摘要
1994年,中日双方合作在南海北部开展了海洋三分量磁测实验工作,采用日本东京大学地震研究所新研制的船载三分量磁力仪(Shipboard Three Component Magnetmeter,STCM)在南海北部海盆成功获得了6条共约2 500km的三分量磁测资料。本文根据前人的研究思路实现了对实测三分量磁测资料的处理分析,改进了补偿圆滑滤波算法,首次提出了比原方法更加综合直观表示测区各种磁边界状况的磁边界走向图(Magnetic boundary strikediagram,MBSD)法,并且将处理结果与南海北部海盆已识别的磁条带及其他一些典型地质现象进行了对比分析,发现本方法所揭示出的二维及三维磁边界与南海的实际地质状况有良好的吻合关系,这表明该方法可以有效处理所采集的三分量磁测资料并对研究海底磁性构造体性质有帮助。
In 1994, Sino-Japan cooperative cruise for shipboard three-component magnetic field test was carried out in northern region of the South China Sea, using new Shipboard Three Component Magnetometer （STCM） developed by the Earthquake Institute of Tokyo University. About 2 500 km （6 lines） field survey data were acquired successfully. According to the magnetic boundary strike diagram （MBSD） method proposed by Seama N et al., the author analyzes these data and points out that the MBSD method can be used to express types of magnetic boundary synthetically and visibly. The author then conducts comparative analysis on the calculated result and the verified magnetic lineation of northern South China Sea basin and finds that they agree with each other very well. That study suggests that the MBSD method is useful when dealing with STCM data and studying marine magnetic structure.
出处
《热带海洋学报》
CAS
CSCD
北大核心
2009年第4期54-58,共5页
Journal of Tropical Oceanography
基金
中科院知识创新工程重要方向项目(KZCX3-SW-234-3)
国家科技支撑计划项目(2006BAB19B02)
边缘海重点实验室基金项目(BYH03A08)
关键词
南海
磁条带
船载三分量磁力仪
磁边界走向图
South China Sea
magnetic lineation
Shipboard Three Component Magnetometer （STCM）
magnetic boundary strike diagram （MBSD）
