昆阳裂谷边缘刺穿构造力学特征及其与成矿关系厘定  

Mechanical characteristics of diapiric structures at the edge of Kunyang Rift Valley and determination of their relationship with mineralization

作　　者：胡一多 韩润生 徐建宇 吴红梅 HU Yiduo;HAN Runsheng;XU Jianyu;WU Hongmei(Kunming Industrial Vocational and Technical College,Anning 650302,Yunnan,China;School of Land and Resources Engineering,Kunming University of Science and Technology/Southwest Geological Survey Institute of Nonferrous Metal Mineral Geological Survey Center,Kunming 650093,Yunnan,China)

机构地区：[1]昆明工业职业技术学院,云南安宁650302 [2]昆明理工大学国土资源工程学院/有色金属矿产地质调查中心西南地质调查所,云南昆明650093

出　　处：《矿产与地质》2024年第4期663-669,共7页Mineral Resources and Geology

基　　金：国家自然科学基金资助项目(编号:42172086);云南省重大科技计划专项项目(编号:202202AG050014);云南省教育厅科学研究基金项目“基于机器视觉技术的矿山选矿工序能耗监测智能化研究”(编号:2024J1489)共同资助。

摘　　要：昆阳裂谷位处杨子地台西南缘,历经元古代以来的构造改造活化形成近南北向分布的裂陷格局。易门铜矿床处于昆阳裂谷西部,以刺穿构造广泛分布为特征。本文以矿床所处大地构造背景为基础,从矿区凤山铜矿和狮子山铜矿刺穿构造控矿特征为切入,以控矿构造分析和平面构造统计分析为研究依据,应用矿田地质力学方法对裂谷边缘刺穿构造的发生―发展―复合―转变过程等特点进行分析研究,结合构造实际特点探索刺穿作用的发生、发展与就位,从刺穿体与矿体空间分布关系和统一的力学体系探讨刺穿过程中的成矿条件和矿产分布规律。Kunyang Rift Valley is located on the southwest edge of the Yangzi Platform and has undergone tectonic transformation and activation since the Proterozoic era,forming a nearly north-south distribution pattern of rifts.Yimen copper deposit is located in the west part of the Kunyang Rift Valley and it is characterized by widespread distribution of diapiric structures.Based on the tectonic background of the deposit and the ore-controlling characteristics of the diapric structure in Fengshan copper deposit and Shizishan copper deposit,this paper analyzes and studies the characteristics of the occurrence,development and complex transformation process of the diapiric structure on the basis of ore-controlling structure analysis and plane structure statistical analysis.Based on the actual structural characteristics,the occurrence,development and placement of the diapiric effect are explored,and the metallogenic condition and mineral distribution regularity during the diapir process are discussed from the spatial distribution relationship between the diapiric body and the ore body and the unified mechanical system.

关 键 词：刺穿构造 成矿关系厘定 成因模型 昆阳裂谷 

分 类 号：P542[天文地球—构造地质学]