摘要
通过系统的地球化学研究认为,浙江绍兴—龙泉隆起带中的含金建造是该区金矿床的主要物质来源;封存于矿床围岩中的建造水及部分大气水和火山热液是矿床成矿流体的主要来源。金在成矿流体中以Au^+-Cr^-、Au^+-Hs^-或Au^+-Co_2的络合物为主要迁移形式。成矿流体中金的沉淀与矿石中金矿物的形成是两个独立的地质过程,分别与矿床的黄铁矿化和多金属硫化物矿化相联系。
This paper systematically deals with the geochemical features of the major gold deposits in the Shaoxing-Longquan uplift zone, Zhejiang Province, including the content and association of oreforming elements and trace elements, stable isotopic characteristics, the existing forms of gold, and the composition of ore fluids. The authors consider that the ore-bearing formations in this zone are a good supply of necessary elements and ore fluids for the gold deposits in this zone. It is also considered that some Au+-Cl- and Au+-HS- or Au+-CO2 coordinated ions are the main migration forms of gold in ore fluids and the metallogenesis of gold involves two stages: formation of pyrite and mineralization of Cu, Pb and Zn. In this paper is also presented a comprehensive geochemical model for the formation of gold deposits in this uplift zone.
出处
《地球化学》
CAS
1987年第1期10-21,共12页
Geochimica
基金
中国科学院科学基金
