Sound velocity measurement of Al-bearing anhydrous and hydrous bridgmanites

Abstract

Bridgmanite is a major constituent mineral in the lower mantle, and it is important to clarify the sound velocity to elucidate the mineral assembly (composition) of the lower mantle. In this study, as one of the physical property measurements of various Al-bearing bridgmanites, the sound velocity measurement under high temperature and high pressure was carried out by attempting a high-quality sintered sample synthesis. The results will be reported.