中南大学学报（自然科学版）2017，Vol.48Issue(9)：2402-2413,12.DOI:10.11817/j.issn.1672-7207.2017.09.020
湘西花垣铅锌矿田成矿模式
Metallogenic model of Huayuan Pb-Zn ore field in the western Hunan Province, South China
摘要
Abstract
Huayuan Pb-Zn ore field is located in the transition zone between the southeastern margin of the YangtzeBlock and the Xuefeng(Jiangnan) orogenic belt of South China. Ore bodies are mainly layered and secondly vein-like inshape, and hosted within both the algal limestone of the third submemeber and the sand limestone of the fourthsubmemeber of the Lower Cambrian Qingxudong Formation. Considering that faults and lithofacies are the mostimportant ore-controlling factors for formation of the Pb-Zn orebodies, the characteristics of ore geology, isotopegeochemistry, faults, lithofacies and ore source bed were analyzed. The metallogenic model of Huayuan Pb-Zn ore fieldwas built. The results show that the sulfur is derived from the in-situ thermochemical reduction of sulfates from the older basement to the Cambrian sediments; the ore metals are likely derived from the older basement to the ShipaiFormation,and the ore-forming fluids are mixture of metamorphic, formation and meteoric waters. TheHuayuan—Zhangjiajie fault belt largely controls the distribution of sedimentary facies and mineralization, and thesecondary faults with NE dip direction act as channels for migration of the ore-forming fluids. Moreover, thedistribution of deposits and orebodies are controlled by shallow and biological reef facies near platform margins.Huayuan Pb-Zn ore field is MVT-type Pb-Zn deposit, which is formed in a foreland basin due to the Caledonian orogeny.关键词
同位素/构造/岩相/矿源层/成矿模式/花垣铅锌矿田Key words
isotope/structure/lithofacies/ore source bed/metallogenic model/Huayuan Pb-Zn ore field分类
天文与地球科学引用本文复制引用
隗含涛,邵拥军,熊伊曲,刘伟,孔华,李群,隋志恒..湘西花垣铅锌矿田成矿模式[J].中南大学学报（自然科学版）,2017,48(9):2402-2413,12.基金项目
中国地质调查局整装勘查项目(12120114052201) （12120114052201）
中南大学"创新驱动计划"项目(2015CX008) （2015CX008）
中南大学博士生自主探索创新项目(2015zzts069) (Project(12120114052201) supported by the Monoblock Exploration Program of the China Geological Survey （2015zzts069）
Project(2015CX008) supported by the Innovation-driven Plan of Central South University （2015CX008）
Project(2015zzts069) supported by the Independent Innovation Program for Doctoral Candidates of Central South University) （2015zzts069）
