论新疆兴地基性超基性杂岩分带性  

ON THE ZONATION OF BASIC-ULTRABASIC COMPLEX IN XINGDI, XINJIANG

作　　者：洛长义[1] 杨合群 朱宝清[1] 罗玉鹏 张开春 

机构地区：[1]中国地质科学院西安地质矿产研究所,西安710054

出　　处：《西北地质科学》1998年第1期52-58,共7页Northwest Geoscience

基　　金：国家305项目!85-902-06-11

摘　　要：笔者将兴地基性超基性杂岩划分为南北两个岩带．南岩带（称为兴地河基性超基性岩带）形成于中元古代，系幔深橄榄拉斑玄武质岩浆活动的产物，具铜镍硫化物成矿专属性，北岩带（称为且干布拉克-团结村偏碱性超基性岩带）形成于晚元古代，系幔源碱性橄榄玄武岩浆、碳酸岩浆及类金伯利岩浆活动的产物，具蛭石、磷灰石、透辉石成矿专属性。Xingdi basic-ultrabasic complex bodies are divided into two rock belts.The south belt is attributable to products of the mantle-derived olivine tholeiitic magmation of Middle Proterozoic Subera, and has the metallogenetic specialization of copper-nickel sulfide.The north belt is attributable to products of the mantle-derived alkali olivine basalt, carbonatite and kimberlite-like magmation of Upper Proterozoic Subera, and has the metallogenetic specialization of vermiculite-apatite-diopside.

关 键 词：基性岩 超基性岩 杂岩 分带性 

分 类 号：P588.124[天文地球—岩石学] P588.125[天文地球—地质学]