摘要
介绍了洋中脊的全球分布和构造特征,对全球主要的、不同扩张速率的洋中脊进行了分类和列表描述;对洋中脊的构造特征,如地形特征、地壳厚度与扩张速率的关系及扩张轴下的岩浆房的特征、洋中脊与地幔柱的相互作用进行了阐述。回顾了海底地震仪在洋中脊构造调查中的应用及取得的主要成果。简要介绍了我国将用海底地震仪开展洋中脊构造调查的技术路线。
The global distributions and structure characteristics of mid-ocean ridges were introduced in this paper, including the classification of main mid-ocean ridges based on spreading rates, basic characteristics of mid-ocean ridges such as geomorphology features, the relationship between crust thickness and spreading rate, the magma chamber beneath the mid-ocean ridge as well as the interaction between the plume and the mid-ocean ridge. The applications and some important achievements of the ocean bottom seismometer （OBS） in surveys on the mid-ocean ridges were reviewed. Moreover, the principal technical scheme in our investigation on South West Indian Ridge, which is going to be fulfilled using OBS in the next year, is also briefly introduced.
出处
《华南地震》
2009年第4期72-84,共13页
South China Journal of Seismology
基金
大洋协会十一五项目<洋中脊综合调查及研究>所属子项目:西南印度洋中脊热液区OBS构造探测及动力过程的综合研究(DYXM-115-02-3)
关键词
岩浆房
海底地震仪
洋中脊
构造特征
扩张速率
Magma chamber
OBS
Mid-ocean ridge
Tectonic characteristics
Spreading rate
