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
- 1)云南省地质调查院，昆明，650216；2)中国地质大学地球科学与资源学院，北京，100083；3)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
- 4)江西省地质调查院，南昌，330000
- 5)云南省地质工程勘察总公司，昆明，650216
- 1)云南省地质调查院，昆明，650216；2)中国地质大学地球科学与资源学院，北京，100083；3)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
- 1)云南省地质调查院，昆明，650216
- 1)云南省地质调查院，昆明，650216
- 1)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
- 4)Geological Survey of Jiangxi Province,Nanchang,330000
- 5)Yunnan Provincial Geological Engineering Survey Corporation, Kunming,650216
- 1)Yunnan Institute of Geological Survey,Kunming,650216
- 1)Yunnan Institute of Geological Survey,Kunming,650216
- 1)Yunnan Institute of Geological Survey,Kunming,650216
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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。
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.
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.
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- 收稿日期:2021-06-22
- 在线发布日期: 2021-09-20
- 出版日期: 2021-09-15
