Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000002218

Record: MDI000000002218

General

Commodities

Primary Commodities: Graphite

Location

Township or Area: Olie Lake Area

Latitude: 49° 19' 31.56"    Longitude: -85° 31' 29.94"

UTM Zone: 16    Easting: 607180   Northing: 5464680    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42F05SE

Point Location Description: DDH MW-16-11 from AFRI 20000015101

Location Method: Data Compilation

Exploration History

2012: Claims were staked by Rare Earth Metals. 2015: Canada Rare Earth carried out a drill program. Ardiden Ltd. optioned the property. 2016-17: Ardiden Ltd. drilled 30 DDH totalling 2656 m.

Assessment Work on File

Geology

Province: Superior

Subprovince: Quetico

Geological Age: Archean  

Lithology

Lithology Comments

Sep 24, 2018 (Therese Pettigrew) - The Manitouwadge property is underlain by a sequence of gneissic and migmatized meta-sedimentary rocks. Four main lithology types are: 1) Biotite Quartz Feldspar Gneiss (Migmatite): This unit is comprised of very strongly deformed 1mm scale laminations of Biotite (10-40%), Quartz (30-40%), and (Feldspar 20-50%). Compositional segregations of quartz and feldspar up to 50 cm long by 3 cm wide attenuated horizons are common. 2) Garnet Biotite Quartz Feldspar Gneiss (Migmatite): This unit is essentially the same mode and morphology as the Biotite Quartz Feldspar Gneiss, however this unit contains up to 20% fine- to medium-grained red-pink garnet, occurring as subeuhedral to euhedral porphyroblasts disseminated throughout the biotite quartz feldspar gneiss and not affected by deformation (garnet porphyroblasts grow across compositional banding and are not preferentially concentrated or aligned). 3) Pegmatite, which comprises of very coarse-grained, massive biotite (5%), quartz (40 – 50%), and feldspar (50-60%). The pegmatite is generally discordant with the host gneisses and may represent very late stage partial melting of the arkosic to semi-arkosic sedimentary protolith. 4) Graphitic Schist, which is a distinctive weathering unit (1-12 meters wide), commonly exposed by the stripping and trenching by Brinklow (1992) and REM (2012) of mineralized biotite quartz-feldspathic gneiss (generally a gossanous purple-red brown to pale yellow-brown color). Graphite, pyrite and pyrrhotite occur throughout. The dominant gneissosity is generally east to west (085-090) and steeply dipping (AFRI 20000015101).

Mineralization

Mineralization Comments

Sep 24, 2018 (Therese Pettigrew) - The lithologies intersected in the 2016-17 drill holes are very similar in all holes. Overburden depths were less than 20 meters with the host country rocks being the paragneiss with biotite and/or garnet-rich varieties. It is fine to medium grained, well banded and may have pegmatite sections. The graphite mineralization is hosted within a graphitic-rich paragneiss. Drilled widths of up to 70+ meters of over 1.0% total graphitic carbon (TGC) were encountered. Average TGC ranged from 1.4 to 3.1% (AFRI 20000015101).

Mineral Record Details

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Ministry Contact Information

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