东川运动及其对东川矿区褶皱构造的影响

刘卫明; 刘继顺; 尹利君; 杨立功; 刘文恒; 豆松

东川运动及其对东川矿区褶皱构造的影响

刘卫明^{1, 2,},
刘继顺¹,
尹利君¹,
杨立功¹,
刘文恒¹,
豆松^{1, 3}

1.
中南大学地球科学与信息物理学院, 长沙 410083
2.
江西理工大学资源与环境工程学院, 江西赣州 341000
3.
云南省有色地质勘查局, 昆明 650051

基金项目:

云南省省院省校合作项目 2003UDBEA00A026

详细信息

作者简介:
刘卫明(1964-), 男, 博士研究生, 教授, 主要从事矿业信息化和矿山地质教学研究工作。E-mail:wm_liu@sina.com

中图分类号: P542
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- 被引次数: 0
出版历程
- 收稿日期: 2011-10-24
- 刊出日期: 2012-03-28

DONGCHUAN MOVEMENT AND ITS INFLUENCE ON FOLDING STRUCTURES IN DONGCHUAN MINING DISTRICT

1.
School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
2.
Faculty of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
3.
Yunnan Non-ferrous Metal Geological Exploration Bureau, Kunming 650051, China

摘要

摘要: 分析了当前东川运动的各种认识，通过上下地层的特征、构造、变质作用、火山-岩浆活动、形成背景以及汤丹、落雪和拖布卡3个典型剖面的研究，确定该运动是一次大规模的构造运动。东川运动是南北向挤压运动，在东川矿区下（昆阳）亚群形成东西向褶皱构造，被后期小黑箐和晋宁运动叠加改造后，其构造形迹变得模糊和复杂，但经仔细研究分辨出了10个较大的褶皱构造。
- 东川运动 /
- 褶皱构造 /
- 昆阳群 /
- 东川矿区
Abstract: The various understandings about Dongchuan Movement were analyzed. Researches on characteristics of the strata in Kunyang Group, metamorphism, volcano-magma activities, and typical profiles as Tangdan, Luoxue and Tuobuka show that Dongchuan Movement is a large-scale tectonic movement. Dongchuan Movement is SN-trend compressional movement. In Dongchuan mining district, EW-trend fold structures formed in the lower Kunyang subgroup. These EW-trend fold structures were reformed and transformed by later Xiaoheijing Movement and Jinning Movement. The structural features became indistinct and complex. But after a careful study, the 10 larger fold structures were distinguished in Dongchuan mining district.
- Dongchuan Movement /
- folding structure /
- Kunyang Group /
- Dongchuan mining district

HTML全文

图 1 东川矿区地质构造纲要图

1—古元古界（Pt₁）；2—中元古界（Pt₂）；3—新元古界澄江组（Pt₃c）；4—新元古界灯影组（Pt₃dn）；5—边界断层；6—同生断层；7—向斜轴、倾没端；8—背斜轴、倾没端；9—河流；10—古火山口；11—火山角砾岩；a—小江断层；b—普渡河断层；c—麻塘断层；d—宝九断层

Figure 1. Geological structure outline map of Dongchuan deposit

下载: 全尺寸图片幻灯片

图 2 因民组（Pt₂ky）与平顶山组（Pt₁kp）不整合接触（据文献[11]修改）

Figure 2. Unconformable contact of Yinmin Formation and Pingdingshan Formation

下载: 全尺寸图片幻灯片

图 3 宝台厂—马柱硐构造剖面略图

Figure 3. The outline map of Baotaichang-Mazhudong tectonic profile

下载: 全尺寸图片幻灯片

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