Noble Gas Isotopic Constraints on Mantle Circulation: Insights from North Pacific Petit-Spot Mantle Xenoliths

Takaaki Arai

Presentation information

[E] Oral

S (Solid Earth Sciences ) » S-GC Geochemistry

[S-GC45] Volatiles in the Earth - from Surface to Deep Mantle

Mon. May 25, 2026 10:45 AM - 12:15 PM Convention Hall (CH-B) (International Conference Hall, Makuhari Messe)

Chairperson:Hanyu Takeshi(Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics), Caracausi Antonio(National Institute of Geophysics and Volcanology)

10:45 AM - 11:00 AM

[SGC45-07] Noble Gas Isotopic Constraints on Mantle Circulation: Insights from North Pacific Petit-Spot Mantle Xenoliths

Takaaki Arai², *Hirochika Sumino¹, Nanae Fukushima¹, Naoto Hirano³, Shiki Machida⁴, Akira Ishikawa⁵, Norikatsu Akizawa⁶ (1. Research Center for Advanced Science and Technology, The University of Tokyo, 2. Graduate School of Science, The University of Tokyo, 3. Center for Northeast Asian Studies, Tohoku University, 4. Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 5. Department of Earth and Planetary Sciences, Institute of Science Tokyo, 6. Graduate School of Advanced Science and Engineering, Hiroshima University)

Keywords:noble gas, mantle, mantle xenolith, petit-spot