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


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.


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Correspondence to Koji Masuda.

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Masuda, K., Fujimoto, K. & Arai, T. A new gas-medium, high-pressure and high-temperature deformation apparatus at AIST, Japan. Earth Planet Sp 54, 1091–1094 (2002).

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  • Pore Pressure
  • Rock Deformation
  • Granite Sample
  • Linear Variable Differential Transformer
  • Pressure Control System