PRELIMINARY STUDY ON METALLOGENETIC ENVIROMENT OF TYPICAL MASSIVE SULFIDE DEPOSITS IN SOUTHERN MARGIN OF ALTAY MOUNTAINS
LIAO Qi-lin, DAI Ta-gen, LIU Wu-hui, QIU Dong-sheng
In southern margin of Altay Mountains, Xingjiang, there exist a series of massive sulfide deposits which are divided into three basic types named copper-(zinc) deposits, lead-zinc deposits and copper-(gold) deposits. Its representatives of these deposits are respectively Ashele copper-(zinc) massive sulfide deposit, Keketale lead-zinc massive sulfide deposit and Qiaoxiahala copper-(gold) massive sulfide deposit. By analysing and comparing their preliminary minerogenetic characteristics and environment, the authors think these deposits have same metallogenetic tectonic background and similar forming environment, and their enrichment space, ore-control factors and prospecting criteria are different from each other basically. These massive sulfide deposits belong to the same minerogenctic series formed in volcanic-exhalative-sedimentary environment hosted in early-middle Devonian epoch volcanic strata related to epicontinental rift zone in southern margin of Altay Mountains.