integration of geological and geophysical studies in order to mineral exploration at the zaveh mineralization area, ne iran

The copper deposit of zaveh lies in the se of the city of torbat-e-heydarieh and in middle of the khaf-kashmar-bardaskanmagmatic belt (kkbmb) in the khorasan-e-razavi province. the lithology of the area consist of jurassic and cretaceoussedimentary rocks and eocene volcanic units. ore-formation is controlled by fault activity, representing vein-veinlet style e-wtrending, formed within a conglomerate rich in quartz. primary minerals are chalcopyrite, pyrite and arsenopyrite and secondaryminerals contain malachite, azurite chalcocite, bornite, covellite, cu sulphates, wad (mn hydroxide), haematite, goethite, jarosite,limonite and (to a lesser extent) chrysocolla. the predominant alteration is silification which is associated with vein ore-formation.the volcanic units host propylitic, sericite, carbonate and silicification alterations. the ore-formation itself represents anomalies ofcu (2.1 % max), as (>1%), sb (~105 gr/t), pb (4371 gr/t) and zn (1.1% max). induced polarization and electrical resistivity(ip/rs) surveys unveil that the most chargeability anomaly corresponds to center of ore-forming vein and fault zone.the chargeability anomaly extends and amplifies with depth. the most amount of specific electrical resistance has been observed inthe quartz-rich conglomerate. interpretation of ip/rs data reveals that the chargeable source is extending in deeper beds (presumablysulphid ore-formation) which needs to be verified by boring operation. geophysical surveys are significantly commensurate withfield observations, ore-forming and geochemical data. utilization geophysical methods in different style of ore-deposits andinterpretation of obtained information by means of geological, ore-forming and geochemistry data is considered to be a big steptowards subterranean exploration and deposits modeling.