投稿时间：2014-06-16
修订日期：2015-09-09
网络发布日期：2015-10-29
中文摘要:新疆东天山地区是中国重要的Cu-Ni-Au-Mo-Fe矿集区,目前,该地区唯一的一个铜镍硫化物-钛铁氧化物复合型矿床产自香山岩体中。通过对香山岩体的岩石地球化学和同位素地球化学研究,表明香山岩体是同源岩浆不同演化阶段的产物;硫化物熔离主要受控于岩浆自身分离结晶作用,同化混染和外来硫的加入对硫化物熔离具有一定促进作用。岩浆高度演化、残余岩浆中Ti、Fe元素富集、岩浆体系高氧逸度、富含流体相和挥发分使钛铁氧化物逐步结晶,并在合适的容矿空间富集成矿。
Abstract:East Tianshan region is an important Cu-Ni-Au-Mo-Fe ore concentration area in China, and Xiangshan complex possesses the only Cu-Ni sulfide and Ti-Fe oxide composite type deposits in Tianshan region. Rock geochemistry and isotope geochemistry of rocks show that Xiangshan complex was formed at different evolutionary stages of comagmatic activity. Sulfide segregation was mainly controlled by fractional crystallization of the magma itself, with the addition of assimilation and foreign sulfur. The highly evolved magma, the enrichment of Ti, Fe in residual magma, the high oxygen fugacity of the magmatic system, and the rich fluid phase and volatiles caused gradual crystallization of ilmenite oxides and enrichment of these oxides to form ore deposits in proper space.
keywords:geochemistry Cu-Ni sulfide Ti-Fe oxide deposit genesis Xiangshan Eastern Tianshan Mountains
文章编号：
中图分类号：P618.41;P618.63;P618.47;P618.31
文献标志码：
基金项目:本文得到中国地质调查局地质大调查项目“新疆东天山-北山地区铜镍矿勘查选区研究(编号:1212011085061)”的资助
引用文本：
姜超,钱壮志,杨素红,王若梅,徐刚.2015.东天山香山铜镍硫化物-钛铁氧化物矿床成因[J].矿床地质,34(5):913~928JIANG Chao,QIAN ZhuangZhi,YANG SuHong,WANG RuoMei,XU Gang.2015.Genesis of Xiangshan Cu-Ni sulfide and Ti-Fe oxide deposit in Eastern Tianshan Mountains[J].Mineral Deposits34(5):913~928
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