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Feasibility Study and Technical Report - Pretivm

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1.2 PROPERTY DESCRIPTION AND LOCATIONThe Property is situated approximately at 56°28′20″N Latitude by 130°11′31″WLongitude, a position approximately 950 km northwest of Vancouver, 65 km northnorthwestof Stewart, <strong>and</strong> 21 km south-southeast of the Eskay Creek Mine in theProvince of BC. The Property consists of six mineral claims totalling 3,199.28 ha in area<strong>and</strong> all claims are in good st<strong>and</strong>ing until January 31, 2024.The Property <strong>and</strong> the surrounding region have a history rich in exploration for precious<strong>and</strong> base metals dating back to the late 1800s. More recently in 2009 Silver St<strong>and</strong>ardResources Inc. (Silver St<strong>and</strong>ard) began work on the Property. The 2009 programincluded drilling, rock-chip <strong>and</strong> channel sampling, <strong>and</strong> re-sampling of historical drill core.In 2010, pursuant to a purchase <strong>and</strong> sale agreement between Silver St<strong>and</strong>ard ResourcesInc. (Silver St<strong>and</strong>ard), (as the seller) <strong>and</strong> <strong>Pretivm</strong> (as the buyer), Silver St<strong>and</strong>ard sold to<strong>Pretivm</strong> all of the issued shares of 0890693 BC Ltd., the owner of the Project <strong>and</strong> theadjacent Snowfield Project.1.3 GEOLOGY AND MINERALIZATIONThe Property is largely underlain by volcano-sedimentary rocks of the Lower JurassicHazelton Group. These rocks unconformably overlie volcanic arc sedimentary rocks ofthe Upper Triassic Stuhini Group along the westernmost part of the Property. HazeltonGroup rocks on the Property include hornblende <strong>and</strong>/or feldspar-phyric volcanic (latite)flows, <strong>and</strong> pyroclastic fragmental rocks, locally derived heterolithic volcanic pebble toboulder conglomerate, volcanic s<strong>and</strong>stone, siltstone <strong>and</strong> mudstone.The Hazelton Group volcano-sedimentary rocks are interpreted as having been depositedin an extensional structural regime, proximal to a basin margin growth fault (or series ofgrowth faults), owing to the presence of complicated lateral facies variations within thevolcanic pile <strong>and</strong> the diachronous <strong>and</strong> immature nature of the rock units. The Brucejackfault, which forms a distinct topographical feature across the Property, is currentlyinterpreted as being the reactivated expression of one of these basin margin structures.Alteration on the Property is characterized by variable, but generally intensely quartzsericite-pyritealtered rocks that define a distinctive <strong>and</strong> continuous north-south arcuate(west-concave) b<strong>and</strong> of gossanous rocks that is up to several hundreds of metres wide,<strong>and</strong> approximately 5 km in strike (north-south) extent. Quartz-sericite-pyrite alteration isbroadly spatially associated with the Brucejack Fault <strong>and</strong> the unconformity between theStuhini <strong>and</strong> Hazelton Group rocks, which suggests that these structures (the palaeogrowthfault zone in the case of the Brucejack Fault) may have acted as important fluidconduits during hydrothermal alteration <strong>and</strong> mineralization.Gold (± silver) mineralization is hosted in predominantly sub-vertical vein stockwork <strong>and</strong>subordinate vein breccia systems of variable intensity, throughout the alteration b<strong>and</strong>.The stockwork systems are relatively continuous along strike (several tens of metres toseveral hundreds of metres) <strong>and</strong> are characterized by the presence of millimetre- todecimetre-scale transitional meso- to epithermal veins of quartz-adularia, quartz-Pretium Resources Inc. 1-2 1291990200-REP-R0012-02<strong>Feasibility</strong> <strong>Study</strong> <strong>and</strong> <strong>Technical</strong> <strong>Report</strong> on the BrucejackProject, Stewart, BC

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