摘要
运用大陆动力学观点结合旋涡构造学说,分析了贵州构造发展和成矿动力学背景得出:受晚古生代—中生代地层覆盖、印支—燕山运动及“东亚旋涡”的影响,掩盖了前期构造形迹,形成了以垭都—紫云断裂划分的黔北—黔东—黔南地区和黔西南—黔西地区构造体系与成矿背景。其中新元古代—早古生代洋陆转换沉积了厚约35 km的碳酸盐岩—碎屑岩和相关沉积矿产;南华系—早古生代多期次拉张裂陷和强烈的岩浆活动形成了“内生外成”的成矿系统—壳幔成矿物源在外生环境中的成矿系统,造就了黔北—黔东—黔南地区以锰、磷、铅锌、重晶石、汞等为主的喷流沉积型大型—超大型矿集区。晚古生代—中新生代造山背景,造就了下石炭—中二叠统裂谷盆地中铝土矿矿集区;中新生代的燕山—喜山运动和西部地区下地壳加厚诱发的“加厚旋涌”效应,即西部地区下地壳加厚深切软流圈,引起的岩浆活动、成矿物质上涌与成矿温度的逐步下降,在碳酸盐岩—碎屑岩建造中完成成矿作用,造就了黔西南—黔西地区有色金属、黑色金属、贵金属、稀有稀土分散元素等沉积—改造型矿集中区和中低温成矿域。本研究系统地总结了贵州成矿构造背景,以期对主要矿产实现找矿突破和寻找大型—超大型矿床提供线索。
Based on the theory of continental dynamics and vortexes,this paper analyzed the tectonic development and metallogenic dynamics background in Guizhou province,and concluded that it was influenced by late Paleozoic Mesozoic stratigraphic cover,Indosinian Yanshan movement and“East Asian vortex”,the early structural trace was covered up,and the Yadu-Ziyun fault was divided into“the northern Eastern southern part of Guizhou”and“the Western southern Western part of Guizhou”structural system and metallogenic background.Among them,the Neoproterozoic Early Paleozoic ocean continent conversion deposited about 35 km thick carbonate clastic rocks and related sedimentary minerals;the South China system early Paleozoic multi-stage tensile rifting and intense magmatic activity jointly formed the“theory of the upper mantle origin and exogenous mineralization”metallogenic system,thus creating in the northern Eastern southern part of Guizhou was a large-scale and super large ore concentration area with manganese,phosphorus,lead and zinc,barite,mercury and other major minerals of exhalation sedimentary type.The orogenic background of the late Paleozoic Mesozoic and Cenozoic created the bauxite concentration area in the rift basin of the lower Carboniferous Middle Permian;the Yanshan Himalayan movement of the Mesozoic and Cenozoic and“the crust thickening and large scale upwelling of magmatic minerals in the upper mantle”effect induced by the thickening of the lower crust in the western region,i.e.the thickening of the lower crust in the western region and the deep-seated asthenosphere,which resulted in the magmatic activity,the upwelling of ore-forming materials and the gradual decline of ore-forming temperature,and the construction of the carbonate clastic rocks.The metallogenesis was completed in the process of formation,which resulted in the concentration areas of non-ferrous metals,ferrous metals,precious metals,rare and rare earth dispersed elements and the metallogenic domains of middle and low temperatur
作者
马力克
杨涛
黄波
杨忠贵
朱和书
MA Like;YANG Tao;HUANG Bo;YANG Zhonggui;ZHU Heshu(Archives of Geological Data of Guizhou Province,Guiyang 550002,China;School of Resources and Environmental Engineering,Guizhou Institute of Technology,Guiyang 550003,China;Geophysical and Chemical Exploration Corps of Guizhou Nonferrous Metals and Nuclear Industry Geological Exploration Bureau,Duyun Guizhou 558000,China)
出处
《有色金属（矿山部分）》
2020年第6期65-74,共10页
NONFERROUS METALS(Mining Section）
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资助项目(DD20190368)。
关键词
成矿背景
内生外成
加厚旋涌
贵州
metallogenic background
theory of the upper mantle origin and exogenous mineralization
crust thickening and large scale upwelling of magmatic minerals in the upper mantle
Guizhou province
