The JO target is in an area underlain by wackes and siltstones of the Upper Triassic Stuhini Group.
The showing was discovered in 2015 and is located 600 metres southeast from the south end of the Spectrum Central Zone (104G 036) along the north side of a tributary creek to the main drainage. The showing is underlain by siliceous siltstone that is exposed for approximately 13 metres in length and 1.2 to 1.5 metres in width. This area is weathered with a strong orange-red gossan that is not typical of any outcropping in “the canyon area”.
The JO mineralization consists of sheeted centimetre scale quartz-arsenopyrite-chalcopyrite-galena-sphalerite veins trending 260 to 270 degrees dipping 50 degrees to the north. Veins vary in thickness from a maximum of six centimetres to a minimum of 0.2 centimetre with the average being 2 to 3 centimetres in thickness and a vein density every 15 to 20 centimetres over widths of up to 1.5 metres. 2015 and 2016 chip samples of veining and host sediments resulted in the following grades from samples 18243, 18244 and 5792587: 0.6 metre of 12.4 grams per tonne gold and 15.7 grams per tonne silver, 0.248 per cent copper, 0.14 per cent zinc; 0.7 metre of 23.6 grams per tonne gold and 39.8 grams per tonne silver, 0.514 per cent copper; and 1.5 metres of 7.54 grams per tonne gold and 4.8 grams per tonne silver (Assessment Report 36675). Sample 5792587 was taken from medium grey, fine-grained; moderately to strongly fractured siltstone. The fractures run east-west and dip 50 degrees north. A very fine pyrite coating occurs on the fractures and 2 to 3 per cent disseminated pyrite is reported. Two quartz-arsenopyrite-pyrite-chalcopyrite veinlets, 0.3 and 2 centimetres in width, occur. The 2016 sampling extended the centimetre scale quartz-arsenopyrite veining a further 3.5 metres into the footwall than previous sampling.
The unaltered sediment unit immediately above the showing area is more intensely fractured but not gossanous and is barren of quartz veining or sulphide mineralization. The gossanous zone that hosts the quartz veins is covered by overburden on both the southwest and northeast portions of the exposure and is bounded by the creek a few metres downslope to the southeast. LiDAR lineament analysis identified a linear structure running east-northeast along this creek which may be a fault related to mineralization.
In 2016, additional soil sampling occurred northeast of the JO showing to fill in a gap in previous sampling coverage. The soil sampling program was successful in extending the soil anomaly associated with the JO showing to the northeast. The soil anomaly is now a 600 metres long northeast-trending gold-arsenic plus silver, copper and lead anomaly, occurring in two parallel linear zones, that is open to the northeast. The area is heavily vegetated with little outcrop. The only mineralization in this area discovered to date is float of five millimetres thick quartz-arsenopyrite veining adjacent to a soil sample pit that yielded 0.19 parts per billion gold. This sample of veining assayed 18.8 grams per tonne gold, 28.8 grams per tonne silver and 0.787 per cent copper and is similar in style and tenor to the sheeted veining at the JO showing (Assessment Report 36675).
Refer to Spectrum (104G 036) for details of a common property work history and geology.
