明矾石矿床稳定同位素特征在矿床类型划分中的意义  

THE SIGNIFICANCE OF STABLE ISOTOPIC CHARACTERISTICS IN THE CLASSIFICATION OF ALUNITE ORE DEPOSITS

作　　者：何玉良[1,2,3] 张乾[1] 祝朝辉[1,2] 王大鹏[1,2] 

机构地区：[1]中国科学院地球化学研究所矿床地球化学国家重点实验室,贵州贵阳550002 [2]中国科学院研究生院,北京100039 [3]河南省地质调查院,河南郑州450007

出　　处：《矿物学报》2009年第1期95-102,共8页Acta Mineralogica Sinica

基　　金：国家重点基础研究发展计划(批准号:2007CB411408);中国科学院重要方向项目(批准号:KZCX2-YW-111)

摘　　要：明矾石矿床是典型的浅成硫酸盐矿床,对矿床的分类也早有研究。本文以明矾石矿床的成矿物质来源为主要依据,结合矿床地质特征和稳定同位素特征,在参考了前人的分类方案后提出一种新的分类方案。在总结了前人研究的近50矿床的地质特征和硫、氢、氧稳定同位素组成特征后,将明矾石矿床分为3大类:表生型、火山-岩浆气热交代充填型和沉积型,其中又将火山-岩浆气热交代充填型分为气热型、岩浆热液型和脉(充填)型。The alunite ore deposits are typical supergene sulfate deposits, and research on their classification has already started. In this paper, a new classification is put forward after consulting the former classifications. It is mainly according to the sources of ore-forming materials, the geologic characteristics and stable isotopic characteristics of the deposits. We divided them into three types in terms of the research results for about 50 deposits, including their geologic characteristics and stable isotopic dates （S, D, O） ： supergene alunite deposits, volcanic-magmatic steam-heated replacement filling deposits and sedimentary mineral deposit. And the volcanic-magmatic steam-heated replacement filling deposits include steam-heated deposits, magmatic-hydrothermal deposits and vein （filling） deposits.

关 键 词：明矾石矿床 矿床类型 分类方案 稳定同位素 

分 类 号：P578.7[天文地球—矿物学] P597[天文地球—地质学]