西北地区基性一超基性岩含矿(铬、镍)性闭合相关分析  

The Closed Correlation Analysis of (Chrome,Nickal)Contents in Abasic--ultrabasic Rocks in Northwest China

作　　者：刘凤山[1] 傅学明[1] 

机构地区：[1]兰州大学地质系

出　　处：《兰州大学学报（自然科学版）》1991年第1期99-106,共8页Journal of Lanzhou University(Natural Sciences)

摘　　要：本文应用闭合相关理论,对西北地区基性超基性岩的含矿(铬、镍)性进行了定量分析,分析结果表明形成铜镍矿和形成铬矿的超基性岩浆环境有明显差异,铜、镍和铬的富集程度分别主要受二氧化硫、三氧化二铝支配.By using the closed correlation theory, the authors have made aquantitative and calculative analysis of the contents of chrome, nickalin abasic-ultrabasic rocks in the Northwest of China. The result of theseanalyses show that the ultrabasic magnetic environment which formscopper-nickal deposits obviously differs from that which chrome depositdoes and that the enriched degrees of the contents of copper-nickal andchrome are mainly controlled separately by SO_2、Al_2O_3.

关 键 词：基性岩 超基性岩 含矿性 闭合相关 

分 类 号：P588.12[天文地球—岩石学]