[1] Univ Texas Dallas, Dept Geosci, Richardson, TX 75083 USA
[2] Sorbonne Univ, Inst Sci Terre Paris ISTeP, Paris, France
[3] Univ Michigan, Dept Earth & Environm Sci, Ann Arbor, MI 48109 USA
[4] Univ Potsdam, Inst Earth & Environm Sci, Potsdam, Germany