中国科技核心期刊
美国化学文摘社(CAS)数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
Copper-molybdenum deposit in the southern Huoluotai AreaⅠare located on the iron,copper,gold,molybdenum and tungsten metallogenic zone(belt) sitting in the central north section of Greater Khingan Mountains.The metallogenic stages are pided into 4 phases in time:stageⅠis magnetite-quartz-potassium feldspar stage,stage Ⅱ is quartz-molybdenite,stageⅢis quartz-polymetallic sulfide,and stage Ⅳ is quartz-fluorite-calcite.Quartz-molybdenite stage and quartz-polymetallic sulfide stage are the main metallogenic stages.The fluid inclusions are mainly composed of CO2bearing 3phase inclusion(C type),submineralbearing inclusion(S type),gas-rich inclusion(V type),and liquidrich inclusions(L type).Oreforming fluids generally belong to high salinity H2O-NaCl-CO2 system.The molybdenite in the deposit mainly develops in the potassium silicification zone,and was formed in the early stage of high temperature and high salinity fluid environment; polymetallic sulfide like chalcopyrite mainly develops in the sericitization zone,and was formed in the medium temperature liquidrich fluid environment.Molybdenite precipitation is mainly related to boiling and temperature reduction,polymetallic sulfide precipitation like chalcopyrite is mainly caused by temperature reduction and atmospheric water mixing.Comprehensive analysis thinks the copper-molybdenum deposit in the southern Huoluotai AreaⅠis a typical porphyry deposit.