甘肃龙首山超基性岩带含矿岩体主造岩矿物化学特征研究

对甘肃龙首山超基性岩带含矿岩体的主造岩矿物———橄榄石、辉石,进行了矿物化学特征分析 ;比较了金川岩体与外围岩体在矿物化学特征方面的异同。通过研究 ,龙首山超基性岩带的岩体中 ,五号异常岩体与金川岩体极为相似 ,有望在深部寻找到金川式铜镍硫化物矿床

STUDY ON MINERAL-CHEMISTRY FEATURES OF THE MAIN ROCK-FORMING MINERALS OF MINERALIZED ROCK BODIES IN THE LONGSHOUSHAN ULTRABASIC ROCK BELT

This paper started from olivine and pyroxene,the main rock-forming minerals of mineralized rock bodies in the Longshoushan ultrabasic rock belt, to their mineral-chemistry features and emphasized on the difference and similarity between the Jingchuang rock body and the surrounding rock bodies.Through study, we found that the No5 anomaly rock body and the Jingchuang rock body were similar in the mineral-chemistry features of olivine and pyroxene.So,we regarded that the No5 anomaly rock body was very similar to the Jingchuang rock body.It is possible that the copper-nickel sulfide deposit of Jingchuang type could be found under the lower part of the No5 anomaly rock body.