地质通报2016，Vol.35Issue(10)：1578-1583,6.
渤海湾沿岸贝壳堤对潮滩有孔虫海面变化指示意义的影响
Sea-level indicated by foraminifera assemblages liv-ing in the open muddy flats with or without influence of the chenier ridges in Bohai Bay coastal area
摘要
Abstract
Based on comparison of the two categories of foraminifera fauna living on the modern open muddy tidal flats in the west coast of Bohai Bay, with or without chenier ridge, the authors thoroughly studied the variability indicating sea level elevations by dif⁃ferent foram assemblages in these two kinds of environment. Each category of forams, consisting of five assemblages and correspond⁃ing to five subzones, i.e., high salt marsh, low salt marsh, upper intertidal, upper-middle intertidal and middle-lower intertidal suben⁃vironments, was separated successively by MHWST, MHW, MHWNT and MSL, and investigated in detail. As a result, the specific forams-attached sediment from each subzone on tidal surface can be recognized as a high-accuracy sea level indicator, of which the reconstructed elevation point lies in the middle of the subzone with an error of half of the vertical range. It is evident that the exis⁃tence of the local chenier body can exert an influence on the composition of foram assemblages, and such an influence tends to de⁃cline gradually from high to low water, and finally fades out seaward beneath the MHWNT.关键词
有孔虫/贝壳堤/泥质潮坪/海面指示意义/渤海湾Key words
foraminifera assemblages/chenier/muddy tidal flats/sea level indication/Bohai Bay分类
天文与地球科学引用本文复制引用
李建芬,商志文,姜兴钰,陈永胜,王福,田立柱,王宏..渤海湾沿岸贝壳堤对潮滩有孔虫海面变化指示意义的影响[J].地质通报,2016,35(10):1578-1583,6.基金项目
国家自然科学基金项目（批准号:41372173）和中国地质调查局项目 （）
