Rogional Observation Center for Earthquake Prediction,Far fculty of Science,Kyoto University
Rogional Centeor Earthquake Prediction Observation,School of Science,Nagoya University
抄録(英)
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.
雑誌書誌ID
AA00733470
雑誌名
Memoirs of National Institute of Polar Research. Ser. C, Earth sciences
Upper crustal structure of the Prince Olav Coast, East Antarctica
.png)
KJ00000011319
(1MB)
概要
