中国新疆矿床成矿系列类型

METALLOGENIC SERIES TYPES OF ORE DEPOSITS IN XINJIANG

研究认为在不同时代、不同地质构造单元中重复出现的矿床成矿系列，可称为矿床成矿系列类型。新疆主要矿床成矿系列类型带有鲜明的古生代造山带成矿作用特点，它们联系于新疆各造山带古生代地壳发展的拉张型过渡壳－洋壳－汇聚型过渡壳－古生代新陆壳的各特定阶段，与各阶段地质构造作用密不可分。矿床成矿系列类型本身也随着地壳发展。

Metallogenic series of ore deposits that could occur repeatedly in different epochs and different tectonic units are named metallogenic series types of ore deposits. Related to various specific developmental stages of Paleozoic crust in different orogenic belts, the metallogenic series types of main ore deposits in Xinjiang exhibit distinct metallogenic characteristics of Paleozoic orogenic belt. In Xinjiang, there exist lots of ore deposit metallogenic series types at each developmental stage of the earth crust as follows: The basement continental crust stage: the metallogenic series type of sedimentary metamorphic iron copper apatite deposits in volcanic clastic carbonate formation; the metallogenic series type of sedimentary metamorphic iron deposits in volcanic ferrosilicine formation; the metallogenic series type of hydrothermal reformed lead zinc silver deposits in magnesian carbonate formation; the metallogenic series type of magmatic copper nickel deposits related to mafic ultramafic complexes. Metallogenic series types in folds of sedimentary co ver: the metallogenic series type of apatite and vermiculite deposits in alkale ultramafite formation; the metallogenic series type of iron, titanium, vanadium, REE and diamond deposits related to deep seated source alkali intrusive complexes; the metallogenic series types of sedimentary phosphorus, vanadium, uranium, iron and manganese deposits related to siliceous carbonate formation, which might be divided into phosphorus, vanadium and uranium subtype and neritic shelf facies iron and manganese subtype; the metallogenic series type of sedimentary oil, gas, coal, bauxite and fireclay deposits, which might be divided into marine gypsum rock salt subtype, continental gypsum rock salt subtype, and modern salt lake gypsum trona rock salt subtype. The tensile transitional crust stage: the metallogenic series type of iron, lead, zinc, copper and gold deposits related to volcanic sedimentary formation along the magmatic type passive continental margin; the metallogenic series type of sedimentary and stratabound gypsum lead and zinc deposits along nonmagmatic type passive continental margin. The oceanic crust stage: the metallogenic series type of chromium, asbestos, nephrite and talc deposits related to ophiolite formation; the metallogenic series type of cuprious pyrite deposits related to spilite keratophyre formation. The convergent transitional crust stage: the metallogenic series type of porphyry skarn hydrothermal tungsten, tin, molybdenum, copper, lead and zinc deposits related to island arc and continental arc calc alkaline granite formation; the metallogenic series type of copper, molybdenum, lead and zinc deposits related to volcanic formation in island arc and continental arc (which might be divided into the metallogenic series subtype of copper lead and zinc gold deposits related to basic intermediate acid volcanic formation and intermediate acid volcanic formation, the metallogenic series subtype of copper molybdenum deposits related to intermediate volcanic subvolcanic formation, with the former belonging to the kuroko deposits); the metallogenic series type of stratabound gold and iron deposits related to terrigenous clastic carbonate formation. The new continental crust stage: the metallogenic series type of tungsten and tin deposits related to K feldspar granite alkali granite; the metallogenic series type of granite pegmatitic mica rare metal gemstone deposits related to parautochthonous metasomatic K feldspar granite; the metallogenic series type of hydrothermal gold deposits related to clastic pyroclastic formation; the metallogenic series type of stratabound copper deposits in molasse formation.