Older magma at Aso caldera than at Unzen stratovolcano in south west Japan as recorded through helium isotopes

Yuji Sano; Takanori Kagoshima; Maoliang Zhang; Naoto Takahata; Tetsuji Onoue; Tomo Shibata; Yoshiro Nishio; Ai-Ti Chen; Hyunwoo Lee; Tobias P. Fischer; Dapeng Zhao

doi:10.1038/s43247-022-00649-6

Communications Earth & Environment (Jan 2023)

Older magma at Aso caldera than at Unzen stratovolcano in south west Japan as recorded through helium isotopes

Yuji Sano,
Takanori Kagoshima,
Maoliang Zhang,
Naoto Takahata,
Tetsuji Onoue,
Tomo Shibata,
Yoshiro Nishio,
Ai-Ti Chen,
Hyunwoo Lee,
Tobias P. Fischer,
Dapeng Zhao

Affiliations

Yuji Sano: Center for Advanced Marine Core Research, Kochi University
Takanori Kagoshima: Graduate School of Science and Engineering, University of Toyama
Maoliang Zhang: Institute of Surface-Earth System Science, Tianjin University
Naoto Takahata: Atmosphere and Ocean Research Institute, University of Tokyo
Tetsuji Onoue: Department of Earth and Planetary Sciences, Kyushu University
Tomo Shibata: Institute for Geothermal Sciences, Kyoto University
Yoshiro Nishio: Research and Education Faculty, Kochi University
Ai-Ti Chen: Department of Geosciences, National Taiwan University
Hyunwoo Lee: School of Earth and Environmental Sciences, Seoul National University
Tobias P. Fischer: Department of Earth and Planetary Sciences, University of New Mexico
Dapeng Zhao: Department of Geophysics, Graduate School of Science, Tohoku University

DOI: https://doi.org/10.1038/s43247-022-00649-6
Journal volume & issue: Vol. 4, no. 1
pp. 1 – 8

Abstract

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Helium isotopes from groundwater and hot springs at the stratovolcano, Unzen, have a stronger mantle signature than for the nearby caldera volcano, Aso, which suggests that magma at Unzen is younger still supplied with primordial mantle helium.

Published in Communications Earth & Environment

ISSN: 2662-4435 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science: Geology; Geography. Anthropology. Recreation: Environmental sciences
Website: https://www.nature.com/commsenv/

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