Mineral Deposit Inventory for Ontario

Ministry of Energy, Northern Development and Mines


Deposit: MDI000000000249


General

Mineral Deposit Identification
Deposit Name(s) East Bay Joint Venture (gaz Gold Zone) - 2005
Deposit Status developed prospect with reserves
Date Created 2007-Feb-26
Date Last Modified 2014-Feb-11
Created By D Saunders
Revised By S Ali

Commodities

Primary Commodities: gold


Location

Township or Area: Bateman

Latitude: 51° 10' 28.79"    Longitude: 93° 40' 36.27"

UTM Zone: 15    Easting: 452692   Northing: 5669466    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52N04NE

Point Location Description: DDH collar for EB05-147 at approx centre of GAZ zone from AF 2.31840

Location Method: data compilation


Exploration and Mining History

1945 - McBuck Red Lake Mining Limited completed mapping, drilling and trenching focused on finding extensions of the McFinley Mine mineralization. 1946: Marshall Red Lake Gold Mines completed a mag survey and drilled three holes. 1952: Bright Red Lake Gold Mines drilled 3 holes, without releasing the results. 1981: Placer Dome Canada Ltd. staked 16 claims based on results from a government airborne geophysical survey. They followed up with ground geophysics and diamond drilling which led to staking 37 additional claims. Little work was recorded on the ground until a 1986 diamond drill program which returned 3.1 g/t Au over 0.5 m. During the early 1990's Placer completed ground magnetic, IP and EM surveys and additional diamond drilling. In 1992, a drill hole intersected 15.15 g/t Au over 0.61 m associated with a interesting geology and alteration package. Follow-up drilling returned anomalous results in 5 of the 6 drill holes. This work and subsequent work targeted Campbell Mine style mineralization at the contact of the mafic volcanic rocks and the East Bay serpentinite, particularly in the East Bay Deformation (Shear) Zone. In 2003, Placer Dome and Wolfden entered into a 50:50 joint venture agreement for further exploration and development of the property. An inferred resource estimate was released by Placer Dome in 2005 comprising 1,399,105 tonnes, with an average grade of 8.00 g/t, for a total resource of 326,407 contained ounces of Au. Subsequent diamond drilling in 2003-2005 on 25 m centres was used to calculate a new resource estimate which has yet to be made public (Feb 2007). To the end of 2005, 165 diamond drill holes have been drilled on the East Bay property, for a total of 59,546 m.


Assessment Work on File

Assessment Work on File
Office File Number   Online Assessment File Identifier   Online Assessment File Directory  
RL AF# BATEMEN TWP #9; AFRO # 63.4068     52N04NE8123     Open
RL AF # BATEMAN TWP #35; AFRO# 2.2074     52N02SE9938     Open
RL AF # BATEMAN TWP # 64        
RL AF # BATEMAN TWP # 80; AFRO # 2.10950     52N04SE0021    
RL AF # BATEMAN TWP # 89; AFRO # 2.13574     52N04NE0020     Open
RL AF # BATEMAN TWP # 93; AFRO # 2.14198     52N04NE0018     Open
RL AF # BATEMAN TWP # 96        
RL AF # BATEMAN TWP # 102; AFRO # 2.16467     52N04NE0062     Open
RL AF # BATEMAN TWP # 108; AFRO # 2.17311     52N04NE0103     Open
RL AF # BATEMAN TWP # 109; AFRO # 2.17335     52N04NE0114     Open
RL AF # BATEMAN TWP # 111; AFRO # 2.17334     52N04NE0116     Open
RL AF # BATEMAN TWP # 114; AFRO # 2.18293     52N04NE2003     Open
RL AF # BATEMAN TWP # 126; AFRO # 2.21053     52N04NE2018     Open
RL AF # BATEMAN TWP # 140; AFRO # 2.27407     52N04NE2025     Open
RL AF # RL5032; AFRO # 2.32026        
RL AF # RL5033, AFRO # 2.32027        
RL AF # RL5039; AFRO # 2.31840        
RL AF # RL5047; Non-assessment        

Geology

Province: Superior

Subprovince: Uchi

Belt: Red Lake

Geological Age: Archean   

Structure
Structure Name Scale Strike Dip Trend Plunge
East Bay Deormation (shear) Zone local 40

