Mineral Deposit Inventory for Ontario

Ministry of Energy, Northern Development and Mines

Permanent Link to this Record: MDI000000001341

Deposit: MDI000000001341

General

Mineral Deposit Identification
Deposit Name(s) Sb Zinc - 1986
Related Deposit Type None
Deposit Status occurrence
Date Created 2012-Jan-09
Date Last Modified 2019-Aug-16
Created By A Mckee
Revised By T Pettigrew

Commodities

Primary Commodities: zinc

Secondary Commodities: copper, gold

Location

Township or Area: Granite Bay Area

Latitude: 53° 0' 18.94"    Longitude: -93° 19' 49.73"

UTM Zone: 15    Easting: 477824   Northing: 5872907    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid:

Point Location Description: Location on Figure 5 in assessment file 53F03SW2001

Location Method: based on assessment

Access Description: 225 km North of Red Lake and 70 km SE of the Manitoba-Ontario boundry. Sandy Lake settlement is 7 km north, served by regular airline flights.

Exploration and Mining History

1937: mapping completed by the Ontario Department of Mines. 1986: JVX Ltd completed exploration in the area and discovered the showing. 1990: L.D.S. Winter reviewed the Sandy Lake properties for Goldeye Explorations. 2002: Goldeye Explorations Ltd. conducted stripping, mapping, sampling, and loop EM surveys. 2015: GPM Metals Inc. conducted prospecting and a magnetic/VTEM survey.

Assessment Work on File

Assessment Work on File
Office File Number   Online Assessment File Identifier   Online Assessment File Directory  
RL 53F03SW / 2.28149     53F03SW2001     Open
2.56795     20000014175     Open
2.57530     20000013595     Open

Geology

Province: Superior

Subprovince: Sachigo

Belt: Sandy Lake

Geological Age: Archean   

Mineral Deposit Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
mafic metavolcanics 1
metasedimentary 2 quartzite near

Mineralization

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

Mineralization Comments

01/09/2012 (A Mckee) - 2.07% Zn and 0.17% Cu highest values returned 13 grab and chip samples were collected from the showing

08/16/2019 (T Pettigrew) - The mineralization is hosted in a 2-5 m thick cherty exhalate which lies within a 16 m thick unit of volcanosediments. These sediments are generally within a basaltic sequence of flows and are positioned either just below or just above a 40 m thick unit of feldspathic quartzites. The cherty exhalate is sulphide-bearing, with pyrrhotite, pyrite sphalerite and chalcopyrite, and is interbanded with barren, biotite-rich sediment of intermediate composition. The overall bedding trend is 130 to 140 degrees with dips 70-80 NE. The Zn mineralization seems to be folded or bent at an inferred small fault (not exposed) at the east-end of the blasted pit. The bedding within the mineralization turns, within 5 m, from 130 to 090 to 070. The mineralization does not continue east of a 1 m wide unexposed depression (inferred fault location). The mineralization, pyrrhotite, pyrite, sphalerite and chalcopyrite is conformable. The sulphides occur within chert as fine disseminations, discrete layers, and fracture fillings. Traces of chalcopyrite and pyrrhotite were also noted in a 10 cm wide quartz band near the north end of the showing. Some 13 grab and chip samples were collected from the showing. Results range up to 2.07% Zn and 0.17% Cu. One anomalous gold value of 157 ppb was also returned (Assessment report 53F03SW2001).

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Ministry Contact Information

For detailed information regarding this mineral deposit please contact the Red Lake Resident Geologist District Office