OURO-DJOBOSEDIKOU B.^1,2,3,,
魏文博^1,2,3,,,
叶高峰^2,3,
金胜^1,2,3,
景建恩^2,3,
姬磊喆^2,3,
董浩^2,3,
张乐天^2,3,
尹曜田^2,3,
谢成良^2,3
1. 地质过程与矿产资源国家重点实验室, 北京 100083
2. 中国地质大学(北京)地球物理与信息技术学院, 北京 100083
3. 地下信息探测技术与仪器教育部重点实验室, 北京 100083

基金项目: 国家深部探测技术与实验研究（SinoProbe）专项下属大陆电磁参数标准网实验研究（SinoProbe-01）项目资助


详细信息

作者简介: OURO-DJOBO SEDIKOU B, 男, 1982年出生, 多哥人, 留学生, 博士研究生, 主要从事大地电磁测深方法技术和应用研究.E-mail:osebil81@yahoo.fr

通讯作者: 魏文博, 男, 1945年出生, 教授, 主要从事电磁探测方法理论和地球深部结构与动力学过程教学及研究.E-mail:wwb5130@cugb.edu.cn

中图分类号: P317;P318

收稿日期:2017-11-01
修回日期:2018-03-11
上线日期:2018-06-05

Experiments of magnetotelluric observation network on North China and lithospheric conductivity structure from fast imaging method

OURO-DJOBO SEDIKOU B.^1,2,3,,
WEI WenBo^1,2,3,,,
YE GaoFeng^2,3,
JIN Sheng^1,2,3,
JING JianEn^2,3,
JI LeiZhe^2,3,
DONG Hao^2,3,
ZHANG LeTian^2,3,
YIN YaoTian^2,3,
XIE ChengLiang^2,3
1. Sta Key Laboratory of Geological Processes and Mineral Resources, Beijing 100083, China
2. School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China
3. Geo-detection Laboratory, Ministry of Education of China, Beijing 100083, China


More Information

Corresponding author: WEI WenBo,E-mail:wwb5130@cugb.edu.cn

MSC: P317;P318

--> Received Date: 01 November 2017
Revised Date: 11 March 2018
Available Online: 05 June 2018


摘要
摘要:关于中国大陆岩石圈导电性结构研究越来越引起人们的重视，而目前研究大陆岩石圈导电性结构的主要方法是大地电磁测深（Magnetotelluric sounding）.为此，在国家项目"深部探测技术与实验研究（SinoProbe）"专项里开展了"大陆电磁参数标准网实验（SinoProbe-01）"研究，完成了华北1°×1°地理坐标网度的大地电磁测深"标准点"阵列（Array）观测.本文详细论述了华北SinoProbe-01项目1°×1°MT"标准点"阵列观测实验的概况，以及通过精细的MT数据处理和一维Niblett-Bostick变换快速成像，所获取的华北地区岩石圈导电性三维成像模型.在分析华北岩石圈导电性结构特征的基础上，从电性结构角度把华北与邻区岩石圈划分为胶辽、燕山、鲁西、太行—吕梁等低导电性（高电阻率）块体，内蒙古、阿拉善和祁连中等导电性块体和黄淮、鄂尔多斯、秦岭良导电性（低电阻率）块体，进一步从导电性的角度证实了华北克拉通是由多个块体集合而成的观点.
关键词: 华北岩石圈/
大地电磁测深“标准点”阵列/
Niblett-Bostick变换/
导电性结构/
构造格局

Abstract:The electrical resistivity structure beneath the continent of the Chinese Mainland has triggered worldwide concerns during recent several decades. The main geophysical method of surveying electrical structure of continental lithosphere is Magnetotelluric sounding (MT). Therefore, in the project SinoProbe-01 (i.e., Experimental Study of the Continental Standard Grid of Electromagnetic Parameters) belonging to the national research program SinoProbe (Deep Exploration Tecnology and Experimental Research of China), we have deployed 1°(Latitude)×1°(Longitude) standard MT array covering the entire North China. In this paper, we introduce the general situation of SinoProbe-01. In addition, we achieved the electrical resistivity structure of lithosphere beneath North China through fine data processing and rapid imaging by 1-D Niblett-Bostick transform. Based on the analysis of the lithospheric resistivity structure, the lithosphere beneath North China and its adjacent regions can be divided into several high-resistivity blocks (e.g., Jiaoliao, Yanshan, Luxi and Taihang-Lüliang), mid-conductivity blocks (e.g., Inner Mongolia, Alxa and Qilian) and low-resistivity blocks (e.g., Huanghuai, Ordos, Qinling). This observation further confirm the previous inference that the North China craton was formed though amalgamation of multiple micro-continental blocks.
Key words:North China Lithosphere/
Magnetotelluric sounding "standard point" array/
Niblett-Bostick transform/
Conductivity structure/
Tectonic framework



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