Altay
Maleevsky
Maleevsky is a typical syngenetic VMS deposit hosting ores of sulphide-polymetallic formation with associated gold and silver.
The Maleevskoye deposit comprises seven stratabound zones of lead-zinc-copper-gold-silver mineralisation: Rodnikovaya, Maleevskaya, Octyabrskaya, Holodnaya, Lugovaya, Bobrovskaya and Platovskaya. The stratabound bodies generally strike 300-310°, parallel to axial traces of the domes, dip at low to moderate angles SW and plunge NW.
Mineralisation is divided into polymetallic (lead-zinc with >0.6% Pb) and copper-zinc (<0.6% Pb and high Cu), the division defined by the lead content. In general, polymetallic mineralisation, accompanied by barite, occurs on the flanks and on the hangingwall side of the lenses, whilst copper-zinc mineralisation tends to prevail in the central parts of the lenses and on the footwall side. The largest and richest mineralised zones (Maleevskaya, Rodnikovaya, Holodnaya and Lugovaya) occur within a 150-200m thick Maleevskoye Member of the Maslovskaya Formation. They consist of massive sulphide stratabound bodies of various forms (saddles, lenses, tabular bodies) which pass downwards into veinletdisseminated mineralisation.
Maleevskaya Zone
A series of folded stratabound lenses of complicated geometry has subsequently been traced to a depth of 700-750m. The overall strike of the zone is 315° with a 32-35° northwestern plunge. The combined strike length is 2.3km. The ........