supported by the National Natural Science Foundation of China(Grant No.40238060);the National Basic Research Program of China(Grant No.G20000467-02);the Key Project of the Chinese Academy of Sciences(Grant No.KZCX2-SW-117);the National Special Project(Grant No.2001DIA50041).
A segment of Mesozoic subduction-accretion zone was inferred across thenortheastern South China Sea at approximately NE450 orientation. Basic evidence includes thefollowing: A belt of peek gross horizontal Bouguer gra...