文献类型：期刊文献

中文题名：三江地区大规模成矿动力学模式浅析

英文题名：A Brief Analysis of Geodynamic Model of Large-scale Mineralization in the Sanjiang(Nujiang, Lancangjiang and Jinshajiang) region

作者：刘军 黄波 杨涛 徐伟钧 黎朋 杨顺成

第一作者：刘军

机构：[1]贵州理工学院资源与环境工程学院,贵阳550003;[2]西安西北有色物化探总队有限公司,西安710068;[3]贵州省有色金属和核工业地质勘查局物化探总队,贵州都匀558000;[4]浙江省水文地质工程地质大队,浙江宁波315012

第一机构：贵州理工学院资源与环境工程学院

年份：2019

卷号：39

期号：4

起止页码：543-546

中文期刊名：四川地质学报

外文期刊名：Acta Geologica Sichuan

基金：贵州省科技厅科技支撑计划社发公关领域项目(黔科合[2016]2846);中国地质调查局云南维西—兰坪地区矿产远景调查(资[2008]增01-04-03号);全国海陆成矿图件编制更新(中国地调局项目编码:DD20160344)共同资助

语种：中文

中文关键词：三江成矿带;板块碰撞;“全球旋涡大地构造假说”;“加厚旋涌”成矿动力学模式

外文关键词：Sanjiang metallogenic belt;plate collision;hypothesis of global eddy tectonics;thickening and surging metallogenic dynamic model

摘要：喜山期印度板块与欧亚板块的强烈碰撞,引起"三江"造山带与扬子陆块西缘抬升和地壳加厚并深插上地幔,在东亚旋涡旋转作用下("全球旋涡大地构造假说"之东亚旋涡单元),上地幔软流圈的高能旋转受阻而被动沿构造裂隙上涌,导致强烈的岩浆活动和大规模成矿物质上涌,并在有利条件下完成各种成矿物质的分异-富集和大规模成矿作用;产生了大型-超大型矿床集中区,成为我国最重要成矿区带之一,是三江地区特有的"加厚旋涌"成矿动力学模式。
Strong collision between Indian plate and Eurasian plate in the Himalayan epoch resulted in the uplift of the Sanjiang orogenic belt and the western margin of the Yangtze block and crust thickened and deeply inserting into the mantle. Under the influence of east Asian vortex rotation(East Asian vortex unit of the global vortex geotectonic hypothesis), high energy rotation of the upper mantle asthenosphere was hindered and passively upwelling along tectonic fissures which led to intense magmatic activity and massive upwelling of ore material and differentiation, enrichment and large-scale mineralization of various ore materials were completed under favorable conditions. As a consequence, a large and superlarge deposit concentration area was formed. It is one of the most important metallogenetic belts in China.