Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001787

Record: MDI000000001787

General

Mineral Record Identification
Record Name(s) Mere - 2001, Titan Property - 2020
Related Record Type
Related Record(s)
Record Status Occurrence
Date Created 2014-Oct-27
Date Last Modified 2023-May-04
Created By
Revised By

Commodities

Primary Commodities: Copper, Nickel, Palladium

Secondary Commodities: Platinum, Gold, Cobalt



Location

Township or Area: Gillard Lake Area

Latitude: 49° 38' 19.8"    Longitude: -89° 52' 24.35"

UTM Zone: 16    Easting: 292545   Northing: 5502441    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52H12NW

Point Location Description: Trench

Location Method: Data Compilation

Access Description: The Mere occurrence can be accessed via Highway 811 and is located immediately southwest of the road.



Exploration History

2001: Prospecting, trenching, ground magnetic and electromagnetic surveys, and soil geochemistry surveys by Berland Resources Ltd. 2002: Soil geochemical survey by Lithic Resources Ltd. 2003: Induced polarization survey, bedrock and soil sampling and diamond drilling by North American Palladium Ltd. 2010: Airborne magnetic and electromagnetic surveys by Ringbolt Ventures Ltd. 2020: Impala Canada Ltd. flew an airborne EM and mag survey. 2021: Impala Canada carried out prospecting, sampling, and a magnetotelluric survey.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.20983 52H12NW2001 52H12NW2001
2.22964 52H12NW2002 52H12NW2002
2.22861 52H12NW2003 52H12NW2003
2.24738 52H12NW2004 52H12NW2004
2.25956 52H12NW2005 52H12NW2005
2.26728 52H12NW2006 52H12NW2006
2.28328 52H12NW2007 52H12NW2007
2.28329 52H12NW2008 52H12NW2008
2.25849 41I11NE2008 41I11NE2008
2.45507 20000006306 20000006306
3897 20000019392 20000019392
4301 20000019980 20000019980
4343 20000020041 20000020041



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Gabbro 1
Pyroxenite 2
Breccia-unsubdivided 3

Lithology Comments

Oct 29, 2014 (Mark Puumala) - The following description of the Mere showing is provided by Schnieders et al. 2002 OFR6081): The host rock is predominantly equigranular hornblendite to coarse-grained, hornblende leuco and melagabbro, locally cut by reticulate leucogabbro pegmatite veins and hornblendite dikes. The pink feldspars are typically recessively weathered. The initial discovery was facilitated by a prominent gossanous face on a large outcrop knob in a relatively flat, sandy outwash plain. Weakly magnetic, fine-grained disseminated sulphides may reach 1%. Scattered clots of magnetite + epidote + secondary amphibole were also noted.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyrrhotiteEconomicOre
2ChalcopyriteEconomicOre
3PyriteEconomicOre

Mineralization Comments

Oct 29, 2014 (Mark Puumala) - The most significant mineralization that is observed at the Mere showing occurs in a 3 x 2 metre area that containis2-3% pyrrhotite (and pentlandite), chalcopyrite, and pyrite. Sulphide mineralization consists of interstitial blebs and clots up to 0.3 centimetres in size that are concentrated within a pod of pegmatitic leucogabbro. Alteration at the showing consists of weak epidote alteration of feldspars, introduced K feldspar grains, and weak chlorite/actinolite development. Magnetite occurs locally as coarse clots interstitial to the mafic minerals. Assays of grab samples collected from the Mere showing have returned values of up to 739 ppb Pd, 231ppb Pt, 131 ppb Au, 1249 ppm Ni and 3159 ppm Cu. (McCrindle and Fingler 2001 AFRI52H12NW2003). The best assay results for samples collected from the showing by OGS in 2001 were as follows: 385.89 ppb Pd, 112.5 ppb Pt, 493 ppm Ni and 1708 ppm Cu (Schneiders et al. 2002).


May 04, 2023 (Therese Pettigrew) - The Mere showing hosts sections of gabbro, varitextured gabbro, pyroxenite, and breccia zones of heterolithic compositions. PGE mineralization occurs in association with fine- to coarse-grained pyrrhotite-chalcopyrite-pyrite blebs in 0.1-3.0% total volume. Sample A0159015 returned 717 ppb Pd, 175 ppb Pt, 152 ppb Au, 3710 ppm Cu, 1430 ppm Ni, and 78 ppm Co (Assessment report 20000019980).



Mineral Record Details

Classification
RankClassification            
1 Mafic-Ultramafic Intrusion

References

Mono - Garden-Obonga Lake Area High Density Lake Sediment and Water Geochemical Survey, Northwestern Ontario

Publication Number: OFR6009 Date: 2000

Author: Jackson J.E., Dyer R.D.

Publisher Name: Ontario Geological Survey

Location:


Map - Precambrian Geology of the Northwest Portion of the Nipigon Embayment, Northwestern Ontario

Publication Number: P3579 Scale: 1:100,000    Date: 2006

Author: Hart T.R.

Publisher Name: Ontario Geological Survey

Location:


Data - Ontario Airborne Geophysical Surveys, Magnetic and Electromagnetic Data, Garden-Obonga Area

Publication Number: GDS1105 Date: 2000

Author: Ontario Geological Survey

Publisher Name: Ontario Geological Survey

Location:


Mono - Report of Activities 2001, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District

Publication Number: OFR6081 Date: 2002

Author: Schnieders B.R., Scott J.F., Smyk M.C., Parker D.P., O'Brien M.S.

Publisher Name: Ontario Geological Survey

Location:


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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office