贵州万山超大型汞矿成矿模式  

A Genetic Model for the Wanshan Super-large Mercury Deposit,Guizhou

作　　者：花永丰[1] 刘幼平[1] 

机构地区：[1]中国有色金属工业总公司贵州地质勘查局

出　　处：《贵州地质》1996年第2期161-165,共5页Guizhou Geology

摘　　要：本文以万山超大型汞矿为研究对象，从汞的沉积作用开始，至热液成矿的完成，历史地、空间地研究了汞矿起源演化形成的全过程，最后提出了科学的成因观点，并建立了成矿模式。In a strict sense, the mineralization of the super large mercury deposit in Wanshan area, eastern Guizhou, occured at the begining of the Cambrian. It is this period when,as a site for the initial accumulation of the ore-forming elements,the Shanmu deperssion with NNE-strike which was controlled by palaeotectonic and was advantageous to deposition was developed in such a environment of the continental slope landward closed to the platform.This case existed prior to the Cambrian and was subsequently evolved under the influence of the Precambrian tectonic. The Yanshan Movement caused the activity and circulationof a meteoric-dominated hydrothermal system within the Cambrian stata. As a result of the constant convection,the previous source bed relatively rich in mercury may have strongly suffered form the hydrothermal fluid leaching to from a lowtemperated, high-salinity, neutral to alkali solution rich in ore-forming materials. The super large Wanshan mercury deposit formed eventually in the favorable lithologic-structural assemblage by the physiochemical change of the mineralized fluid plus reducing in temperature.

关 键 词：成矿模式 贵州 汞矿床 

分 类 号：P618.680.5[天文地球—矿床学]