火山岩地区金矿的蚀变分带和成矿物理化学条件──成矿热流体与控矿环境相互作用过程的四维记录  

Physico Chemical Conditions of Their Formatior and Altered Zones of Gold Deposits within Volcanic Provinces Four Dimension Records of Interactive Process between Ore Forming Hydrothermal Fluid System and Ore Controlling Environment

作　　者：李兆鼐[1] 

机构地区：[1]中国地质科学院地质研究所

出　　处：《地球学报（中国地质科学院院报）》1997年第2期150-161,共12页Acta Geoscientia Sinica

摘　　要：本文主要讨论火山岩、次火山岩和相应侵入岩地区各类金矿的蚀变分带和形成条件，作者把成矿系统分为成矿热流体体系和控矿环境两个组成部分。热流体体系分成近地表和高侵位的两种类型，控矿系统分为火山中心控矿系统、高侵位岩体控矿系统和有区域性断裂系统复合的上述控矿系统。与近地表岩浆热流体体系有关的浅成热液金矿可分为低硫、高硫和富碲３个类型，与高侵位岩浆热流体体系有关的有斑岩型和浅成侵入体型。全面分析了与两种热流体体系有关的各类金矿产出的的地质环境、蚀变矿物组合的时、空分布，及其形成的地质和物理化学条件。This paper mainly discusses the formation conditions and altered zones of gold deposits in areas of volcanic rocks,subvolcanic rocks and hypabyssal intrusive rocks.The author divides the ore forming system into the ore forming hydrothermal fluid system and the ore controlling environment.The hydrothermal fluid system is further divided into the near surface and high level emplacement hydrothermal fluid systems.The author analyzes in an all sided way the geological environments and temporal spatial distribution of altered mineral assemblages of various gold deposits associated with the two kinds of hydrothermal fluid systems as well as the geological and physico chemical conditions of their formation.

关 键 词：火山岩地区 蚀变分带 物理化学条件 金矿床 

分 类 号：P618.510.5[天文地球—矿床学] P618.510.4[天文地球—地质学]