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本研究区海洋带位于福建省莆田县南部兴化湾以西、湄州湾以东的半岛和岛屿地带,属于山地丘陵海岸,面积约700多平方公里。 作者通过野外调查和~(14)C同位素年代测定等研究认为,就我国目前已有关于各地海岸带升降问题的研究报道来看,本研究区海岸带三千多年以来断块差异升降运动强烈,其升降幅度、变化频率和速率是罕见的。通过对海岸带沉降的研究发现,本研究区的强烈沉降往往与地震的发生有一定的对应关系。另外还发现,本研究区从海域的岛屿到大陆的半岛为两条北东向断隆带—断陷带所组成的现代差异升降带,并超越本区向北东延伸。
The study area is located in the west of Xinghua Bay, south of Putian County, Fujian Province, west of Meizhou Bay Peninsula and the island zone, belonging to the mountainous hills and coasts, an area of about 700 square kilometers. According to the field investigation and ~ (14) C isotopic dating, the authors think that as far as China’s current reports on the coastline movements around the country are concerned, the ups and downs of the coasts in this study area have been strongly rising and falling for more than three thousand years , Its rate of change, frequency and rate of change are rare. Through the study on the settlement of coastal zone, it is found that the strong settlement of the study area often has some correspondence with the occurrence of the earthquake. In addition, it is also found that the study area extends from the island in the sea to the peninsula in the mainland by two NE-trending uplift-depressive belts, and extends beyond the region to the north-east.