中国西部岩浆岩型铜镍矿床的元素组合特征及伴生金的赋存状态研究

THE CHARACTERISTIC OF EIEMENT PARAGENESIS AND MODE OF OCCVRRENCE OF ASSOCIATED GOLD IN Cu-Ni MAGMATIC DEPOSITS IN THE WESTERN CHNIA

我国西部岩浆岩型铜镍矿床伴生金与主金属元素组合,Au—Cu组合具有同步富集特征,而Au—Ni组合为不相关;伴生金与微量元素组合,Au—Pt、Au—Pd、Au—Se、Au—Te呈正相关Au—Co、Au—Os、Au—Ru、Au—Ir、Au—Rh为不相关的组合特征.该类型铜镍矿床伴生金以矿物态赋存为主,分散金较少,主要载体为黄铜矿及其它硫化物.

The characteristics of element paragenensis association in Cu-Ni magmatic deposits in the western China are with synchronous concentration;Au-Pd、Au-Pt、Au-Se、Au-Se、Au-Te in positive corvelation and Au-Ni、Au-Co、 Au-Os、Au-Ir、Au-Ru、Au-Rh without any correlation. Gold mainly exists in mineral state ,little is in dispersion state , the maior gold carrier minerals are chaleopyrite and other sulfides.