Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A10SW00068

Record: MDI42A10SW00068

General

Mineral Record Identification
Record Name(s) Pominex Zone - 1984, Ovd AQ-81-10 - 1981
Related Record Type Simple
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 2002-Jul-25
Date Last Modified 2023-Aug-03
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Macklem

Latitude: 48° 32' 3.05"    Longitude: -80° 50' 9.1"

UTM Zone: 17    Easting: 512117   Northing: 5375688    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42A10SW

Point Location Description: Approximate center of the East Zone

Location Method: Based on Assessment

Access Description: Access is gained via Gibson Lake road that leads South off of Highway 101.



Exploration History

1979-92 Asarco Exploration Company of Canada- OVD-77-11 520 ft., DD-20-6270m, ground geophysics. 1983-84: Pominex Ltd. - mapping, DD-14-3347 m. 1987: Noranda Exploration Company Limited: DD-4-1267 m, ground geophysics. 1995: Echo Bay Mines Ltd. property acquisition. 2003: Echo Bay Mines Ltd./Kinross Gold Corporation - DD-20-4191m


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-1959/2.4684 42A10SW0079 42A10SW0079
T-1959/ 2.4685 42A10SW0019 42A10SW0019
T-1959/2.5957 42A10SW0225 42A10SW0225
T-1959/2.3092 42A10SW0249 42A10SW0249
T-1959/ 2.3510 42A10SW0247 42A10SW0247
T-1959/ 2.3608 42A10SW0022 42A10SW0022
T-1959/ OM92-013 42A10SW2001 42A10SW2001
T-4883/ 2.26456 42A10SW2032 42A10SW2032
T-4906/2.26428 42A10SW2033 42A10SW2033
T-3035 / OM87-5L-252 42A10SE0058 42A10SE0058
T-3081/ 63.4383/ OM83-5C-246 42A10SW0285 42A10SW0285
T-1959/2.4479 42A10SW0242 42A10SW0242

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Geological Age: Archean  



Geology Comments

Dec 07, 2005 (G Seim) - The Pominex Deposit is contained within a felsic feldspar porphyry dike along the contact of mafic metavolcanic rock to the south and ultramafic rocks to the north. The dike is about 60 m wide, strikes 080/70S The dike has sharp contacts and contains inclusions of pillow lava. The dike is sub parallel to the Gold Island - Aquarius fault located about 100 m to the north.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Ultramafic-Unsubdivided 1 Serpentinized Footwall
Porphyry-unsubdivided 2 Felsic - Felspar Phenocrysts Host
Mafic lava flow-unsubdivided 3 Basalt Pillowed And Massive Flows Hanging Wall

Lithology Comments

Jun 25, 2013 (G Seim) - The felsic feldspar porphyry is light-grey to green, very hard and consists of an aphanitic groundmass with scattered feldspar phenocrysts. Hydrothermal alteration locally bleaches out the phenocrysts.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
3ArsenopyriteEconomicOre
1PyriteEconomicGangue
4PyrrhotiteEconomicGangue
SilicaAlterationSilicification1StrongReplacement
SericiteAlterationSericitization2MediumReplacement

Mineralization Comments

Jun 25, 2013 (G Seim) - A gold-bearing felsic feldspar porphyry about 60 m wide strikes 080º and has been traced for about 2 km. Significant gold values were intersected in drilling over a length of 1600 m length of the dike centred south of Homestead Lake. The central main zone of gold mineralization ranges between 8 and 15 m in width with parallel subsidiary zones. Better gold concentrations were intersected below the 175 m level. Typically, the core of the main gold zone is silicified, white in colour, fractured and contains about 10 percent quartz stringers and 1 percent partially oxidized pyrite. The mian zone is haloed by partially silicified, less fractured, grey-green porphyry containing only traces of disseminated pyrite.


Jun 25, 2013 (A Wilson) - Typical assays ranged from 0.002 oz/t Au over 5 feet to 0.008 oz/t Au over 5 feet. Anomalous values of 1.8 oz/t Au over 1.2 ft were obtained from DAQ80-2. Assays from the 2003 diamond drilling program completed by Kinross returned values ranging from 1.05 g/t Au over 1 m to 6.62 g/t Au over 1 m in P-03-15.



