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Earth Planets Space, Vol. 54 (No. 11), pp. 1091-1094, 2002

A new gas-medium, high-pressure and high-temperature deformation apparatus at AIST, Japan

Koji Masuda, Koichiro Fujimoto, and Takashi Arai

Institute of Geoscience, National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 7, Tsukuba 305-8567, Japan

(Received December 30, 2001; Revised September 30, 2002; Accepted September 30, 2002)

Abstract: In order to obtain information about the deformation and fluid-flow processes in seismogenic regions, we designed and constructed an original Japanese-type gas-medium deformation apparatus capable of achieving both high pressure and high temperature. The present apparatus can produce a basic environment in which the confining pressure reaches 200 MPa by argon gas, pore pressure reaches 200 MPa either by argon gas or water, and temperature reaches 800°C. We report a new gas-medium apparatus for rock deformation, presenting preliminary results as an example of test results.


Corresponding author E-mail: koji.masuda@aist.go.jp


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