The Silver Hope property hosts eight (8) known mineral occurrences, including meso-thermal ‘Equity-Style’ Ag-Cu, low- and high-sulphidation epithermal Au-Ag, polymetallic veins (Ag-Pb-Zn ± Au), and porphyry Cu-Mo.
In addition to the advanced-stage Main Horizon, several peripheral targets are being actively explored for porphyry potential.
The Main Horizon extends southerly from the Equity Mine deposits and encompasses, from north to south on the Property, the Hope, Superstition and Gaul Zones.
Silver (Ag) Soil Geochemistry at the Silver Hope
The Hope Zone lies ~2 km along strike to the south-southwest of the Equity Main Zone near the stratigraphic contact of the sedimentary-volcanic and pyroclastic divisions of the Mount Ney Volcanics. Mineralization comprises ubiquitous fracture-filling pyrite ± quartz, calcite, chlorite, chalcopyrite and tetrahedrite which locally form sub-metre zones of dense stockwork, micro fracturing and brecciation. Higher fracture density is associated with more intense alteration, brecciated veining, and greater diversity in sulphide minerals. The highest-grade Cu-Ag mineralization occurs in a series of parallel metre-scale zones of moderately to steeply west-dipping breccia veins and dense stockworks which host semi-massive tetrahedrite ± pyrite ± chalcopyrite, sphalerite and galena. Anomalous amounts of Au, As, Sb, and locally, Bi are present. Hope Zone was drilled extensively in 1986, as well as in 2007 when one of two holes with significant mineralization returned 0.69% Cu and 333 g/t Ag over 9.35 m.
Mineralization at the Superstition Zone, ~150 m along strike of Hope, consists of chalcopyrite, sphalerite, arsenopyrite and tetrahedrite veinlets cutting variably sericitized and silicified dust tuffs. Pyrite is ubiquitous and often accompanied by arsenopyrite, chalcopyrite, and sphalerite. Minor galena and molybdenite occur in fractures and tension gashes in localized breccias. Superstition was drilled in 1986 and several subsequent campaigns. Significant mineralization in SH11-12 (0.43 g/t Au, 29 g/t Ag and 0.2% Cu over 76 m) implies a strike length of over 500 m.
Gaul (Silver Hope) Zone
The Gaul occurrence is similarly hosted by the Lower Cretaceous Skeena Group pyroclastic sequence, predominantly the middle division: a heterogeneous sequence of tuff, breccia and reworked pyroclastic debris. Sulphide mineralization occurs as fracture fillings, within quartz-carbonate veins, and disseminated in wall rock. Mineralization is comprised of low-grade chalcopyrite and tetrahedrite with occasional narrow sections of high-grade chalcopyrite. Sphalerite and rarely galena occur locally; pyrite is ubiquitous. Sulphide mineralized veins are typically discordant, forming angles of 60 – 80° to bedding. Chalcopyrite mineralization increases locally with tetrahedrite and occasionally sphalerite mineralization usually occurring in the thicker quartz-carbonate veining. Hole SH14-02 intersected 61.25 m of 0.05 g/t Au, 55.29 g/t Ag, and 0.29% Cu. Hole SH14-03 intersected 7.40 m of 0.17 g/t Au, 25.89 g/t Ag, and 0.29% Cu, as well as 90.70 m of 0.04 g/t Au, 8.79 g/t Ag, and 0.15% Cu. Drilling at Gaul in 2020 identified high-grade Cu mineralization, with SH20-06 yielding 10.00 m of 65 g/t Ag and 2.33% Cu as well as a second interval of 25.0 m grading 11 g/t Ag and 0.50% Cu.
West Horizon Cu-Mo Porphyry
The West Horizon comprises Cu-Mo porphyry mineralization in a monzonite stock of the Paleocene Nanika Intrusive suite that traverses the western margin of the Skeena stratigraphic package. It is exposed at surface only as float and root jack. Drilling of the West Horizon in 2010 and 2011 yielded several long (~200 m) intercepts of ~0.3% Cu and 0.015 % Mo over a strike-length of ~ 1 km (Gruenwald, 2011).
Another area for further exploration lies west of a deviation in the north end of the Cu-Mo porphyry Nanika stock, where two historic soil samples yielded up to 15.3 g/t Ag, 45 ppb Au, and 767 ppm Cu. At the Sam occurrence, ~2 km west, metre-scale massive sulphide veins and associated mineralization do not have a known intrusive source (BC Minfile 093L 260).
