豫南地区老湾金银成矿系统矿床地球化学模型探讨  

Research in geochemical model of Laowan Au-Ag metallogenic system in southern Henan

作　　者：孙保平[1] 陈加伟[1] 任强[1] SUN Baoping CHEN Jiawei REN Qiang(The Fourth Geological Exploration Institute of Henan Geological Exploration and Development Bureau, Zhengzhou 450001, Henan , China)

机构地区：[1]河南省地质矿产勘查开发局第四地质勘查院,河南郑州450001

出　　处：《矿产与地质》2017年第3期570-579,共10页Mineral Resources and Geology

摘　　要：老湾金银矿位于北秦岭—中秦岭构造带交接部位,是构造-岩浆-流体耦合成矿实例。Au、As、Sb为高背景地球化学特征,结合岩石、矿石的微量元素、稀土元素特征研究,以及典型矿床地球化学特征研究,建立了老湾金银成矿系统矿床地球化学模型。Laowan Au-Ag deposit is located in the transition site between North and Middle Qinling tectonic belt,yet a case of tectonic-magmatic-fluid coupling metallogeny.Au,As,Sb have higher geochemical background.Based on the research results of rock,microelements of ore body,characteristics of rare earth elements and geochemical features in typical deposits,the mineral and geochemical model of Laowan Au-Ag metallogenic system has been set up.

关 键 词：老湾金银成矿系统 微量元素 稀土元素 地球化学特征 地球化学成矿模型 豫南 

分 类 号：P618.5[天文地球—矿床学] P632[天文地球—地质学]