Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001143

Record: MDI000000001143

General

Mineral Record Identification
Record Name(s) Roland Lake occurrence - 1909
Related Record Type
Related Record(s)
Record Status Discretionary Occurrence
Date Created 2011-Mar-23
Date Last Modified 2023-Jun-19
Created By
Revised By

Commodities

Primary Commodities: Uranium, Thorium, Rare Earth Elements



Location

Township or Area: Graydon

Latitude: 49° 15' 58.38"    Longitude: -88° 35' 19.48"

UTM Zone: 16    Easting: 384418   Northing: 5458265    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52H07SE

Point Location Description: On Church Road system south of Roland Lake.

Location Method: Field Visit with GPS

Access Description: Accessible via a logging road south of Roland Lake



Exploration History

This showing was identified by A.P. Coleman in 1909 and then again by J.F. Scott in 2001. No assessment reports with exploration on this showing have been filed.


Geology

Province: Superior

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Granite 1
Breccia-unsubdivided 2 Hematite Breccia Zone Host

Lithology Comments

Jan 22, 2018 (J Scott) - Hematite breccia zone beside road.




Mineralization

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

Mineralization Comments

Mar 23, 2011 (J Scott) - Hematized granitic rock associated with regional faults. Radioactive.


Jan 22, 2018 (Therese Pettigrew) - Samples collected by Scott (2002) returned assays of 270-1040 ppm Ba, 25.6-80.7 ppm Ce, 1.48-9.08% Fe, 11.5-39.0 ppm La, 9.8-42.4 ppm Th, and 1.8-16.2 ppm U.



Mineral Record Details

Site Visit Information

Date: Jun 01, 2017

Geologist: J Scott

Notes: J.F. Scott collected 3 samples.



References

Mono - Report of Activities 2001, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District

Publication Number: OFR6081 Date: 2002

Author: Schnieders B.R., Scott J.F., Smyk M.C., Parker D.P., O'Brien M.S.

Publisher Name: Ontario Geological Survey

Location:


Part - Black Sturgeon iron region

Publication Number: ARV18-01.005 Page: 163-179  Date: 1998

Author: Coleman A.P.

Publisher Name: Ontario Bureau of Mines

Location:


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Ministry Contact Information

For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office