Copper (Cu) Soil Geochemistry at the Silver Hope
The East Horizon is underlain by dacitic tuffs, sedimentary rocks and possible volcanic flows that are thought to be prospective hosts for Cu‐Ag massive sulphide mineralization such as that at Equity (Alldrick & Lin, 2007; Fig. 5). Strata are subvertical and include massive to laminated dacitic dust, crystal, ash and lapilli tuffs, argillite with primary pyrite ± pyrrhotite, and coarse-grained heterolithic sedimentary breccia and conglomerate. Observed deformation in bedded dust tuffs ranges from open flexures (wavelength 1‐1.5 m) to very small-scale isoclinal folds and disrupted bedding. A prominent north-trending IP chargeability anomaly delineates the area and the presence of pyrite, arsenopyrite, tetrahedrite, galena, and sphalerite have been confirmed by rock sampling and drilling (Gruenwald, 2019). The single drill hole, SH11-08, yielded locally elevated As, and one occurrence of 498 g/t Ag, 0.22% Cu, and >100 ppm W over a 2.01 m gouge-bearing fault zone (388.72 – 390.73 m).
The Allin occurrence is located 4.4 km east of Equity Main in an area underlain by andesites and trachyandesite flow breccias in the basal part of the Goosly Lake Volcanics. Mapping along Allin Creek shows the presence of a small body of quartz microdiorite and some highly altered gossanous volcanics that are probably dacitic. Several geochemical and geophysical surveys were conducted over the Allin claim area during the time of the Equity Silver discovery. Drilling in 1987, within an area of coincident geochemical and geophysical anomalies, intersected moderately to strongly altered (quartz-sericite-pyrite and chlorite-calcite-pyrite) volcanic rocks with up to 15 % disseminated and fracture-controlled pyrite and pyrrhotite with minor to trace sphalerite, chalcopyrite, arsenopyrite, galena, molybdenite and tetrahedrite. Glacial till sampling in the area yielded highly anomalous base, precious metal, and pathfinder elements (Ferbey, 2011).
The 2021 field work explored several targets throughout the property but focused on the central portion of the property between the Equity East and Allin targets. Chargeability anomalies were found at both target areas, roughly coinciding with mapped intrusions and soil geochemical anomalies. Historic drill holes in the Allin target area were drilled ~1 km east of the 2021 chargeability anomaly. Attempts to follow-up on ore-grade Au-Cu float boulders from 1990 were unsuccessful, nonetheless, till geochemical anomalies south of the Allin target area remain unexplained (Ferbey, 2011). The chargeability anomalies at both Allin and Equity East are comparable in size and intensity to the 2011 chargeability anomaly that underlies and surrounds the Main Horizon. Finlay plans to test the Allin target with diamond drilling in its 2022 exploration program.
The Goosly Lake intrusion, 4.8 km east of Goosly Lake, is a quadrate body, approximately 3.2 km on a side, which cuts Early Mesozoic lavas and pyroclastic rocks with some argillite. The intrusion seems to be the source of trachyandesite and trachyte of the Eocene Goosly Lake volcanics.
The Dina occurrence, 350 m west of Goosly Lake, comprises pyrite, tetrahedrite and chalcopyrite disseminated in lapilli tuff and breccia as well as concentrated along steeply dipping bedding planes in argillite. A drillhole from 1970 intersected 0.22 % Cu and 20.23 g/t Ag in a sequence of dacite ash tuff and dust tuffs over 21.3 m from 39.6 to 60.9 m (Minfile 093L 313).
The 2020 and 2021 exploration campaigns have identified the area east of the Equity Main Zone underlain by the Goosly Intrusive complex as a prospective target area. A property-wide airborne magnetic survey in 2020 delineated a regional magnetic high anomaly associated with the intrusive suite. Soil sampling identified a coincident multi-element geochemical anomaly consisting of elevated Ag, As, Cu, Mo, Pb, and Zn in addition to several pathfinder elements (Hg, Bi, Te, Se, +/- Sb and +/- Tl). Rock samples collected included gabbro and tuffs, locally strongly oxidized with moderate to strong quartz, sericite and pyrite alteration. Minor quartz veining was present in some rock sampled with pyrite, galena and chalcopyrite. The best assays for the rock samples were 2.97 g/t Ag, 50 ppb Au, 1,095 ppm Cu, 2,980 ppm Pb and 3,360 ppm Zn. The target area is also identified by a prominent 5-km-long, NNE trending airborne ZTEM geophysical anomaly, similar to the one reflecting the Main Horizon.
In 2021, ground-based IP surveys outlined a sizeable chargeability and resistivity anomaly over ~ 1 x 2 km, roughly coincident with the magnetic high, ZTEM anomaly, and multi-element geochemical anomaly. Finlay plans to test the Equity East target with diamond drilling in its 2022 exploration program.
Airborne Magnetics (TMI) Geophysics with Goosly Intrusive Suite on the Silver Hope
Molybdenum (Mo) Soil Geochemistry at the Silver Hope