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滇中地区因民角砾岩类型、特征及找矿意义
投稿时间:2021-06-22    点此下载全文
引用本文:刘军平,宛胜,戴启,田素梅,赵江泰,吴嘉林.2021.滇中地区因民角砾岩类型、特征及找矿意义[J].地质论评,67(5):67060003,[DOI]:.
LIU Junping,WAN Sheng,DAI Qi,TIAN Sumei,ZHAO Jiangtai,WU Jialin.2021.Yinmin Breccia types,characteristics and prospecting significance in Central Yunnan[J].Geological Review,67(5):67060003.
DOI:
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作者单位E-mail
刘军平 1)云南省地质调查院昆明6502162)中国地质大学地球科学与资源学院北京1000833)自然资源部三江成矿作用及资源勘查利用重点实验室昆明650051 271090834@qq.com。 
宛胜 4)江西省地质调查院南昌330000  
戴启 5)云南省地质工程勘察总公司昆明650216  
田素梅 1)云南省地质调查院昆明6502162)中国地质大学地球科学与资源学院北京1000833)自然资源部三江成矿作用及资源勘查利用重点实验室昆明650051  
赵江泰 1)云南省地质调查院昆明650216  
吴嘉林 1)云南省地质调查院昆明650216  
基金项目:本文为云南省国土资源厅基金项目“云南省1:5 万撒马基幅、因民幅、贵城幅、舒姑幅区域地质调查(编号:D201905)”、中国地质调查局项目“云南省系列地质图件数据处理与洋板块地质研究”(编号:DD20190370)的成果
中文摘要:滇中地区“因民角砾岩”的成因及归属问题目前暂无定论。笔者通过对东川-易门地区前人所划的因民组“因民角砾岩”进行1:5万野外地质调查工作,对其进行了初步的分类。根据其成因及时代划分为复成分砾岩、冰碛砾岩、滑塌角砾岩、引爆角砾岩和构造角砾岩。对“因民角砾岩”成因及时代的研究,特别是“冰碛砾岩、复成分砾岩”的提出,对于解决滇中早前寒武纪地层层序、时代归属、构造格架、大地构造位置及大区域地层对比,探讨滇中元古宙地史演化、古环境研究以及指导找矿都具有重要的指示意义。
中文关键词:因民角砾岩  冰碛砾岩  复成分砾岩  因民组  滇中地区
 
Yinmin Breccia types,characteristics and prospecting significance in Central Yunnan
NameInstitution
LIU Junping1)Yunnan Institute of Geological Survey,Kunming,650216;2)School of Earth Science and Resources,China University of Geosciences,Beijing 100083;3)Key Laboratory of Sanjiang Metallogeny and Resources Exploration and Utilization,MNR,Kunming,650051
WAN Sheng4)Geological Survey of Jiangxi Province,Nanchang,330000
DAI Qi5)Yunnan Provincial Geological Engineering Survey Corporation, Kunming,650216
TIAN Sumei1)Yunnan Institute of Geological Survey,Kunming,650216
ZHAO Jiangtai1)Yunnan Institute of Geological Survey,Kunming,650216
WU Jialin1)Yunnan Institute of Geological Survey,Kunming,650216
Abstract:Objectives:The author conducted a 1:50,000 field geological survey of the Yinmin breccia, which was drawn by the predecessors in the Dongchuan-Yimen area,and made a preliminary classification.Results:According to its genesis and age,it is divided into compound conglomerate,glacial conglomerate, slump breccia,detonation breccia and structural breccia.Conclusions:The research on the genesis and age of "Yinmin breccia",especially the proposal of "icicle conglomerate and compound conglomerate",is useful for solving the early and pre-Cambrian stratigraphic sequence,age,structural framework,The location of the geotectonic structure and the comparison of the stratigraphy in a large area,the exploration of the evolution of the Proterozoic geological history in Central Yunnan,the study of the paleoenvironment,and the guidance of ore prospecting are all important indicators.
keywords:Yinmin breccia  glacial conglomerate  Dongchuan Group  Kunyang Group  Central Yunnan
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