1. Department of Earth Sciences, St Francis Xavier University, Antigonish, Nova Scotia, B2G 2W5, Canada
2. Earth Dynamics Research Group, the Institute for Geoscience Research (TIGeR), School of Earth and Planetary Sciences, Curtin University, WA 6845, Australia
3. Department of Geological Sciences, 316 Clippinger Laboratories, Ohio University, Athens, OH 45701, USA
4. Institute of Geology and Palaeontology, Charles University, Prague 2, 12843, Czech Republic
5. School of Earth, Atmosphere and Environment, Monash University, Clayton, Victoria 3800, Australia
6. State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
7. Department of Earth Sciences, Durham University, Durham, DH1 3LE, UK
8. State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
9. Institute of the Earth's Crust, Siberian Branch of the Russian Academy of Sciences, ul. Lermontova 128, Irkutsk 664033, Russia
10. Department of Geological Sciences and Geological Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada
11. Instituto Geológico y Minero de España (IGME), C/Ríos Rosas, 23, 28003 Madrid, Spain
12. School of the Environment, Geography and Geosciences, University of Portsmouth, Portsmouth PO1 3QL, UK
13. Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2E1, Canada
14. Department of Earth & Planetary Sciences, McGill University, 3450 Rue University, Montréal, Québec, H3A 0E8, Canada