Geology 0091-7613 04 16 2019 06 01 2019 47 6 Aurèle Vuillemin GFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, Telegrafenberg, 14473 Potsdam, Germany Present address: Department of Earth and Environmental Sciences, Paleontology and Geobiology, Ludwig-Maximilians-Universität, Richard-Wagner-Str. 10, 80333 Munich, Germany Richard Wirth GFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, Telegrafenberg, 14473 Potsdam, Germany Helga Kemnitz GFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, Telegrafenberg, 14473 Potsdam, Germany Anja M. Schleicher GFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, Telegrafenberg, 14473 Potsdam, Germany André Friese GFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, Telegrafenberg, 14473 Potsdam, Germany Kohen W. Bauer Department of Earth, Ocean, and Atmospheric Sciences, and of Microbiology and Immunology, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC V6T 1Z4, Canada Rachel Simister Department of Earth, Ocean, and Atmospheric Sciences, and of Microbiology and Immunology, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC V6T 1Z4, Canada Sulung Nomosatryo GFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, Telegrafenberg, 14473 Potsdam, Germany Research Center for Limnology, Indonesian Institute of Sciences (LIPI), Jl. Raya Bogor, Cibinong, Bogor, West Java 16911, Indonesia Luis Ordoñez Department of Earth Sciences, University of Geneva, rue des Maraîchers 13, 1205 Geneva, Switzerland Daniel Ariztegui Department of Earth Sciences, University of Geneva, rue des Maraîchers 13, 1205 Geneva, Switzerland Cynthia Henny Research Center for Limnology, Indonesian Institute of Sciences (LIPI), Jl. Raya Bogor, Cibinong, Bogor, West Java 16911, Indonesia Sean A. Crowe Department of Earth, Ocean, and Atmospheric Sciences, and of Microbiology and Immunology, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC V6T 1Z4, Canada Liane G. Benning GFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, Telegrafenberg, 14473 Potsdam, Germany Department of Earth Sciences, Free University of Berlin, 12249 Berlin, Germany School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK Jens Kallmeyer GFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, Telegrafenberg, 14473 Potsdam, Germany James M. Russell Department of Earth, Environmental, and Planetary Sciences, Brown University, 324 Brook Street, Providence, Rhode Island 02912, USA Satria Bijaksana Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jl. 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