上海佘山(SSE)地震台站下方170km深度低速界面研究

- 1.
  中国地震局兰州地震研究所,兰州 730000
- 2. 中国地震局地震预测研究所兰州科技创新基地,兰州 730000
- 3. 东京大学地震研究所,东京 113-0032

详细信息

收稿日期: 2010-03-10

修回日期: 2011-01-24

上线日期: 2011-03-20

Study on the low-velocity discontinuity at the depth of 170 km beneath SSE station in Shanghai, China

- 1.
  Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou, 730000, China
- 2. Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 73000, China
- 3. Earthquake Research Institute, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan

Received Date: 10 March 2010

Revised Date: 24 January 2011

Available Online: 20 March 2011

摘要: 利用接收函数多次波研究了上海SSE台站下方170 km深度低速界面.通过全波场理论接收函数模拟,对观测资料进行了合理解释.结合该区域已有研究成果,推断该低速界面可能由软流圈中的低速异常体引起.另一方面,该结果也和面波层析成像结果相一致.
- 接收函数 /
- 多次波 /
- 软流圈 /
- 低速异常
Abstract: The low-velocity discontinuity at 170 km depth was determined with multiples on the receiver functions beneath the SSE station in Shanghai, China. The synthetic receiver functions calculated from full-wave field seismograms explain the observed results perfectly. This low-velocity discontinuity might result from the low velocity abnormities in asthenosphere. The result is also consistent with the result from surface-wave tomography.
- Receiver functions /
- Multiples /
- Asthenosphere /
- Low velocity abnormities