Key Laboratory of Submarine Geosciences and Technology;
Ministry of Education;
Department of Marine Geoscience;
Ocean University of China;
Qingdao 266100;
China;
Key Laboratory of Marine Hydrocaobon Resources and Environment Geology MLR;
Qingdao Institute of Marine Geology;
Qingdao 266071;
China;
Laboratory of Submarine GeoScience;
Second Institute Oceanography;
State OceanicAdministration;
Hangzhou 310012;
China;
Petrology of the Oceanic Crust;
Geosciences Department;
University of Bremen;
Bremen 28359;
Germany;