文献类型：期刊文献

中文题名：黔西地区与峨眉山玄武岩有关的铜矿背景分析

英文题名：Background Analysis of Copper Deposits Related to Mount Emei Basalt in Western Guizhou

作者：胡加斌 黄波 杨涛 曹其琛 孙芳芳 徐蒙

第一作者：胡加斌

机构：[1]中国冶金地质总局山东正元地质勘查院,山东济南250101;[2]贵州理工学院资源与环境工程学院,贵州贵阳550003;[3]贵州有色金属和核工业地质勘查局物化探总队,贵州都匀558000;[4]山东正元地质资源勘查有限责任公司,山东济南250101;[5]山东省第一地质矿产勘查院,山东济南250022

第一机构：中国冶金地质总局山东正元地质勘查院,山东济南250101

年份：2020

卷号：35

期号：1

起止页码：85-92

中文期刊名：徐州工程学院学报：自然科学版

基金：贵州省科技计划项目(黔科合[2016]支撑2809);中国地质调查局全国海陆成矿图件编制更新项目(DD20160344)。

语种：中文

中文关键词：峨眉山玄武岩;热液型铜矿;加厚旋涌;黔西地区

外文关键词：Mount Emei basalt;hydrothermal copper deposit;thickening swirl;western Guizhou

摘要：新元古代-晚古生代是贵州省重要的沉积时期,海西晚期-印支运动中多期次大规模玄武岩喷发和辉绿岩侵入,拉开了内生成矿序幕,形成了下伏茅口组和上覆乐平统沉积建造的中低温背景,随着燕山运动产生的东薄西厚和北西向以紫云-垭都深断裂为主的构造体系,诱发了“加厚旋涌”效应,即黔西较东部地区地壳明显加厚,深切了软流圈改变了软流圈运动方式,伴随强烈岩浆活动和大规模成矿物质上涌,在有利成矿环境中与碎屑岩-碳酸盐岩建造中完成各种成矿作用;同时其中低温成矿背景,限制了Cu元素的活化运移,不利于大规模与玄武岩有关铜矿的形成,而利于对温度要求不高且易于活化运移的成矿元素,成为贵州重要中低温内生矿产集中区.
Neoproterozoic-late Paleozoic is an important sedimentary period in Guizhou Province.In the late Hercynian-Indochina period,massive basalt eruptions and diabase intrusions opened the prelude of endogenous mineralization,and the meso-low temperature background of sedimentary formation of the lower Fumaokou Formation and the upper Leping Formation got formed.With the tectonic system of the Yanshan Movement,which was thin in the east and thick in the west,dominated by Ziyun-Yadu deep fault in the NW direction,the"thickening swirl"effect was induced,i.e.the crust in western Guizhou is significantly thicker than in the eastern region,which deeply changed the asthenosphere movement mode.With the strong magmatic activity and large scale metallogenic material upwelling,various metallogenic processes were completed in the favorable metallogenic environment and in the construction of clastic rock and carbonate rock.At the same time,the low-temperature ore-forming background restricts the activation and migration of Cu elements,which is not conducive to the formation of large-scale basalt-related copper deposits,but is favorable for ore-forming elements with low temperature requirements and easy activation and migration,thus becoming an important medium-low temperature endogenous mineral concentration area in Guizhou.