中国岩浆型铜镍硫化物矿床类型浅谈

Discussion on the classification of magmatic type of copper- nickel sulfide deposits in China

文章对岩浆型铜镍硫化物矿床类型划分进行综述,从找矿预测角度把中国岩浆型铜镍硫化物矿床分为两大类,即小岩体杂岩型和其他类型,前者又可分为4个亚类,即古大陆边缘裂解型小岩体、造山带相关小岩体、与大陆溢流玄武岩相关的小岩体和阿拉斯加型小岩体;后者又可分为3个亚类,即蛇绿岩型、科马提岩型和层状杂岩型,并简略地介绍了各类型矿床的主要特征和新类型划分的重要意义。

In this paper, the classification of the magmatic type of copper- nickel sulfide deposits is reviewed. In the view of the prospecting prediction, the magmatic copper - nickel sulfide deposits in China are divided into two categories, i. e. , minor intru- sion rock type and other magmatic type. The former is further divided into four subtypes, i. e. , ancient continental margin rift type, orogen - related type, continental overfloor basalt - related type and Alaska type minor intrusion type, and the latter is further divided into ophiolite suite type, komatiite type and layered complex rock type. Finally the main characteristics of each type of magnetic type copper - nickel sulfide deposit are brielfly described, and the importance of the new classification of the magmatic copper - nickel sul- fide deposits in China is discussed.