The Hawk or Klastline occurrence is located a few kilometres west of Nuttlude Lake, just southeast of Mount Edziza Peak.
The property is underlain by Upper Triassic sedimentary and volcanic rocks which have been intruded by diorite and granodiorite of Juro-Cretaceous Age. These rocks are overlain by a thick section of Tertiary and younger basalts, andesites and latite flows of the Mount Edziza eruption.
The Upper Triassic Stuhini Group sediments consist of about 900 metres of volcanic agglomerate, greywacke, grit and chert breccia interbedded with tuffaceous siltstone. The volcanics are made up of about 1200 metres of green, purple and grey andesites with some greywackes, siltstone and conglomerate. These rocks are characterized by east trending open folds which are part of a broad anticline and syncline plunging gently to the west. Strata is intruded by northeast trending dikes of quartz monzonite related to the granodiorite plutons. It is also cut by steeply dipping northeast and northwest trending faults.
The main outcropping vein at Hawk is a narrow, mineralized structure exposed on surface over a strike length of approximately 200 metres and ranging in width from 0.5 to 1.5 metres. Historical surface sampling across the zone by Torbrit Silver Mines Ltd in 1957 yielded average values of 25.7 grams per tonne gold and 53.6 grams per tonne silver, with maximum values of 426 grams per tonne gold and 389 grams per tonne silver (as reported by Giroux, G.H and Stacey, J.R., 2016). Individual mineralized veins are reported to range from less than 10 centimeters to approximately 1.2 metres in width. The veins often contain massive sections of pyrite and arsenopyrite with lesser amounts of sphalerite, galena and chalcopyrite in quartz and calcite gangue. High gold and silver values are found where the veins are mineralized with sphalerite and/or arsenopyrite.
A small exploration drift was constructed in the late 1970s to test the depth extents of veins found on surface. Mineralization in the drift was about 70 per cent lower grade than seen at surface and narrowed to widths of less than a metre. Mineralization was considered too narrow and low-grade to warrant further work and there has been no drilling on the vein since 1980. A single historical soil line with anomalous copper and gold in soil occurs about 600 metres west of the Hawk Vein and may be indicative of vein or porphyry copper-gold mineralization.
Continuity of the vein between surface and the underground level was established but high gold values were restricted to narrow widths averaging 0.3 metre. One drill intersection from work done in 1980 yielded a high value of 93.77 grams per tonne gold over 0.45 metres. A 50-centimetre chip sample across one of the veins also assayed 45.26 grams per tonne silver, 0.87 per cent zinc and 0.43 per cent lead. Indicated reserves of the Hawk are 11,520 tonnes grading 12.0 grams per tonne gold (Prospectus, Moongold Resources Inc., October 14, 1988).
WORK HISTORY
Mineralization was first evaluated in 1957 when Torbit Silver Mines explored a vein on the north side of Hawk Creek. Shawnigan (or possibly Shawinigan) Mining and Smelting Company Ltd. restaked the property and conducted an x-ray drilling program in 1967. Newhawk Gold Mines staked the Hawk claims in 1978 and conducted a geochemical survey followed by 278 metres of drifts and crosscuts on the vein in 1979 and 1980. Nine underground diamond-drill holes totalling 430 metres were completed in 1980 also. Cominco optioned the Hawk and the adjacent Spectrum (104G 036) in 1984 and conducted soil and geophysical surveys (mag and VLF). Cominco drilled 1199 metres in 10 holes in 1988-89 (apparently on the Spectrum part of the property). Between 1987 and 1989, Monogold optioned the property and completed a program of rock and soil sampling and geophysical surveys (mag, VLF, resistivity). In 1990 and 1991, Columbia Gold Mines optioned the Hawk claims from Newhawk and, also holding the Red Dog claims, drilled 3142 metres in 26 holes and excavated 631 metres of trenches.
In 2012, Eilat Exploration Ltd had an airborne magnetic geophysical survey flown over the Spectrum property, including the Hawk area. The survey covered 352.9 kilometers of traverse lines flown at 100 metre spacing and 36.7 kilometres of tie lines spaced 1000 metres apart for a total of 389.6 kilometres.
Skeena Resources Ltd was granted 100 per cent ownership on October 27, 2014 following completion of the terms of CAPA, which required Skeena to issue an aggregate of 80 million common shares of the Company at a deemed issue price of six cents Canadian per common share. Sixty-four million of these shares were issued to Eilat, with the balance (16 million shares) issued to Keewatin.
Skeena Resources Ltd was granted 100 per cent ownership on October 27, 2014. On the Spectrum claims block and from September 2014 to the close of the last field season in October 2016, Skeena has completed: an airborne LiDAR (Light Detection and Ranging), topographic survey and lineament analysis; geological mapping; prospecting; soil and rock geochemical sampling; an IP geophysical survey; and a ground magnetics geophysical survey. In 2015, Skeena completed all nine holes n the Central Zone. Prospecting and soil sampling were mainly restricted to the East Creek and Hawk areas. Skeena collected 5 rock samples from the Hawk vein with maximum values of 0.78 gram per tonne gold, 7.7 grams per tonne silver, 0.03 per cent copper (Giroux, G.H and Stacey, J.R., 2016).
See Spectrum - 104G 036 for further historical and geological information
