福建省崇安-石城构造带的地球化学特征及其与成矿的关系

在简述福建省崇安－石城构造带地质特征的基础上，对比了不同性质的构造岩的地球化学特征，并对其与金、银等多金属成矿的关系进行了初步的探讨。研究表明崇安－石城构造带经历了加里东、海西、印支、燕山等多阶段活动与成矿。在燕山期的不同阶段构造属性不同，对应不同的成矿特征，在压扭性的构造岩中以金矿化为主，而在拉张性的构造岩中则以银矿化为主。

TECTONO-GEOCHEMISTRY AND METALLOGENSIS OF POLYMETAL ORE DEPOSITS OF CHONG'AN-SHICHENG STRUCTURAL BELT,FUJIAN PROVINCE

The Chong'an-Shicheng structural belt is one of the important mineralization belts in northwestern Fujian Province.It is abundant in polymetal ore deposits including gold,silver,and stannum.Formed in the Caledonian movement,the belt was active in the Hercynian movement,the Indo China movement,the Yanshan movement,and so on.The characteristics of metallogensis of polymetal ore deposits in the belt vary in different movement stages,which corresponds with the change of compressional or tensional state of the structural belt in different movements.Based on a brief introduction of geological characteristics of the Chong'an-Shicheng structural belt,this paper focuses on the tectono geochemistry of the belt.Comparison is conducted between the tectono geochemistry of tectonites from compressional and tensional faults.It also discusses how the difference of tectono geochemistry of tectonites in different structural states is related to the difference of metallogensis.The reseach showes that gold metallization is main in compressional tectonites and silver metallization is main in tensional tectonites in Chong'an-Shicheng structural belt.