西昆仑空巴克石英闪长岩类地球化学特征及构造环境分析  

Geochemical characteristics of quartz-diorites of Kongbake pluton,West Kunlun and their tectonic setting

作　　者：范飞鹏[1] 崔春龙[2] 杨恒书[3] 

机构地区：[1]南京地质矿产研究所,南京210016 [2]西南科技大学环境与资源学院,四川绵阳621010 [3]四川省地矿局川西北地质大队,四川绵阳621000

出　　处：《资源调查与环境》2010年第4期264-270,共7页Resources Survey & Environment

基　　金：新疆阿克陶县恰尔隆一带1:50000区域地质矿产调查(XJQDZ2006-18)资助

摘　　要：西昆仑空巴克石英闪长岩为原特提斯洋基本闭合,康西瓦韧性剪切带活动的产物。岩体属强过铝质、钙碱性系列偏碱性浅成相花岗岩类,大多属I型花岗岩,少数为S型花岗岩,构造环境为晚加里东期活动陆缘碰撞造山带环境。岩浆源为壳幔混源型。Quartz-diorites of Kongbake pluton, West Kunlun, are the product of activities of the Kangxiwar ductile shear zone when the former Tethys Ocean was basically closed. According to the geochemical characteristics, the Kongbake pluton belongs to the strongly peraluminous and calc-alkaline series hypabyssal granitoids, most of which are I-type granite and minority are S-type granite. It is concluded that the tectonic setting is active continental margin collisional orogenic belt in Irate Caledonian and the magma source belongs to crust-mantle mixing type.

关 键 词：石英闪长岩 地球化学 构造环境分析 西昆仑 

分 类 号：P588.12[天文地球—岩石学]