Lake Aulneau

General Information

  • Property covers 3,995 ha (85 claims) and is 100% held by Harfang (24C15, 24C16, 24F02); no NSR
  • Located 125 km south of Kuujjuaq and 265 km north of Schefferville
  • Accessible by airl transportation (helicopter or floatplane)
  • 7 Ni-Cu-PGE prospects and showings inside the property limits: Marymac I, Marymac II, Island and Lepage (combined), Float, Redcliff, Nine South
  • Lithologies belong to Paleoproterozoic units of the Labrador Through; in the central portion of the New-Québec Orogen
  • Cu-Ni-PGE mineralization hosted in glomeroporphyritic gabbroic (± pyroxenitic) sills emplaced in effusive and pyroclastic volcanic rocks of the Murdoch Formation
  • 3 recent geophysical airborne surveys: 1) 2003 AeroTEM survey covering all known Cu-Ni-PGE occurrences (Mag and EM), 2) 2011 VTEM survey covering the Marymac I and II prospects as well as Float and Redcliff occurrences (Mag and EM), and 3) 2011 GDS survey (Mag and Spectrometry)
  • Last exploration phase (brief prospecting, resampling of old drillcore) in the Marymac region by Golden Valley Mines in 2003; identification of intervals with high PGE grades (eg. 2.01 g/t Pt and 10.20 g/t Pd over 0.5 m) which had never been sampled
  • No follow-up done on electromagnetic anomalies detected in 2011


Figure 1. Location of the 7 Cu-Ni-PGE prospects at Lake Aulneau


  • Historical resources published in previous exploration reports for 4 of the mineralized sites: 1,088,000 tons @ 2.02% Cu, 0.45% Ni, 1.0 g/t Pt and 3.1 g/t Pd for Lepage et Island zones combined, 1,068,000 tons @ 2.09% Cu and 0.51% Ni for the Redcliff prospect and 133,000 tons @ 2.10% Cu and 0.43% Ni for the Float prospect (resources not compliant with NI 43-101)
  • 2 main mineralization types: 1) magmatic Cu-Ni-PGE mineralization with disseminated to massive sulphides in sills, 2) late hydrothermal Cu-Au-Ag-Ir mineralization associated with quartz-carbonate veins and intense chlorite alteration
  • More than 160 drillholes done from the 1950’s to the 1980’s defined the flatten ellipsoidal shape of sulphide orebodies (dimensions range from 185 to 550 m in length; 95 to 205 m in width, and up to 30 m in thickness); the longest axis plunges moderately towards the northeast
  • Geoscientific compilation by St-Hilaire (2019) outlined an 18 km2 prospective area, with several unexplored targets for Cu-Ni-PGE-Au

Upcoming Exploration Programs

  • Summer field visit to reassess and resample the historical showings and drill core; prospecting to be done in selected areas
  • Convert the historical geological data into a digital database