Mineral Deposit Inventory for Ontario

Ministry of Energy, Northern Development and Mines

Permanent Link to this Record: MDI52O08SW00003

Deposit: MDI52O08SW00003

General

Mineral Deposit Identification
Deposit Name(s) Ohman Trench Area No. 3 - 1987, Little Ochig Lake #2 - 1988
Related Deposit Type None
Deposit Status occurrence
Date Created 1990-Nov-29
Date Last Modified 2020-Jun-16
Created By Q Unknown
Revised By T Pettigrew

Commodities

Primary Commodities: gold

Location

Township or Area: Little Ochig Lake Area

Latitude: 51° 18' 37.73"    Longitude: -90° 20' 10.52"

UTM Zone: 15    Easting: 685649   Northing: 5687722    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52O08SW

Point Location Description: Sample location 8230 on map in Assessment report 52O08SE0027

Location Method: based on assessment

Source Map: EMR 1976 PICKLE LAKE - EDITION

Sources Map Scale: 1:25 000

Access Description: This occurrence is located about 20 km south-southwest of Pickle Lake. It is exposed in a trench on the west shore of a small pond, 1.1 km southeast of the south end of Little Ochig Lake. Access to this occurrence is by helicopter or by appropriately equipped aircraft to Little Ochig Lake and then a traverse overland.

Exploration and Mining History

1987: Power Explorations Inc. conducted ground mag and EM surveys over a claim group covering this occurrence. 1988: Power Explorations Inc. did geological mapping, lithogeochemical sampling and trenching on their claim group. The occurrence was discovered during this time. 1988-89: Power Explorations Inc., in joint venture with Champion Gold Resources Inc., completed a 32-hole, 3318.17 m, diamond-drilling program on a claim group covering this occurrence, including 1 DDH totalling 126 m on this showing.

Assessment Work on File

Assessment Work on File
Office File Number   Online Assessment File Identifier   Online Assessment File Directory  
52O08SW-0029     52O08SW0002     Open
2.12145     52O08SE0027     Open
2.10984     52O08SW0008     Open

Geology

Province: Superior

Subprovince: Uchi

Belt: Meen-dempster

Geological Age: Neoarchean   

Tectonic Assemblage: Confederation

Mineral Deposit Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
vein 1 quartz contains
felsic intrusive 2 qtz vein in shear zone shear zone host
mafic metavolcanics 3 near

Lithology Comments

12/17/1996 (B Nelson) - This occurrence is a quartz vein occupying a shear fracture, in a narrow felsic sill which cuts pillowed mafic metavolcanics.

Mineralization

Deposit Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Habit Description
1 pyrite economic ore
2 pyrrhotite economic ore
3 chalcopyrite economic ore

Mineralization Comments

12/17/1996 (B Nelson) - A grab sample of the quartz vein returned 1374 pb Au.

Alteration Comments

12/17/1996 (B Nelson) - Not known.

Mineral Deposit Details

Deposit Classification
Rank Classification            
1 lode (gold)
Deposit Characteristics
Rank Characteristic            
1 vein

References

Publication - Mineral Deposits of the Central Portion of the Uchi Subprovince, p. 371-372

Publication Number: OFR5869    Date: 1993

Author: Seim, G.W.

Publisher Name: OGS


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Ministry Contact Information

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