作者单位:Yuanyuan XIAO(Institute of Oceanology,Chinese Academy of Sciences,Qingdao 260071,China)Yaoling NIU(Department of Earth Sciences,Durham University,Durham DH1 3LE,UK)Kuo-Lung WANG(Institute of Earth Sciences,Academia Sinica,128 Academia Road,Section 2,Nankang,Taipei 11529,Taiwan)