摘要
Abstract
In this study,the interaction between tectonohydrothermal activity and alteration mineralization in the process of gold mineralization is investigated by taking the Jiangnan Paleocontinental Orogenic Belt as an example.The Jiangnan Paleocontinental Orogenic Belt is located in southeastern China,where gold mines are mainly distributed near fracture zones and tectonic lines,and the type of deposits is mainly of hydrothermal type.The study shows that regional tectonic activities and the rise and migration of hydrothermal fluids play a central role in the enrichment process of gold ores.Alteration enhances the permeability and porosity of rocks by changing their physicochemical properties,providing favorable channels for the migration and precipitation of gold elements.Different types of alteration have different degrees of influence on gold mineralization.Calcification,dolomitization and other alterations contribute to gold enrichment,while acidic alteration may lead to the dissolution and migration of gold.The results of the study help to deeply understand the mechanism of gold mineralization and provide theoretical basis for gold exploration and development.关键词
江南古陆成矿带/金矿构造/热液活动/成矿作用Key words
Jiangnan paleocontinental orogenic belt/gold tectonics/hydrothermal activity/metallogenesis分类
地质学
