锡霍特-阿林成矿带金属矿床成矿作用的演化

EVOLVEMENT OF THE METALLIC MINERALIZION IN THE SIKHOTE-ALIN METALLOGENIC PROVINCE

锡霍特-阿林构造带由兴凯地块、老爷岭-格罗杰科岛弧和东锡霍特-阿林造山带3个构造单元组成.其金属矿床成矿作用可分为3期:里菲纪末期至志留纪末,在兴凯区形成了喷流-沉积为主的铁(锰)矿、铅锌矿及岩浆热液型锡矿;二叠纪中期,在老爷岭-格罗杰科岛弧地区形成了浅成低温热液型金(银)矿和变质热液型金矿;侏罗纪至古近纪末,在东锡霍特-阿林构造带中形成了夕卡岩型钨床、浅成低温热液型金(银)矿、夕卡岩型及脉状硼矿和铅锌矿、脉状金矿等矿床.

There Sikhote-Alin tectonic belt is composed of three tectonic units, i.e. Khanka massif, Laoyeling-Grodekovo island arc and East Sichote-Alin orogenic belt. The evolvement of metallic mineralization in the region can be divided into three periods. From the end of Riphean to the end of Silurian, iron （manganese） deposits and lead-zinc deposits were formed by exhalative-sedimentary mineralization in Khanka area, with also some magmatic hydrothermal tin deposits. During Middle Permian, epithermal gold （sliver） deposits, as well as metamorphic-hydrothermal gold deposits, were formed in Laoyeling-Grodekovo island are region. Through Jurassic to the end of Paleogene, skarn type tungsten deposits, epithermal gold （sliver） deposits, skarn and vein types of boron and lead-zinc deposits, and vein gold deposits were formed in the East Sikhote-Alin tectonic belt.