1. The Centre for Earth Evolution and Dynamics University of Oslo Oslo Norway
2. Department of Earth, Ocean and Ecological Sciences University of Liverpool Liverpool UK
3. Now at the Department of Geological Sciences University of Florida Gainesville FL USA
4. Department of Geological and Mining Engineering and Sciences and Department of Physics Michigan Technological University Houghton MI USA
5. Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China
6. Department of Earth and Planetary Sciences University of California Berkeley CA USA
7. School of Geological Sciences and Engineering Yachay Tech University Ibarra Ecuador