Xin Zhang
State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, P. R. China; School of Ocean and Earth Science, Tongji University, Shanghai 200092, P. R. China; Center for Marine Resources, Tongji University, Shanghai 20092, P. R. China;
China

Qingping Li
State Key Laboratory of Offshore Natural Gas Hydrates, CNOOC, Beijing 100027, P. R. China;
China

Lixia Li
State Key Laboratory of Offshore Natural Gas Hydrates, CNOOC, Beijing 100027, P. R. China;
China

Qi Fan
State Key Laboratory of Offshore Natural Gas Hydrates, CNOOC, Beijing 100027, P. R. China;
China

Jianhua Geng
State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, P. R. China; School of Ocean and Earth Science, Tongji University, Shanghai 200092, P. R. China; Center for Marine Resources, Tongji University, Shanghai 20092, P. R. China;
China