哀牢山构造带金矿床类型及成矿规律

来源期刊：黄金2011年第4期

论文作者：王治华 阎家盼 郭晓东 葛良胜 王梁 喻万强 徐涛

文章页码：7 - 13

关键词：金矿床类型； 成矿规律； 找矿标志； 牢山构造带； 西南三江

Key words：type of gold deposit； metallogenic regularity； prospecting indicator； Ailaoshan structural belt； three-river region in southwestern China

摘    要：哀牢山构造带是西南三江地区最重要的金多金属成矿带之一,也是世界上著名的构造岩浆带之一。哀牢山构造带由于受印度—欧亚大陆碰撞以及喜马拉雅造山带地质构造演化影响,成矿构造复杂,成矿条件优越,构造带内金矿床类型复杂。从矿床应用类型的角度,将哀牢山构造带的金矿床划分7种金矿床类型。哀牢山构造带金矿成矿作用具有以下突出特点:成矿地质背景统一性,成矿(矿化)类型多样性,成矿时代多期性,成矿物质多源性,矿床空间分布的集中性,成矿过程的复杂性。并总结了哀牢山构造带内金矿床的找矿标志。

Abstract: Ailaoshan structural belt is not only one of the most important polymetallic metallogenic belts in three-river region in southwestern China,but also one of the most famous tectonomagmatic belts in the world.Influenced by the continental collision between India and Eurasia and the geologic-tectonic evolution of Himalaya orogenic belt,Ailaoshan structural belt has the complicated metallotectonics,predominant ore-forming conditions and complex types of gold deposits.The gold deposits of Ailaoshan structural belt are divided into 7 different types in terms of applied deposit types by this paper.The metallogenesis of the gold deposits in Ailaoshan structural belt are characterized by the following aspects: the unity of metallogenic geological settings,the diversity of metallogenetic(mineralized) types,the multi-stages of metallogenic epochs,the multi-sources of ore-forming materials,the concentration of deposit space distribution and the complicacy of ore-forming processes.In the end,the prospecting indicators of gold deposits in Ailaoshan structural belt are summarized.