Andrea Giuliani, Carnegie Science, Earth & Planets Laboratory, Washington, DC, United States, Senan Oesch, ETH Zurich, Institute of Geochemistry and Petrology, Zurich, Switzerland, Federico Daniel Munch, Institute of Geophysics, ETH Zurich, Zurich, Switzerland, Ronghua Cai, China University of Geoscience Beijing, State Key Laboratory of Geological Processes and Mineral Resources, Beijing, China, Jingao Liu Prof, China University of Geosciences Beijing, Beijing, China, Mark D Kurz, WHOI, Department of Marine Chemistry & Geochemistry, Woods Hole, United States, Peter H Barry, WHOI, Woods Hole, United States, Luc S Doucet, Curtin University, Perth, Australia and Michael J Walter, Carnegie Institution for Science, Earth and Planets Laboratory, Washington, United States