苏北沿海陆上潮成砂体沉积区的发现及其地质意义  

Discovery of the Tidal-genetic Sandy Sedimentary Area at Subei Coastplain and Its Geological Significance

作　　者：赵娟[1] 李从先[1] 张桂甲[1] 

机构地区：[1]同济大学海洋地质与地球物理系,上海200092

出　　处：《同济大学学报（自然科学版）》1997年第1期82-86,共5页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金

摘　　要：根据钻孔资料，首次确定苏北沿海陆上砂质沉积区的范围．该砂质沉积区以东台为顶点，呈扇形向东散开，砂层厚的10～30m，东厚西薄，其中砂体的沉积结构和沉积构造显示，它们东潮流成因，在成因上与海域辐射砂洲相似，但处在不同的发育阶段．苏北沿海潮成砂质沉积区的发现对分析海域辐射砂洲的形成和演化过程提供了新的线索．Based on the core data, the boundary of the sandy sedhoentary area in Subei (Nothern Jiangsu Province) is delimited first time. The apex of the sandbody,stretching eastward fan-likely, locates in Dongtai City. The thickness of the sandbody ranges from 10 to 30 meters, thickening toward east. The sedimentary structure and texture show that the sandbody is of tidal-genesis, and it is genetically relative to the Radial Sandy Ridges in the sea area, but at different cvolution stages. The discovery of the sandy sedimentary arca of tidal- gcnetic in Subei coastplain provides a new cluo to analyse the formation and evolution of theRadial Sandy Ridges.

关 键 词：辐射沙洲 南黄海 陆上潮成砂区 海洋地质学 

分 类 号：P736[天文地球—海洋地质]