| 滇中地区因民角砾岩类型、特征及找矿意义 |
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| 引用本文： | 刘军平,宛胜,戴启,田素梅,赵江泰,吴嘉林.滇中地区因民角砾岩类型、特征及找矿意义[J].地质论评,2021,67(6):1619-1628. |
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| 作者姓名： | 刘军平 宛胜 戴启 田素梅 赵江泰 吴嘉林 |
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| 作者单位： | 云南省地质调查院,昆明,650216;中国地质大学地球科学与资源学院,北京,100083;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;江西省地质调查院,南昌,330000;云南省地质工程勘察总公司,昆明,650216;云南省地质调查院,昆明,650216 |
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| 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 |
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| 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。
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| 关 键 词： | 因民角砾岩 冰碛砾岩 复成分砾岩 因民组 滇中地区 |
| 收稿时间： | 2021/6/22 0:00:00 |
| 修稿时间： | 2021/9/16 0:00:00 |
Yinmin Breccia types,characteristics and prospecting significance in Central Yunnan |
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| LIU Junping,WAN Sheng,DAI Qi,TIAN Sumei,ZHAO Jiangtai,WU Jialin.Yinmin Breccia types,characteristics and prospecting significance in Central Yunnan[J].Geological Review,2021,67(6):1619-1628. |
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| Authors: | LIU Junping WAN Sheng DAI Qi TIAN Sumei ZHAO Jiangtai WU Jialin |
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| 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. |
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| Keywords: | Yinmin breccia glacial conglomerate Dongchuan Group Kunyang Group Central Yunnan |
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