海洋地震台网:海洋中的宽频带地震学

• 作 者: E.Kappel 刘希玲
• 机 构: 国家地震局地球物理研究所,
• 出 处: 世界地震译丛
• 发表日期: 1997年05期
• 关键词: 地震台网 东太平洋 地震活动性 地震台站 核幔边界 最下部 俯冲板块 软流层 地球物理研究 海底地震

1 科学原理有两类需要海洋地震台网(OSN)的科研任务:需要分布尽可能广的永久性地震台站的全球性课题,包括在海洋地区的覆盖,和重点研究海洋盆地中的地震活动性、结构和构造等区域性课题,这两种研究需要不同类型的设备,尽管每类研究的内容可能会有所重叠。很明显,全球地震台网在东太平洋和南半球海洋区域的台站覆盖有很大的空区,而且这个空缺不能用海岛台站来弥补。这些空区: 妨碍了大部分核幔边界和最下部地幔

1 Scientific principles There are two types of scientific missions that require an oceanographic seismic network (OSN): global issues requiring the deployment of as wide a range of permanent seismic stations as possible, including coverage in marine areas and focusing on seismic activity in marine basins Gender, structure and structure of regional issues such as these two studies require different types of equipment, although the content of each type of research may overlap. Obviously, the global seismographic network has a large freeboard in the stations of the eastern and southern hemispheres, and this gap can not be offset by the island station. These empty areas: hinder the majority of the boundaries of the mantle and the lowermost mantle