Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42D09NE00005

Record: MDI42D09NE00005

General

Mineral Record Identification
Record Name(s) Northern Eagle Barite - 1984
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1984-Mar-13
Date Last Modified 2022-Dec-01
Created By
Revised By

Commodities

Primary Commodities: Gold, Barite

Secondary Commodities: Molybdenum, Silver



Location

Township or Area: Pic

Latitude: 48° 41' 28.46"    Longitude: -86° 11' 46.48"

UTM Zone: 16    Easting: 559151   Northing: 5393445    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42D09NE

Point Location Description: AMIS location

Location Method: Data Compilation



Exploration History

1983: Northern Eagle carried out geological mapping, soil sampling, IP surveys, airborne VLF-EM and magnetic surveys, trenching, and drilled 6 DDH totaling 101.57 m. 1989: Noranda Exploration carried out mapping and prospecting. 1992: Hemlo Gold Mines Inc. carried out a magnetometer survey. 1994: Hemlo Gold Mines conducted trenching and sampling. 2006: Consolidated Beaufield Resources Inc. carried out sampling.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
28 42D09NE0192 42D09NE0192
2.6999 42D09NE0184 42D09NE0184
2.15667 42D09NE0050 42D09NE0050
2.12737 42D09NE0130 42D09NE0130
2.14821 42D09NE8282 42D09NE8282
2.6809 42D09NE0188 42D09NE0188
2.32923 20000001578 20000001578

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Schreiber-Hemlo

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Schist-Unsubdivided 1 Tuff, Pyritic, Sericite, Mica
Mafic pillowed flow 1 Pillow, Breccia
Granite 2 Dike
Conglomerate 2 Chloritic, Pyritic, Carbonate, Breccia
Silty Sandstone 2 Wackes, Silts

Lithology Comments

Dec 17, 2018 (Therese Pettigrew) - The stratigraphy consists of mafic metavolcanics and metasediments to the south, followed by a quartz-feldspar sill (3 m wide) with lenses of graphitic schist, followed by the barite unit. This is overlain by a sericitic schist (with abundant green mica), graphitic schists, and metasiltstone. Further to the north (1 km), metapelites containing garnet, staurolite, and andalusite are exposed (Patterson, 1984).




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1BariteEconomicOre
2PyriteEconomicOre

Mineralization Comments

Dec 17, 2018 (Therese Pettigrew) - The occurrence has been trenched, exposing a unit of massive barite 1 to 2 m thick, with a strike of 110 degrees, and dipping 80 degrees S, for 60 m. The massive barite is pale grey-white in colour with poorly developed bedding of carbonate- and pyrite-rich layers, 1 to 2 mm thick, that make up <10% of the rock. Gold assays are generally <400 ppb Au (Patterson, 1984). Barite forms the major constituent of the zone and assay results greatly exceeded visual estimates. Barite grades calculated across all the trenches were estimated between 25.23% Ba over 3.75 m to 10.86% Ba over 6.1 m. A series of grab samples taken prior to the trenching returned assay values of up to 37.74% barite and 0.016 oz/t Au. A grab sample taken by George Patterson. Regional Geologist (O.M.N.R.), Thunder Bay yielded a value of 0.12 oz/t Au but this was not repeated in the systematic trench sampling by Northern Eagle (Assessment file 42D09NE0184).



Mineral Record Details

References

Book - Canadian Mines Handbook 1983-84, N Eagle

Publication Number: CMH 1983-84 Page: 261  Date: 1996

Author:

Publisher Name:

Location:


Mono - Field trip guidebook to the Hemlo area

Publication Number: MP118 Page: 15  Date: 1984

Author: Patterson G.C.

Publisher Name: Ontario Geological Survey

Location:


Book - Northern Miner 83-11-17, N Eagle, p. 23

Publication Number: NMINER Date: 1996

Author:

Publisher Name: Northern Miner

Location:


Compend - Report of activities, 1983, Regional and Resident Geologists

Publication Number: MP117 Page: 77  Date: 1984

Author: Kustra C.R.

Publisher Name: Ontario Geological Survey

Location:


Book - Northern Miner 83-11-24, N Eagle p. A15

Publication Number: NMINER Date: 1996

Author:

Publisher Name: Northern Miner

Location:


MonoMap - Geology of the Heron Bay area, District of Thunder Bay

Publication Number: R218 Date: 1982

Author: Muir T.L.

Publisher Name: Ontario Geological Survey

Location:


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