福建沿海全新世地壳垂直运动速率

RATES OF HOLOCENE VERTICAL MOVEMENTS OF FAULT BLOCKS ALONG THE COAST OF FUJIAN PROVINCE

本文以78个古海面遗迹为根据,运用线性相关的计算方法讨论了:(1)闽东沿海(福鼎、宁德、罗源、连江等地);(2)福州盆地与长乐海岸平原;(3)福清龙高半岛与平潭岛;(4)莆田沿海。(5)九龙江平原;(6)漳浦、云霄、东山、诏安等地的全新世地壳垂直运动速率。在全新世时本区大部分地区以上升运动为主、平均速率一般为0.8—2.8毫米/年,在时空上略呈规律性变化,结果与形变测量资料可以对比。

Based on the 78 14C data of sediments related to the former sea levels, and by means of linear relation, we have calculated the rates of vertical movements of following faulted blocks: (1) the coast of northeastern Fujian Province (including Fuding, Ningde, Luoyuan, and Lianjiang Counties); (2) Fuzhou Basin and Coastal Plain of Changle County; (3) Longtian-Gaoshan Peninsula of Fuqing County and Pingtan Island; (4) Coastal Plain of Putian; (5) Deltaic Plain and estuary of the Jiulongjiang River; (6) Coast of southern Fujian Province. The vertical movements of the faulted blocks during Holocene are characterized by uplifting with average rate from 0.8 to 2.8 mm/yr and can be comparable to the rates of crustal deformation obtained by leveling measurements.