1. 1British Geological Survey, Keyworth, Nottinghamshire NG12 5GG, UK
2. 2Department of Geosciences, Princeton University, Princeton, New Jersey 08544, USA
3. 3Department of Geosciences, Boise State University, Boise, Idaho 83725, USA
4. 4Department of Earth Sciences, University of Geneva, 1211 Geneva, Switzerland
5. 5Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, Indiana 47907, USA
6. 6Korea Basic Science Institute, Ochang, Cheongwon, Cheongju, Chungbuk 28119, Republic of Korea
7. 7Department of Geosciences, University of Oslo, N-0316 Oslo, Norway
8. 8Department of Geology and Geophysics, University of Wyoming, Laramie, Wyoming 82071, USA
9. 9Department of Earth, Marine and Environmental Sciences, University of North Carolina–Chapel Hill, Chapel Hill, North Carolina 27599, USA
10. 10Centre for Star and Planet Formation, Globe Institute, University of Copenhagen, Øster Voldgade 5-7, DK-1350 Copenhagen, Denmark
11. 11Département des sciences de la Terre et de l'atmosphère/Geotop, Université du Québec à Montréal, Montréal, Québec H2X 3Y7, Canada
12. 12Department of Earth Sciences, Memorial University of Newfoundland, St. John's, Newfoundland A1C 5S7, Canada
13. 13Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
14. 14Norges geologiske undersøkelse (NGU), Leiv Eirikssons vei 39, 7040 Trondheim, Norway
15. 15Department of Earth Sciences, University of Toronto, Toronto, Ontario M5S 3B1, Canada
16. 16Department of Earth & Planetary Sciences, Yale University, New Haven, Connecticut 06520, USA
17. 17Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire 03755, USA
18. 18School of Geosciences, University of the Witwatersrand, Johannesburg Wits 2050, South Africa
19. 19Department of Geology, University of Kansas, Lawrence, Kansas 66045, USA
20. 20Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
21. 21Department of Earth Science, University of California, Santa Barbara, Santa Barbara, California 93106, USA
22. 22Pacific Centre for Isotopic and Geochemical Research, Department of Earth, Ocean and Atmospheric Sciences, 2020-2207 Main Mall, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
23. 23Institute of Geochemistry and Petrology, ETH Zurich, 8092 Zurich, Switzerland
24. 24TU Bergakademie Freiberg, Institute for Mineralogy, Brennhausgasse 14, D-09596 Freiberg, Germany
25. 25Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China
26. 26Department of Earth and Planetary Sciences, University of California, Davis, Davis, California 95616, USA