铜镍硫化物矿床是镁铁-超镁铁质岩浆与硫化物熔体发生液态不混溶的产物，是典型岩浆熔离矿床。铜镍硫化物矿床常受岩浆期后的热液叠加和后期热液-变质作用的改造。目前，对铜镍硫化物矿床岩浆期后热液叠加及成矿元素的再活化机制研究较多，尚无对受区域韧性剪控制的岩浆期后热液的叠加过程和成矿机制的详细研究。位于东天山的黄山东铜镍硫化物矿床经历了区域韧性剪带控制的岩浆期后热液叠加和韧性变形，且韧性剪切贯穿于岩浆结晶和成矿过程。本项目将开民展对黄山东铜镍矿床中具韧性变形特征的矿石糜棱岩和具海绵陨铁结构的铜镍硫化物矿石的对比研究，结合对伴生脉石矿物中流体包裹体的详细分析，阐明岩浆铜镍硫化矿床在岩浆侵位过程中，受区域韧性剪带控制的岩浆期后热液叠加作用所产生铜镍富集过程及和成矿元素活化机制，进一步完善铜镍硫化物矿床成矿理论，并为周边地区同样经历了同岩浆韧性剪切的铜镍硫化物矿床中热液叠加型富矿体的找矿工作提供新的思路。

It is generally accepted that the Ni-Cu sulfide deposits are typical magmatic segregation deposits resulting from immiscibility between mafic - ultramafic magmatic and sulfide melt. Actually, the Ni-Cu sulfide deposits are usually experienced postmagmatic hydrothermal overprinting and the late-hydrothermal metamorphism reworking. Recently, many studies focus on mechanism of postmagmatic hydrothermal overprinting on Ni-Cu sulfide deposits and metallogenic element remobilization in the deposits. However, seldom detailed studies have been conducted to reveal the process of postmagmatic hydrothermal overprinting and related ore-forming mechanism for Ni-Cu sulfide deposits companied by coeval regional ductile shearing..The Huangshandong magmatic Ni-Cu sulfide deposits located in the Huangshan - Jinerquang area of the eastern Tianshan Mountains, Central Asia Orogenic Belt. The Ni-Cu sulfide deposits and ore-bearing mafic - ultramafic pluton had underwent dramatic post-magmatic hydrothermal overprinting, while regional ductile shearing run throughout with the process of magmatic crystallization and Ni-Cu mineralization. This project will conduct detailed studies on fabric, mineralogy and geochemistry on the mainly two type of orebody, that is,ore mylonite related to postmagmatic hydrothermal within the ductile shearing zone and sprongs sideronitic orebody related to magmatic Ni-Cu sulfide mineralizaion. Combined with the studies on the characteristics of fluid inclusions related to different type of mineralization, the project should reveal the enrichment process of nickel and copper under the postmagmatic hydrothermal overprinting with coeval regional ductile shearing, discuss remobilization mechanism of some metallogenic elements. Our research will be hopeful to further improve the metallogenic theory of Ni-Cu sulfide deposits, and be helpful to provide new ideas on hydrothermal bonanza prospecting in mafic - ultramafic pluton which experienced a coeval ductile shearing with magmatic Ni-Cu sulfide mineralzation and magmatic crystallization.