Shigeaki Ono, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan

Weronika Gorczyk, University of Western Australia, Crawley, WA, Australia, Christopher M Gonzalez, Monash University, Melbourne, Australia and Bruce E Hobbs, CSIRO Exploration and Mining, Perth, WA, Australia

Krista Lynn Sierra Sawchuk¹, Chris P McGuire² and Abby Kavner¹, (1)University of California Los Angeles, Los Angeles, CA, United States, (2)University of Edinburgh, Edinburgh, EH9, United Kingdom

Alfred Wilson, University of Leeds, Leeds, LS2, United Kingdom

Mainak Mookherjee, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States, Suraj Bajgain, Florida State University, Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States and Aaron Wolfgang Ashley, Florida State University, Tallahassee, FL, United States

Francesca Miozzi, University of Milan, Department of Earth Sciences, Milan, Italy and Simone Tumiati, Università degli Studi di Milano, Dipartimento di Scienze della Terra, Milan, Italy

Daniel Coulthard Jr, Massey University, Palmeston North, New Zealand, Naoya Sakamoto, Hokkaido University, Isotope Imaging Laboratory, Sapporo, Japan, Georg F Zellmer, Massey University, Volcanic Risk Solutions, Palmeston North, New Zealand, Morihisa Hamada, Japan Agency for Marine-Earth Science & Technology, Yokosuka, Japan and Hisayoshi Yurimoto, Hokkaido University, Division of Earth and Planetary Sciences, Sapporo, Japan

Georg F Zellmer, Massey University, Volcanic Risk Solutions, Palmeston North, New Zealand, Naoya Sakamoto, Hokkaido University, Isotope Imaging Laboratory, Sapporo, Japan, Isao Sakaguchi, National Institute of Material Sciences, Tsukuba, Japan, Takeshi Kuritani, Osaka City University, Sumiyoshi-Ku, Osaka, Japan; Hokkaido University, Department of Earth and Planetary Sciences, Sapporo, Japan, Minami Kuroda, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan and Hisayoshi Yurimoto, Hokkaido University, Division of Earth and Planetary Sciences, Sapporo, Japan

Abhisek Basu, Florida State University, Earth Ocean & Atmospheric Sciences, Tallahassee, FL, United States and Mainak Mookherjee, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States

Gaohua Zhu, Chinese University of Hong Kong, Hong Kong, Hong Kong, Douglas Wiens, Washington University in St Louis, St. Louis, MO, United States, Hongfeng Yang, Georgia Institute of Technology, Atlanta, GA, United States, Jian Lin, Woods Hole Oceanographic Institution, Department of Geology and Geophysics, Woods Hole, MA, United States, Min Xu, CAS Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Guangzhou, China and Qingyu You, Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China

Nestor G Cerpa, University of Montpellier, Montpellier, France, José Alberto Padrón-Navarta, University of Montpellier II, Montpellier Cedex 05, France and Diane Arcay, UMR5243 Geosciences Montpellier, CNRS, Montpellier, France

Yanhao Lin, Carnegie Institution for Science Washington, Earth and Planets Laboratory, Washington, DC, United States, Qingyang Hu, Center for High Pressure Science and Technology Advanced Research, Shanghai, China, Jing Yang, Carnegie Institution of Washington, Earth and Planets Laboratory, Washington, DC, United States, Yue Meng, HPCAT, X-Ray Science Division, Argonne National Laboratory, Argonne, United States, Yukai Zhuang, Center for High Pressure Science and Technology Advanced Research, Beijing, China, Michael J Walter, Carnegie Institution for Science, Geophysical Laboratory, Washington, DC, United States and Ho-kwang Mao, Center for High Pressure Science & Technology Advanced Research, Shanghai, China

Benjamin Strozewski¹, Johannes Buchen¹, Wolfgang Sturhahn¹, Itaru Ohira², Takayuki Ishii³, Stella Chariton⁴, Thomas Toellner⁵ and Jennifer M Jackson¹, (1)California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States, (2)Ehime University, Geodynamics Research Center, Ehime, Japan, (3)University of Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany, (4)University of Chicago, Center for Advanced Radiation Sources, Chicago, IL, United States, (5)Argonne National Laboratory, Advanced Photon Source, Argonne, IL, United States

Ali Fuat Yuvali¹, Jason N Ott², Elise Knittle¹ and Quentin Williams¹, (1)University of California Santa Cruz, Santa Cruz, CA, United States, (2)University of Washington Seattle Campus, Earth and Space Sciences, Seattle, WA, United States