The Ski (Breccia Zone) occurrence is located on the south side of an ice field, southwest of the Ryan River and northwest of Peterson Creek.
The area is underlain mainly by plutonic rocks of the Jurassic to Tertiary Coast Plutonic Complex.
Locally, hornblende granodiorites and monzonites in the area have been cut by a north west –trending shear zone that hosts disseminated pyrite, chalcopyrite, bornite and molybdenum mineralization. Due to silicification and sericitization of the intrusives before deformation, the shear is now represented as a zone of quartz-sericite schist. Mapping of this zone has determined it to be approximately 1 kilometre wide and greater than 5 kilometres long. Small bodies of microdiorite and basaltic dykes, probably related to the Pliocene to Recent Garibaldi Group, postdate deformation and mineralization. On the eastern side of the shear zone, partially obscured by an ice field but exposed over 7 by 10 metres, hosts molybdenite-chalcopyrite mineralization in quartz veins and veinlets within a granodiorite.
In 1980, samples assayed up to 0.66 per cent copper, 23.3 grams per tonne silver and 6.2 grams per tonne gold (Assessment Report 8220). In 2006, a grab sample (Ryan 15) assayed 1.993 per cent copper, 0.223 per cent molybdenum, 33 grams per tonne silver and 1.23 grams per tonne gold (Assessment Report 27699).
In 2016, a rock sample (SSMB002) of outcrop assayed 2.472 per cent copper, 0.331 gram per tonne gold and 73.9 grams per tonne silver, while another sample (A2018188) of outcrop assayed 0.116 per cent molybdenum and 0.865 per cent copper (Cookenboo¸H. (2019-01-10): Technical Report on the Southern Spectrum Mineral Property).
In 2018, a sample (SS-CP-001) from a high-grade 1-metre wide, quartz-sulphide vein that appears to extend under the glacier assayed 17.65 per cent copper, 131 grams per tonne silver and 0.97 gram per tonne gold, while another sample (SS-CP-002), located 10 metres to the north west of the mineralized vein, assayed 2.35 per cent molybdenum and 9.4 grams per tonne silver (Cookenboo¸H. (2019-01-10): Technical Report on the Southern Spectrum Mineral Property).
Work History
In 1973, Orequest prospected and mapped the area as the Ski claims, Ryan property. During 1979 through 1983, Great Western Petroleum completed a program of geological mapping, geochemical sampling and airborne geophysical surveys on the area as the Spectrum claims. During 2004 through 2007, TTM Resources completed a program of geological mapping, geochemical sampling and airborne geophysical surveys on the area as the Molygold project. During 2016 through 2018, Ridgeline Exploration, on the behalf of Rain Resources Corp., completed a program of rock and soil sampling and an airborne magnetic survey on the area as the Southern Spectrum property.