Possibility of the Application of the Ultra-long Electromagnetic Wave Remote Sensor to Marine Geological Exploration

查看全文 作　　者：HOU [1]Guiting;QIAN [1]Xianglin;WANG [1]Shuyuan;SUN [1]Jing 机构地区：[1]Department of Geology,Peking University,Beijing 100871 出　　处：《Acta Geologica Sinica(English Edition)》索引2000年第74卷第2期,共3页 摘　　要：The ultra-long electromagnetic wave remote sensing technique developed by Peking University is one of new future techniques, which can detect the submarine geological information from the depth of 20 to 10000 m below the surface by receiving natural ultra-long electromagnetic waves (n Hz to n 100 Hz). The new remote sensor is composed of three parts: a main instrument with a portable computer, an antenna with an amplifier and an external power.The new remote sensing technique is characterized by good stability and reproducibility at the same spot but at different times and high sensitivity and high signal-to-noise ratio, and can reveal geological and lithologic boundaries as well as strata and related mineral sources. Two years of marine geological experiments on this technique have indicated that it can solve many problems in marine geological exploration, e.g. the burial depths of sea-floor mud, Quaternary sediments and submarine structures. This technique can be applied to detecting the sea bed 关 键 词：ultra-long electromagnetic wave new remote sensor lithologic interface submarine information