摘要
本文对泉州平原的第四纪岩石地层、沉积岩相、生物地层、年代地层和新构造地貌等进行系统的综合研究对比,从中发现,相邻钻孔虽然高程相近,属同一地貌单元,但孔中地层时代、厚度、沉积岩相、生物地层和年代地层,相差悬殊,不能对比。由此认为,泉州平原是新构造期的活动断裂所致。新构造期的活动断裂是继承北西向晋江—永安大断裂和北东向长乐—南澳深断裂所形成的,中全新世距今约5650a.由于清源山—法石和亭店—下辇北西向活动断裂作用的结果,导致海水入侵,漫溢泉州平原。
The paper focuses on a discussion of the neotectonics in the Quanzhou Plain.Based on the syste-mastic study of the lithostratigraphy,sedimentary facies,biostratigraphy,chronostratigraphy and neo-tectonic landforms of Quaternary in the Quanzhou Plain,it is discovered in the area that within thesame geomorphological unit the strata at the approximate sealevel have a great difference in fossils,sed-imentary facies and stratigraphical time and thickness,therefore,there is little comparison betweenthem.The author concluded that the active faults in the neotectonic stage developed from both Jinjiang—Yongan Fault trending NW and Changle—Nan'ao Deep Fault trending NE,and that the activity ofQingyuanshan—Fashi Fault and Tingdian—Xianian Fault trending NW resulted in transgression duringthe Middle Holcene(about 5 650a).
出处
《福建地质》
1991年第4期309-320,共12页
Geology of Fujian
