Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42E03SE00003

Record: MDI42E03SE00003

General

Mineral Record Identification
Record Name(s) Harvie Creek Graphite - 1986, Zenmac DDH GRZ 10 - 1988, Zenmac Property - 1986
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Apr-02
Date Last Modified 2022-Dec-06
Created By
Revised By

Commodities

Primary Commodities: Zinc

Secondary Commodities: Graphite



Location

Township or Area: Upper Aguasabon Lake Area

Latitude: 49° 1' 33.65"    Longitude: -87° 8' 44.55"

UTM Zone: 16    Easting: 489348   Northing: 5430358    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42E03SE

Point Location Description: approximate location of drill collar of GRZ 10

Location Method: Based on Assessment

Access Description:



Exploration History

1983-88: Golden Range Resources Ltd. – airborne geophysics, ground geophysics, mapping, DD-2-156.05 m


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
63.4765/OM86-300 42E03SE0008 42E03SE0008
13 42E03SE0005 42E03SE0005



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic Tuff 1 Tuffaceous Hanging Wall
Terrigenous-Clastic-Unsubdivided 2 Graphitic Siltstone Is

Lithology Comments

Jan 20, 2014 (A Wilson) - The property mainly consists of fine-to-coarse grained mafic flows and tuffs which, at the contact are intercalated with siltstones to form a transition zone. The transition zone is more metamorphosed than the bordering lithologies and contains an alteration assemblage of garnets and hornblende comparable to that surrounding the Winston Lake deposit. The Upper and Lower contact of the transition zone can be traced the length of the property, but is widest in the western part of the property. Within the zone thin beds of cherty ironstone were located. The sediments are mainly siltstone with minor coarser beds of sandstone. The volcanics are intruded by quartz diorite (porphyry) sills which, in places, have phenocrysts of blue quartz eyes. These are located mainly in the southwest part of the property. Felsic intrusions consisting of granite, syenite, syenodiorite and pegmatites are located generally north of the transition zone. An exception to this is the syenodiorite and felsic sills associated with the carbonate zone surrounding the Harvie Creek fault. The pegmatites occur mainly within the transition zone and in the sediments east of Garnet Lake. Minor diabase dykes cross-cut all lithologies mainly in north and northeasterly directions. Diamond drilling intersected a 0.85 m thick section of graphitic argillite in DDH GRZ 10, as well as an 8.1 m thick section of graphitic argillite in DDH GRZ-11.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GraphiteEconomicOre
2SphaleriteEconomicOre
3ChalcopyriteEconomicOre

Mineralization Comments

Jan 20, 2014 (A Wilson) - A 1.2 m section of DDH GRZ-10 assayed 6100 ppm Zn and 60 ppm Cu



Mineral Record Details

References

File - Resident Geologist Mineral Deposit Files

Publication Number: Min Dep Date: 1996

Author:

Publisher Name:

Location: Thunder Bay RGP


Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District

Publication Number: M2232 Scale: 1:253,440    Date: 1973

Author: Carter M.W., McIlwaine W.H., Wisbey P.A.

Publisher Name: Ontario Division of Mines

Location:


Map - Big Duck-Aguasabon lakes area, District of Thunder Bay, Ontario

Publication Number: ARM49K Scale: 1:31,680    Date: 1997

Author: Bartley M.W.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Geology of the Big Duck-Aguasabon lakes area

Publication Number: ARV49-07.001 Date: 1998

Author: Bartley M.W.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Geology of Schreiber-Terrace Bay area, District of Thunder Bay

Publication Number: OFR5692 Date: 1988

Author: Carter M.W.

Publisher Name: Ontario Geological Survey

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