Our Doctoral Student Published Research Findings

Akira Chiba, a doctoral student from the Department of Geosciences, Geotechnology, and Materials Engineering for Resources at our Graduate School, conducted a detailed study on the compositional zoning of olivine and the olivine-hosted melt inclusions in the Ogi picrite sill from Sado Island, Niigata Prefecture. He revealed that the olivine in this picrite originated from two different types of magma. Additionally, his study discussed the possibility of high-Mg andesite magma activity in the back-arc side of northeastern Japan during the Miocene.
These findings have been published online in the Journal of Mineralogical and Petrological Sciences.

• Journal of Mineralogical and Petrological Sciences: Origin of two types of olivine from the Ogi Picritic Dolerite Sill, northeast Japan