1. Eurasia Institute of Earth Sciences Istanbul Technical University Maslak/Istanbul 34469 Turkey
2. Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Potsdam 14473 Germany
3. A.A. Trofimuk Institute of Petroleum Geology and Geophysics SB RAS Novosibirsk 630090 Russia
4. V. S. Sobolev Institute of Geology and Mineralogy SB RAS Novosibirsk 630090 Russia
5. Department of Geology and Geophysics Novosibirsk State University Novosibirsk 630090 Russia