Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001805

Record: MDI000000001805

General

Mineral Record Identification
Record Name(s) Crystal Zone - 2013
Related Record Type
Related Record(s)
Record Status Prospect
Date Created 2015-Jan-07
Date Last Modified 2022-Jul-15
Created By
Revised By

Commodities

Primary Commodities: Graphite



Location

Township or Area: Galway

Latitude: 44° 44' 28.71"    Longitude: -78° 28' 11.53"

UTM Zone: 17    Easting: 700309   Northing: 4957328    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31D09NW

Point Location Description: graphite exposure on west side of Loom Lake

Location Method: Data Compilation



Exploration History

2013-2014: Valterra Resource Corporation – mapping, sampling, trenching


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Galway #72 / 2.54354 20000009220 20000009220
Cavendish #160 / 2.55219 20000009172 20000009172

Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Bancroft

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Gneiss-Unsubdivided 1 Amphibolitic Host
Marble 2 Calcitic Host

Lithology Comments

Jan 12, 2015 (A Wilson) - Preliminary mapping in the area has shown that the graphitic horizon is associated with abiotitic/amphibolite gneiss and occurs in a unit ranging from 65 metres to 250 metres wide. This zone is associated with the Salerno Creek Deformation Zone that forms a major tectonic boundary between the Bancroft Terrane and Harvey-Cardiff Arch.




Mineralization

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

Mineralization Comments

Jan 12, 2015 (A Wilson) - Channel samples returned values >1% Cg including 3.0 m grading 2.3 Cg(%) and 2 m grading 1.8 Cg(%). The graphite occurs in a zone ranging from 65 to 250 m in width. Chip and grab samples ranging from 0.3 m to 1.0 m returned values ranging from 2.1 to 2.9 Cg(%). Higher grades of graphite are associated with the gneissic marble



Mineral Record Details

Classification
RankClassification            
1 Industrial
Characteristics
Rank Characteristic            
1 Stratiform

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Shear

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Regular 2500 200

References

Publication - Valterra Resource Corporation – press releases

Publication Number: Date: 2014

Author: Valterra Resource Corporation

Publisher Name: Valterra Resource Corporation

Location: Tweed RGO


Map - Haliburton-Bancroft area, Province of Ontario

Publication Number: M1957B Scale: 1:126,720    Date: 1997

Author: Satterly J., Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Bedrock geology of Ontario, southern sheet

Publication Number: M2544 Scale: 1:1,000,000    Date: 1991

Author: Ontario Geological Survey

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