GeologyOntario has moved. You will be redirected to the new site in 10 seconds. If you are not immediately redirected please follow the below link to the new GeologyOntario platform. For assistance please contact us.
Ontario Geological Survey
Permanent Link to this Record:
MDI000000002218
Record Name(s) | Silver Star North Graphite - 2015 |
---|---|
Related Record Type | |
Record Status | Prospect |
Date Created | 2018-Sep-24 |
Date Last Modified | 2022-Jan-05 |
Created By | Therese Pettigrew |
Revised By | Therese Pettigrew |
Primary Commodities: Graphite
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
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.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
---|---|---|
2.57979 | 20000015101 | 20000015101 |
Province: Superior
Subprovince: Quetico
Geological Age: Archean
Rock Type | Rank | Composition | Texture | Relationship | Schist-Unsubdivided | 1 | Graphitic | Is |
---|---|---|---|---|
Gneiss-Unsubdivided | 2 | Metasedimentary | Host | |
Terrigenous-Clastic-Unsubdivided | 3 | Near | ||
Pegmatite | 4 | Biotite And Feldspar | Near |
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).
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
---|---|---|---|---|---|---|---|
1 | Graphite | Economic | Ore | ||||
2 | Pyrite | Economic | Ore | ||||
3 | Pyrrhotite | Economic | Ore |
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).
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office