@inproceedings{CTT100873320, author = {Tetsu Kogiso and Akira Ishikawa and Norikatsu Akizawa}, title = {Estimation of highly siderophile element abundances in the primitive mantle: Insights from peridotites of Timor-Tanimber Ophiolite}, booktitle = {}, year = 2022, } @inproceedings{CTT100775968, author = {Norikatsu Akizawa and Akira Ishikawa and Tetsu Kogiso}, title = {Petrographical and geochemical characteristics of mantle xenoliths from Tahiti and Moorea Islands: An insight into oceanic lithosphere accretion}, booktitle = {}, year = 2018, }