 Oxide-Facies Is
Granite 3 Medium-Grained Footwall

Lithology Comments

Mar 11, 2010 (A Wilson) - The property is described as two prominent iron formation outcrops lying in lots 3 and 4 concession 4. The outcrops are described as banded granular silica and magnetite ranging from 15 to 20 feet in thickness.




Mineralization

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

Mineralization Comments

Mar 11, 2010 (A Wilson) - The average iron content of the iron formation was estimated between 30 and 35%.



Mineral Record Details

Classification
RankClassification            
1 Mafic-Ultramafic Intrusion
Characteristics
Rank Characteristic            
1 Stratabound

References

Folio - Roberts Township

Publication Number: GDIF486 Scale:     Date: 1997

Author: Sudbury RGO

Publisher Name: Ontario Geological Survey


MonoMap - Geology of Roberts, Creelman, and Fraleck townships, District of Sudbury

Publication Number: R091 Scale:     Date: 1971

Author: Meyn H.D.

Publisher Name: Ontario Dept. of Mines and Northern Affairs


Mono - Iron deposits of Ontario

Publication Number: MDC011 Scale:     Date: 1968

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines


Map - Roberts, Creelman, and Fraleck townships, Sudbury District

Publication Number: M2212 Scale: 1:31,680    Date: 1971

Author: Meyn H.D.

Publisher Name: Ontario Dept. of Mines and Northern Affairs


Mono - Report Of The Ontario Iron Ore Committee With Appendix 1923

Publication Number: NSP013 Scale:     Date: 1998

Author:

Publisher Name:


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