Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000002489

Record: MDI000000002489

General

Mineral Record Identification
Record Name(s) Swamp Lake - 1989
Related Record Type
Related Record(s)
Record Status Occurrence
Date Created 2021-Feb-23
Date Last Modified 2023-Aug-03
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Summers

Latitude: 49° 34' 53.04"    Longitude: -88° 1' 4"

UTM Zone: 16    Easting: 426428   Northing: 5492588    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52H09SE

Point Location Description: Map in Assessment report 42E12SW2004

Location Method: Based on Assessment



Exploration History

1989: Golden Dragon Resources Ltd. carried out mapping, stripping, sampling, and VLF-EM and IP surveys. 1992: A. Lafontaine carried out prospecting, mapping and sampling. 1994: A. Lafontaine carried out stripping and sampling. 1996: Explorations Minières du Nord Ltée optioned the property from A. Lafontaine and conducted a magnetic survey.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.18486 42E12SW2004 42E12SW2004
W9540-00182 42E12SW0043 42E12SW0043
OM92-106 42E12SW0045 42E12SW0045

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Beardmore-Geraldton

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Host
Vein 2 Quartz-Carbonate Host

Mineralization

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

Mineralization Comments

Feb 23, 2021 (Therese Pettigrew) - The Swamp Lake showing is associated with a N70 E structural lineament and consists of a massive, strongly carbonatized, mafic metavolcanic rock unit hosting parallel quartz-carbonate veins (10 cm to 25 cm wide). The host volcanic rock also displays upwards to 10 per cent ubiquitous arsenopyrite mineralization. Rock grab samples and channel samples provided the following anomalous to economic gold assay values: 170 ppb, 290 ppb, 680 ppb, 990 ppb, 10,000 ppb (0.30 oz/t Au) and >10 000 ppb (0.30 oz/t Au) (Mason et al., 1990).



Mineral Record Details

References

Article - Beardmore-Geraldton Resident Geologist's District - 1989

Publication Number: MP147.006 Page: 124-125  Date: 1997

Author: Mason J.K., White G.D., Speed A.A., Gaudino S., Sarvas P., Stott G.M.

Publisher Name: Ontario Geological Survey

Location:


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