Host: Japan Association of Mineralogical Sciences
Plagioclase is a major constituent mineral in the Earth's crust .We prepared the samples of polycrystalline labradorite and measured compressional wave velocities (Vp) and shear (Vs) wave velocities. Ultrasonic measurements on these samples were conducted up to 1.0 GPa in a temperature range of 25-450°C in a piston cylinder apparatus.