关键词: 闽粤台沿海, 北西西向最新构造带, 海岸升降, 高位海滩岩, 大震的构造标志

Abstract: The latest active tectonic zones,consisting of several NWW-trending uplifts and denressions. have been formed gradually in Fujian-Guangdong-Taiwan coastal area since Taiwan orogeny. These tectonic zones along with the known NE-NNE-trending uplift-depression zones have constituted a regional mosaic structure framework.In addition to plate collision and subduction,as well as the upwarping of upper mantle materials,the principal features of the region,such as the large amplitude of the fault throw or the upheaval of Moho surface,the great thickness of low velocity layer,crustal thinning,significant differential movement of the earth surface in the last 2000—3000 years and the NWW-trending tectonic activity in Taidong offshore,also provide important tectonic background for the occurrence of large earthquake.

Key words: The latest NWW-trending tectonic zone, Fujian-Guangdong-Taiwan coastal area, Coastal elevation and subsidence, High-level beach rock, tectonic indicators of large earthquake