High‐Pressure and High‐Temperature Single‐Crystal Elasticity of Cr‐Pyrope: Implications for the Density and Seismic Velocity of Subcontinental Lithospheric Mantle

Abstract

The subcontinental lithospheric mantle (SCLM) is the uppermost rigid part of the Earth's mantle overlain by the Earth's continental crust. Studies on xenoliths, xenocrysts, and mineral inclusions in igneous rocks suggest that garnet-peridotite is the representative rock of the SCLM (Griffin et al., 2009). Natural garnet commonly has complex composition, which is generally described as a solid solution of end members. The general formula of