he initial water temperature (used as the pressure-transmitting fluid) was set at 12 °C. The final temperature was calculated theo- retically according to the formula Tf = Ti + a P (Viazis et al., 2007), where Tf is the final temperature (°C), Ti is the initial tem- perature (°C), a is the compression heating factor (2.5°C/ 100 MPa) (Balasubramanian & Balasubramanian, 2003), and P is the applied pressure (MPa).