中国地质2013，Vol.40Issue(3)：800-806,7.
云南腾冲火山构造区的电性结构特征及其地质意义
Characteristics of electrical structure of Tengchong volcano-tectonic belt in Yunnan Province
摘要
Abstract
In order to choose the scientific drilling location,the survey collected Controlled-source Audio frequency Magnetotelluric (CSAMT) data along four E-W orientation profiles and Magnetotelluric (MT) data along two E-W orientation profiles between Tengchong County and Gudong Town in Yunnan Province.The resistivity model for the six profiles were obtained by data preprocessing and 2D inversion.The electrical structure of these profiles is characterized by the existence of two low resistivity layers in the crust of the basin.The shallow layer is stably existent in NS direction with the main part distributed from 300m to 1500m in depth.It consists of the bottom of water-bearing volcanic rocks and the top of granites and granite gravel rocks that form the heat reservoir of the Tengchong basin geothermal resource.The deep layer is a magma pocket serving as heat source,with 12～30 km depth and over 25 km E-W width between Mazhan Town and Qushi Town.The above electrical characteristics provide geophysical basis for the study of magma and volcanic activity in Tenchong volcanic-tectonic belt of Yunnan Province.关键词
云南腾冲/电磁法/火山构造/电性结构/热储层/岩浆囊Key words
Tengchong in Yunnan/ electromagnetic method/ volcano-tectonic/ electrical structure/ heat reservoir/magma pocket分类
天文与地球科学引用本文复制引用
谭捍东,姜枚,林昌洪,彭淼,吴良士,马欢,王忠凯,李晋津,谭嘉言..云南腾冲火山构造区的电性结构特征及其地质意义[J].中国地质,2013,40(3):800-806,7.基金项目
国家深部探测技术与实验研究专项大陆科学钻探选址与钻探实验(SinoProbe-05-07)资助. （SinoProbe-05-07）
