1. German Research Center for Geosciences (GFZ) Helmholtz Zentrum Potsdam D‐14473 Germany
2. Institut de Physique du Globe de Paris Sorbonne Paris Cité Univ. Paris Diderot CNRS Paris F‐75005 France
3. Géosciences Rennes UMR 6118‐CNRS Université de Rennes 1 Rennes F‐35042 France
4. Universidade de São Paulo Instituto de Geociências Rua do Lago 562, Cidade Universitaria 05508‐080 São Paulo Brazil
5. Department of Earth and Environmental Sciences Lehigh University Bethlehem PA USA
6. ETH Auguste‐Piccard‐Hof 1 8093 Zürich Switzerland