论文部分内容阅读
在对比研究煎茶岭大型镍矿与金川超大型镍矿的矿床地质地球化学特征基础上 ,对两个矿床中的伴生金与镍及超基性岩的成矿关系进行了分析比较 ,两区不同的构造环境控制了超基性岩的不同分布。两矿床中的 Ni、Au均来自超基性岩 ,且 Ni矿床中金均为伴生矿 ,金川伴生金的丰度与镍成正比 ,而煎茶岭 Ni矿中伴生金的丰度与镍成反比 ,其原因可能与各自不同的成矿环境及岩浆活动有关 ,尽管两镍矿中金的成矿机理基本相似。
Based on the comparative geo-geochemical characteristics of the deposits in the Jianchaling large-scale nickel mine and the Jinchuan super-large nickel mine, the metallogenic relationships between the associated gold and nickel and ultrabasic rocks in the two deposits are analyzed and compared. The tectonic setting controls the different distribution of ultramafic rocks. Both Ni and Au in the two deposits are from ultrabasic rocks, and the gold in the Ni deposit is an associated ore. The abundance of associated gold in Jinchuan is proportional to nickel, while the abundance of accompanying gold in Jianchaling Ni ore is inversely proportional to nickel , Which may be related to different ore-forming environments and magmatic activity, though the gold mineralization mechanism in two nickel deposits is basically similar.