极地研究

极地研究 ›› 1995, Vol. 6 ›› Issue (1-English): 30-38.

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Crust-mantle structure under South Pole and Ross Sea Beach in Antarctica

Shu Peiyi and Zhang Bo   

  1. Institute of Geophysics, Academia Sinica, Beijing 100101, China
  • 出版日期:1945-03-30 发布日期:1945-03-30
  • 通讯作者: Shu Peiyi

Crust-mantle structure under South Pole and Ross Sea Beach in Antarctica

Shu Peiyi and Zhang Bo   

  1. Institute of Geophysics, Academia Sinica, Beijing 100101, China
  • Online:1945-03-30 Published:1945-03-30
  • Contact: Shu Peiyi

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摘要：

A comparison of theoretical seismograms under discussion with four teleseismograms recorded by WWSSN of SBA (New Zealand) and SPA (U. S. A.), shows that the crustal thickness beneath South Pole is a double-layered structure, about 45 km; crustal thickness below the Ross Sea Beach, a single structure, is about 24 km; and at the depth of 350～450 km there exists a low velocity layer. The above results indicate the different tectonic characteristics on both sides of Antarctic Transantarctic Mountains.

关键词: Antarctica, South Pole Station, Scott Base, crust-mantle structure

Abstract:

A comparison of theoretical seismograms under discussion with four teleseismograms recorded by WWSSN of SBA (New Zealand) and SPA (U. S. A.), shows that the crustal thickness beneath South Pole is a double-layered structure, about 45 km; crustal thickness below the Ross Sea Beach, a single structure, is about 24 km; and at the depth of 350～450 km there exists a low velocity layer. The above results indicate the different tectonic characteristics on both sides of Antarctic Transantarctic Mountains.

Key words: Antarctica, South Pole Station, Scott Base, crust-mantle structure