摘要
通过研究大陆地壳和上地幔尺度综合物性成像方法,尽可能预先建立覆盖全国、网度为4°×4°的阵列式区域电磁参数标准网控制格架,并以华北和青藏为基地创立阵列式区域大地电磁场"标准点"观测网的构建方法、技术;构建华北和青藏地区壳、幔电磁参数三维结构标准模型"格架",以及不同网度的壳、幔物性三维结构模型,为覆盖全国的阵列式区域地球物理"标准点"观测网最佳网度选择提供范例,为最终建立中国大陆地壳和上地幔综合地球物理三维结构标准模型,开展地球物理一地质综合建模研究提供实验数据和方法技术支撑:为预测我国超大型金属成矿远景区提供方向,为将来"地壳探测工程"所包含的中国大陆地壳及上地幔物性三维结构探测解决大地电磁场"标准化"探测作必要的人才和技术准备.
Through studying the continental crust and upper mantle scale integrated imaging methods,a framework of the standard array grid of the electromagnetic parameters in a grid spacing of 4°×4°will be established all over the country.Starting with the establishment of a base network of magnetotellurics(MT)array in North China and Qinghai-Tibetan Plateau,the researchers will study methods and techniques for the“standard grid”observation network.Meanwhile,a framework of the three-dimensional(3D)“standard model”of the crust and upper mantle electric structure will be constructed.Models of different scales will be tested and examined to provide a guide and example for the future countrywide geophysical“standard grid”observation framework.The project will also provide experimental data and technical support for the final establishment of the integrated geophysical 3D“standard model”of China’s continental crust and upper mantle structure and for the subsequent study of geophysical-geological integrated modeling.Furthermore,the project might provide some information for predicting potential gigantic metallogenic belts and make the necessary personnel and technical preparation for the future magnetotelluric“standardized”survey solution of the 3D structure of the crust and the upper mantle in China’s mainland in the project SinoProbe.
作者
杨文采
魏文博
金胜
孟小红
叶高峰
徐义贤
方慧
邓明
景建恩
YANG Wen-cai;WEI Wen-bo;JIN sheng;MENG Xiao-hong;YE Gao-feng;XU Yi-xian;FANG Hui;DENG Ming;JING Jian-en(Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037;China University of Geosciences,Beijing 100083;China University of Geosciences,Wuhan,Hubei 430074;Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang,Hebei 065000)
出处
《地球学报》
CAS
CSCD
北大核心
2011年第S01期24-33,共10页
Acta Geoscientica Sinica
基金
国家专项“深部探测技术与实验研究”(编号:SinoProbe-01)资助。