Mineral Deposit Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
vein 1 quartz-carbonate host
komatiite 2 serpentinized host
mafic metavolcanics 3 tholeiitic basalt massive to pillowed adjacent

Mineralization

Deposit Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Habit Description
1 gold economic ore
2 pyrite economic and alteration disseminated
3 arsenopyrite economic and alteration disseminated
silica alteration silicification 1 strong veins
chlorite alteration chloritic 2 strong replacement
dolomite alteration carbonatization 2 strong veins
biotite alteration biotitic 3 strong replacement
fuchsite alteration chloritic 4 medium veins

Mineralization Comments

02/11/2014 (S Ali) - Assay: 2013 DDH program 115.46 g/t Au across 0.6 m (3.37 oz/ton across 2.0 ft) in FW2 Zone in hole EBJV13202. This hole is drilled down-dip of previously drilled holes EBJV12196 that intersected 58.36 g/t Au across 1.0 m (1.70 oz/ton across 3.3 ft) and EBJV12198 that intersected 69.23 g/t Au across 0.9 m (2.02 oz/ton across 3.0 ft). - 10.26 g/t Au across 3.0 m (0.30 oz/ton across 9.8 ft) in a new area approximately 1 km north of the main Footwall Zone. (News Release, Premier Gold Mines, Jun 27, 2013)


Mineral Deposit Details

Deposit Classification
Rank Classification            
1 lode (gold)

Mineral Zones - Size and Shape


Zone Name: Green Altered Zone (GAZ) - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
unknown

Ore Reserves Data
Zone Year Category Tonnes Reference Comments Commodities
G2a 2005 inferred mineral resource 306845 Placer Dome press release Feb 23, 2005 Grade: 10.47 g/t Au. Anonther resource estimate has been calculated based on DD on 25 m centres, but has not been released (as of Feb 2007).
G2 2005 inferred mineral resource 179320 Placer Dome press release Feb 23, 2005 Grade: 7.74 g/t Au. Anonther resource estimate has been calculated based on DD on 25 m centres, but has not been released (as of Feb 2007).
G1a 2005 inferred mineral resource 35810 Placer Dome press release Feb 23, 2005 Grade: 9.83 g/t Au. Anonther resource estimate has been calculated based on DD on 25 m centres, but has not been released (as of Feb 2007).
G1 2005 inferred mineral resource 609510 Placer Dome press release Feb 23, 2005 Grade: 6.67 g/t Au. Anonther resource estimate has been calculated based on DD on 25 m centres, but has not been released (as of Feb 2007).
G0 2005 inferred mineral resource 267620 Placer Dome news release Feb 23, 2005 Grade: 8.12 g/t Au. Anonther resource estimate has been calculated based on DD on 25 m centres, but has not been released (as of Feb 2007).
Green Altered Zone (gaz) - All Zones 2005 inferred mineral resource 1399105 Placer Dome (CLA) Ltd Press release: Feb 23, 2005; OFR6180 Grade: 8.00 g/t Au; Anonther resource estimate has been calculated based on DD on 25 m centres, but has not been released (as of Feb 2007).

References

Publication - Geology and Mineral Deposits of the Red Lake Area, ODM, Annual report 1940, v. 49, pt. 2, 231 p. (Horwwod 1945)

Publication Number: ODM ARV49-02   

Publisher Name: ODM

Reference Location: GeologyOntario


Publication - Geology of the southern half of Bateman Township, District of Kenora, OGS Geological Report #6, 31 p. (Ferguson 1962)

Publication Number: OGS R006   

Publisher Name: OGS

Reference Location: GeologyOntario


Map - Bateman Township

Publication Number: M2016    Scale: 1:12 000   

Publisher Name: OGS

Reference Location: GeologyOntario


Map - Geology of Bateman Township

Publication Number: OGS P1569A    Scale: 1:12 000   

Publisher Name: OGS

Reference Location: GeologyOntario


Publication - Technical Report on East Bay Joint Venture for Wolfden Resources (Harron 2005)

Reference Location: filed on SEDAR




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Ministry Contact Information

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