Mineral Record Details

Site Visit Information

Date: Aug 23, 2002

Geologist: G Seim

Notes: Some drill core from the Pominex Ltd. drilling is stored at the Timmins outdoor core storage facility. The Pominex Deposit does not outcrop. Diamond drill core from hole 84-17 was examined on July 31/02. This hole was drilled from the hanging wall mafic metavolcanic rocks through the felsic feldspar porphyry and then into the footwall ultramafic rocks. Toward the contact with the porphyry, the mafic metavolcanic rocks becomes silicified and less calcitic. Pillow selvedges are noted to contain clots of pyrite, epidote, carbonate and minor purple quartz. Silicification increases toward the contact and is evidenced by - candy striping - of the drill core. The entire intersection of feldspar porphyry was split and assayed, but the assays were never filed with the drill logs. The description of porphyry as noted in the drill log is accurate, but visible gold noted in 2 sections could not be relocated. The top of the porphyry is grey-green in colour, moderately silicified, fractured and contains 1 percent fine, disseminated, euhedral pyrite. The - main zone - of gold mineralization is grey to white in colour, intensely silicified, intensely fractured, but does not contain an appreciably greater concentration of disseminated pyrite. Locally quartz veining comprises more than 50 percent or the rock over a 1.5 m interval. Below the - main zone - the porphyry becomes increasingly less altered and fractured and contains only traces of pyrite.



Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Central Zone 1992 Unclassified 1700000 1:10,000 plan submitted with OM92-13 in T-1959 1.7million tons at 0.047 oz/t gold to a depth of 200 m Gold 0.047 Ounce per Ton
West Zone 1992 Unclassified 4400000 1:10,000 plan submitted with OM92-13 in T-1959 4.4 million tons at 0.034 oz/t gold to a depth of 200 m Gold 0.034 Ounce per Ton
Total Zone 1992 Unclassified 10100000 1:20,000 plan submitted with OM92-13 in T-1959 10.1 milliion tonnes at 0.043 oz/t gold to a depth of 200 m Gold 0.043 Ounce per Ton
East Zone 1992 Unclassified 4000000 1:10,000 plan submitted with OM92-13 in T-1959 4.0 million tonnes at 0.50 oz/t gold to a depth of 200 m Gold 0.50 Ounce per Ton

References

Article - Timmins Resident Geologist's District - 1989

Publication Number: MP147.012 Page: 244  Date: 1997

Author: Luhta L.E., Sangster P.J., Ireland J.C., Hamblin C.D., Bradshaw M.P.

Publisher Name: Ontario Geological Survey

Location:


Article - Timmins Resident Geologist area, Northern Region

Publication Number: MP122.005 Page: 159  Date: 1997

Author: Luhta L.E., Sangster P.J.

Publisher Name: Ontario Geological Survey

Location:


Compend - Report of Activities 1992, Resident Geologists

Publication Number: MP161 Page: 253  Date: 1993

Author: Fenwick K.G., Pitts A.E., Newsome J.W.

Publisher Name: Ontario Geological Survey

Location:


Map - Night Hawk Lake area, Cochrane District

Publication Number: M2222 Scale: 1:31,680    Date: 1971

Author: Leahy E.J.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


MonoMap - Geology of the Night Hawk Lake area, District of Cochrane

Publication Number: R096 Date: 1971

Author: Leahy E.J.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


Map - Geological Compilation of the Lake Abitibi Area, Abitibi Greenstone Belt

Publication Number: P3398 Scale: 1:100,000    Date: 1999

Author: Ayer J.A., Berger B.R., Trowell N.F.

Publisher Name: Ontario Geological Survey

Location:


Article - Timmins Resident Geologist's District - 1988

Publication Number: MP142.012 Page: 246  Date: 1997

Author: Luhta L.E., Sangster P.J., Draper D.M., Ireland J.C., Bradshaw M.P., Hamblin C.D.

Publisher Name: Ontario Geological Survey

Location:


Report an Error

We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.


Terms of Use

Please review our Terms of Use agreement for this data product.


Ministry Contact Information

For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office