天津科技大学学报2017，Vol.32Issue(3)：50-57,8.DOI:10.13364/j.issn.1672-6510.20160305
渤海湾西部海域底质特征及其沉积环境分析
Characteristics of Western Bohai Bay Sea Bottom Sediment:Sedimentary Environment Analysis
摘要
Abstract
The grain size of the 39 surface sediment samples taken from the Western Bohai Bay are studied for sediment types and the distribution patterns of grain size parameters.By using the method of Flemming triangular diagram,the sedi-mentary environment of surface sediments in the area is analyzed.By studying the grain size parameter vector,the transport trend is explored.Combined with the characteristics of clay minerals,the material source of the sediment is analyzed.The results show that there are mainly sandy silt,silty sand,sandy mud and mud in the studied area.The Φ value of the mean grain size is 6.36-7.57,and sorting is poor in the whole area.Compared with the characteristics of clay minerals in several rivers of the studied area,the projection of samples is basically the same as that in Haihe River and Jiyunhe River which belongs to the type of sediment of Haihe River.Relatively weak depositional dynamics in the area is detected with Flemming triangular diagram method,and the Gao-Collins "trend analysis" indicates that the net transport direction of the seabed sedi-ment is toword the center of the bay.关键词
表层沉积物/粒度/沉积环境/趋势分析/渤海湾西部Key words
surface sediment/grain size/depositional environment/trend analysis/Western Bohai Bay分类
海洋科学引用本文复制引用
宫少军,赵卫,乔吉果,王飞飞,李稳..渤海湾西部海域底质特征及其沉积环境分析[J].天津科技大学学报,2017,32(3):50-57,8.基金项目
"天津市滨海新区近海海洋地质环境调查与评价"项目(国土房任[2013]17号) （国土房任[2013]17号）
"天津港以南海域全新世以来沉积记录研究"项目(国土房任[2016]12号) （国土房任[2016]12号）
