S1: Earth materials science in igneous processes (Special Session)

[S1P-01] Size-dependent residual pressure of fluid inclusion in mantle xenolith

*Yuuki Hagiwara¹, Junji Yamamoto² (1. Hokkaido Uni. Sci., 2. Hokkaido Uni. Museum.)

Keywords:Fluid inclusion, Raman spectroscopy, Geobarometer, Mantle xenolith, Carbon dioxide

In many geological settings, density of fluid inclusions has been studied for ascertaining the depth provenance of mantle xenolith. However, during laboratory experiments and exhumation processes, the initial density of a fluid inclusion is overwhelmed by various confounding factors. To elucidate the re-equilibration process of fluid inclusion, we investigated the relation among fluid density, inclusion size, and mineral species.