Upper crustal structure of the Prince Olav Coast, East Antarctica

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概要

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• The P-wave velocity structure of a part of the Prince Olav Coast, East Antarctica was revealed by a seismic refraction experiment conducted by the 21st Japanese Antarctic Research Expedition in July 1980. Ten seismic stations were set along a line with a length of about 10 km at intervals of about 1 km. The station consists of a seismometer and a direct analogue data-recorder with an electric panel-heater in an insulated box. The observed travel times of the first and later arrivals from two explosions at both ends of the line were analyzed. The P-wave velocity of the basement complex is 6.02 km/s which is a typical value in East Antarctica. This basement complex is covered by the ice sheet with the thickness of about 700-1000 m. No layer with a velocity less than 6 km/s is detected between the ice sheet and the basement complex.

• 国立極地研究所の論文

著者

• Ikami Akira

  Rogional Center For Earthquake Prediction Observation School Of Science Nagoya University

• Ito Kiyoshi

  Rogional Observation Center for Earthquake Prediction,Faculty of Science,Kyoto University

• Ito Kiyoshi

  Rogional Observation Center For Earthquake Prediction Faculty Of Science Kyoto University

関連論文

• Deep crustal structure along the profile between Syowa and Mizuho Stations, East Antarctica
• Upper crustal structure beneath the Ongul Island, East Antarctica
• Upper crustal structure of the Prince Olav Coast, East Antarctica
• Amplitudes of seismic waves on ice sheet in East Antarctica
• Nature of noises on ice sheet in East Antarctica
• Velocity distribution on ice sheet in Prince Olav Coast, East Antarctica

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