Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31E12SE00007

Record: MDI31E12SE00007

General

Mineral Record Identification
Record Name(s) Ryerson Graphite Project - 1982
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 1986-Jul-04
Date Last Modified 2022-Apr-13
Created By
Revised By

Commodities

Primary Commodities: Graphite



Location

Township or Area: Ryerson

Latitude: 45° 35' 32.9"    Longitude: -79° 31' 44.72"

UTM Zone: 17    Easting: 614728.997   Northing: 5049822.001    UTM Datum: NAD83

Resident Geologist District: Sudbury

NTS Grid: 31E12SE

Point Location Description: approximate

Location Method: Based on Assessment



Exploration History

1981: G. Ackerley - prospecting, trenching, sampling. 1981-83: MSI Management Services - mapping, ground geophysics, bulk sampling (>1000 lbs), DD-10-3284.5 ft, deposit assessment


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Ryerson-SP006 / 63.4199 31E12SE0003 31E12SE0003
Ryerson-SP007 / 63.4265 31E12SE0004 31E12SE0004

Geology

Province: Grenville

Subprovince: Central Gneiss Belt

Geological Age: Mesoproterozoic  



Geology Comments

Jan 04, 2012 (A Wilson) - Graphite occurs along a strike length in excess of 2,100 metres (6,900 feet). Indicated widths along part of the mineralized zone are sufficient to be amenable to open pit mining methods. The width of the deposit ranges from 20-60 m.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Paragneiss 1 Pelitic Contains

Mineralization

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

Mineralization Comments

Jan 04, 2012 (A Wilson) - Three zones of mineralization have been identified. Within the mineralized zone(s), graphite occurs as seams or laminae of fine to coarse flakes in bands of varying concentrations estimated to run from less than one percent to more than 10 percent. This zone also carries appreciably more pyrite than the graphite-barren gneisses and often presents a friable, dark brown to black coloured "burn" on outcrop surfaces. Diamond drilling returned the following results: DDH 82-1: values ranging from 0.16% graphite over 6 feet to 1.16% graphite over 10 feet; DDH 82-12: values ranging from 0.48% graphite over 10 feet to 1.24% graphite over 10 feet; DDH 82-3: values ranging from 0.28% graphite over 10 feet to 2.26% graphite over 10 feet; DDH 82-4: values ranging from 0.5% graphite over 10 feet to 1.52% graphite over 10 feet. Results from the two bulk samples ranged from 1.71% graphite to 2.65% graphite.



Mineral Record Details

Mineral Zones - Size and Shape

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Unknown 2100

References

Publication - Graphite occurrences in the Algonquin region, Grenville province, Ontario; Geological Survey of Canada, Open File 870

Publication Number: OF 870 Page: 1-5  Date: 1982

Author: Davidson, A

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129745


Map - Geological series, Precambrian geology of Dowling Township, Sudbury District

Publication Number: P2526 Scale: 1:15,840    Date: 1982

Author: Lafleur J., Maerz N., Dressler B.O.

Publisher Name: Ontario Geological Survey

Location:


Mono - Graphite in the Central Gneiss Belt of the Grenville Province of Ontario

Publication Number: OFR5649 Page: 105  Date: 1987

Author: Garland M.I.

Publisher Name: Ontario Geological Survey

Location:


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