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pure and applied geophysics

, Volume 63, Issue 1, pp 40–59 | Cite as

Lateral variation of Rayleigh wave dispersion character Part III: Atlantic Ocean, Africa and Indian Ocean

  • Tetsuo Santô
Article

Summary

In continuation of Part II, investigations of the lateral variation of group velocity dispersion character of Rayleigh waves were carried out for the Atlantic and Indian Oceans and for Africa. Maximum group velocity at such short periods as 25 to 30 seconds is observed in the Mid-Atlantic Ridge, in agreement with earlier observations from the East Pacific Rise, but was not observed for the Indian Rise. ‘Less continental’ dispersion regions are found in Africa and in the whole of the Arabian Peninsula. Eastern half of the Indian Ocean seems to have a typical oceanic crustal structure. The dispersion patterns were checked in every area by earlier data. All results so far obtained by the present author on the lateral variation of dispersion characteristics have been compiled into a world map.

Keywords

Indian Ocean Lateral Variation Group Velocity Rayleigh Wave Crustal Structure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Birkhäuser Verlag 1966

Authors and Affiliations

  • Tetsuo Santô
    • 1
  1. 1.Seismological InstituteUppsalaSweden

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