摘要
滇西南地区处于三江构造带,断裂构造发育,构造-岩浆活动强烈,为进一步摸清其断裂构造格局、深部构造特征,利用多年来在研究区及周缘完成的各类勘探资料,以研究区的重力、航磁数据为主,结合相关资料,开展重力、航磁数据处理及反演解释,分析提取反映研究区深大断裂的重磁异常信息,提取反映莫霍面的异常信息并反演其起伏形态。基于以上研究,对主要断裂带深部构造特征进行了分析,并对区内典型金属成矿与断裂构造格架及剩余异常信息之间的相关关系进行了分析,探讨了研究区成矿规律进而综合讨论了其成矿远景,为研究区典型金属矿产战略调查和进一步勘探选区提供了依据。
In Southwest Yunnan,the fault system,located at Sanjiang structural belt,is fully developed, with intense tectonic activity and magmatism.In order to further-ascertain fault structure framework and deep structure,the paper analyzes various exploration data in the study area and its peripheral area mainly based on the gravity and magnetic data in Southwest Yunnan,combing with related geological,and conducts gravity and magnetic data processing and comprehensive inversion to analyze and extract gravity and magnetic anomaly information reflecting huge fault.The paper then extracts anomaly information reflecting the Moho to obtain the undulation shape.Based on these studies,the paper analyzes the deep structure of the main faults,and employs the correlation of the typical metallogenic belt,fault structure framework and residual anomaly information in the study area,and then synthetically discusses the metallogenic regularity and prospect in research area,providing the typical metallogenic belt strategic investigation and further exploration area evaluation.
作者
屈念念
李家斌
朱大友
Qu Niannian;Li Jiabin;Zhu Dayou(China University of Geosciences(Beijing),Beijing 100083,China;Guizhou Geological Survey,Guiyang 550081,China;Guizhou Engineering Research Center for Geologic-Geophysical Exploration Development and Application,Guiyang 550081,China)
出处
《地质科技情报》
CSCD
北大核心
2018年第6期173-180,共8页
Geological Science and Technology Information
基金
中国地质调查局项目"云南临沧-勐海地区1:25万区域重力调查"(1212011087025)
贵州省地质矿产勘查开发局地质科学研究项目(黔地矿科合2016[32]号)
关键词
三江构造带
重磁异常
断裂体系
莫霍面
金属矿产
Sanjiang structural belt
gravity and magnetic anomaly
fault system
Moho
metal mineral
