Prospecting started in 2014 by exploring the zones of quartz-sericite-pyrite alteration and “so-called” secondary quartzite, discovered in 2013. During 2013, a small porphyry intrusion was mapped (quartz diorites to quartz syenite-porphyries), which had active contacts with zones of secondary quartzites developed along the periphery of the intrusions. Among the host rocks, developed 300-400 meters from small intrusions of a porphyry type, zones of eruptive breccias are noted both in the zones of development of skarnated hornfels and Ordovician volcanics and among secondary quartzites.
Schlich Sample from Mazar-Ashu Valley
Among the volcanic rocks, represented mainly by agglomerate tuffs and tuff-lavas, manifestations of copper mineralization in the form of chalcopyrite veinlets, or nodules in the host rock (up to 15 x 30 cm). The samples taken from sulfides with copper minerals returned the gold grade up to 0.455 g/t, silver – up to 97 g/t, copper – up to 0.70%; with accompanying molybdenum and zinc.
Geochemical Sampling. Mazar-Ashu North
Also, mineralized zones were mapped to the south of the main lake of the Mazar-Ashu valley and along with the geochemical profile #09 among secondary quartzites, gabbroids, and Silurian granitoids. These zones are characterized by the development of quartz veins and veinlets of several generations with the inclusion of diffuse mineralization in the form of pyrite and chalcopyrite with gold grades up to 0.3 g/t, silver – up to 4.7 g/t, and copper – over 1%.
Geochemical Interpretation of Sampling
In the immediate vicinity of this area and below it, a talus of eruptive breccia, cemented entirely by medium-low-temperature quartz of several generations, were revealed.