新疆喀拉通克铜镍硫化物矿床成岩成矿作用综述  

A summary of magma evolution and eulfide mineralization of the Kalatongke Cu-Ni sulfide deposit,Xinjiang,China

作　　者：李钢柱[1,2] 雷玮琰[1] 张忠伟[1] 

机构地区：[1]地质过程与矿产资源国家重点实验室,中国地质大学(北京)地球科学与资源学院,北京100083 [2]武警黄金第二支队,内蒙古呼和浩特010010

出　　处：《中国矿业》2011年第10期52-56,共5页China Mining Magazine

基　　金：中国地质大学(北京)特聘教授科研启动基金(51900902006)

摘　　要：新疆喀拉通克铜镍矿床是产于中亚造山带镁铁质侵入体中的大型岩浆铜镍硫化物矿床。本文从含矿岩体及矿床的大地构造背景、地球化学特征、岩浆作用和成矿作用等方面,系统地总结了喀拉通克铜镍硫化物矿床近年来的研究进展和成果。研究显示,喀拉通克岩体与矿床的成岩成矿时间为早二叠世,岩体的形成可能与板片窗岩浆作用有关。导致硫化物饱和并从岩浆中熔离的主要原因,为橄榄石的分离结晶和富Si地壳的混染,硫化物的富集主要受流动分异作用和重力分异作用控制。The Kalatongke deposit in the Central Asian Orogenic Belt is a large Cu-Ni sulfide deposit hosted by several magfic intrusions in northern Xinjiang,China.The latest research results of the Kalatongke Cu-Ni sulfide deposit are systematically summarized according to tectonic setting,geochemical characteristics,magma evolution and sulfide mineralization.It shows that the Kalatongke intrusions and deposits formed in Early Permian,the Kalatongke intrusions can be explained by slab window magmatism,sulfide saturation in the magmas may be related to olivine crystallization and contamination with high Si crustal materials,and sulfide ores are consistent with flow concentration and/or gravitational settling of sulfide liquid.

关 键 词：镍 铜 硫化物矿床 镁铁质岩 喀拉通克 新疆 

分 类 号：P618.45[天文地球—矿床学]