Mineral Deposit Inventory for Ontario

Ministry of Energy, Northern Development and Mines

Permanent Link to this Record: MDI000000002323

Deposit: MDI000000002323

General

Mineral Deposit Identification
Deposit Name(s) North Caribou River Au - 1989
Deposit Status occurrence
Date Created 2019-Aug-19
Date Last Modified 2019-Aug-19
Created By T Pettigrew
Revised By T Pettigrew

Commodities

Primary Commodities: gold

Location

Township or Area: Randall Lake Area

Latitude: 52° 52' 9.65"    Longitude: -91° 5' 56.79"

UTM Zone: 15    Easting: 627948   Northing: 5859429    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 53B14SE

Point Location Description: Figure 10 in OFR5698

Location Method: data compilation

Exploration and Mining History

1979: St. Joseph Explorations Ltd. drilled 1 DDH. 1984: OGS staff discovered and sampled the showing during a mapping program. 1985: Moss Resources carried out mapping, sampling, VLF-EM and magnetic surveys. 1988: Power Explorations drilled 1 DDH totaling 235.37 m.

Assessment Work on File

Assessment Work on File
Office File Number   Online Assessment File Identifier   Online Assessment File Directory  
53B14SE0011C1     53B14SE0010     Open Open
16     53B14SE0002     Open
2.8799     53B14SE9437     Open
2.8098     53B14NE9438     Open

Geology

Province: Superior

Subprovince: Sachigo

Belt: North Caribou

Geological Age: Mesoarchean   

Mineral Deposit Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
porphyry 1 quartz host
iron formation 2 near

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 arsenopyrite economic ore
1 tourmaline economic gangue

Mineralization Comments

08/19/2019 (T Pettigrew) - At the showing location, due south of Center Lake, a grab sample from an outcrop of quartz- and sericite-altered quartz porphyry, containing disseminated pyrite, gave a value of 2870 ppb gold. A drill hole collared at this location by St. Joseph Exploration Ltd. intersected 1.5 m of quartz porphyry containing 5-10% pyrite-tourmaline veins and 350 ppb Au (Breaks et al., 1989).

References

Map - Precambrian Geology of Eyapamikama Lake Area

Publication Number: P2834    Scale: 1:31 680    Date: 1985

Author: Bartlett, J.R., Breaks, F.W., DeKemp, E.A., and Shields, H.N.

Publisher Name: OGS


Publication - The Geology of Gold Prospects in the North Caribou Lake Greenstone Belt

Publication Number: OFR5698    Date: 1989

Author: Breaks, F.W., Piroshco, D.W., and Osmani, I.A.

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