Department of Earth and Space Sciences, University of California, Los Angeles, CA 90095, USA

Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA

Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA

Department of Earth and Space Sciences, University of California, Los Angeles, CA 90095, USA

Department of Atmospheric and Oceanic Sciences, Institute of the Environment and Sustainability, University of California, Los Angeles, CA 90095, USA

Department of Marine Sciences, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA

Divisão de Geologia e Georecursos Marinhos, Instituto Português do Mar e da Atmosfera (IPMA), Av. de Brasília s/n, 1449-006 Lisbon, Portugal

Helmholtz Centre for Ocean Research (GEOMAR), Düsternbrooker Weg 20, 24105 Kiel, Germany

Department of Geological and Atmospheric Sciences, Iowa State University, Ames, IA 50011, USA

ISMAR-CNR, Via Gobetti 101, 40129 Bologna, Italy

Biology Department, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, MA 02543, USA

Université de Nantes, CNRS UMR6112, Laboratoire de Planétologie et Géodynamique, rue de la Houssinière, Nantes, France

Instituto Antártico Argentino, Cerrito 1248, C1010AAZ Buenos Aires, Argentina

Department of Geological Sciences, California State University, Los Angeles, CA 90032, USA

Department of Geological Sciences, California State University, Los Angeles, CA 90032, USA

Division of Biological Sciences, University of California, San Diego, CA 92093, USA