威海湾表层沉积物地球化学特征及影响因素分析
Geochemical Characteristics and Influencing Factors of Surface Sediments in Weihai Bay
袁星芳 1李恒猛 2常宝坤 1王嫚 1刘成儒 2战蓉蓉 1李方舟1
作者信息
- 1. 山东省第六地质矿产勘查院,山东 威海 264209
- 2. 山东省宏发化工工程有限公司,山东 济南 250100
- 折叠
摘要
本文系统分析了威海湾海域表层沉积物地球化学特征,结果表明:沉积物中常量组分含量整体呈西南低、东北高的趋势,与平均粒径呈负相关关系,元素丰度呈接近状态.沉积物中微量元素含量整体呈西高东低的态势,与平均粒径呈正相关关系,元素丰度呈富集状态.通过计算富集系数、污染因子,认为表层沉积物含量与沉积物粒径、入海碎屑物、人类工程活动等息息有关.
Abstract
Geochemical composition of surface sediments is restricted by material source,grain size and sed-imentary environment.It has a great significance for understanding sediment source-sink processes and paleoenvironmental evolution.In this paper,geochemical characteristics of surface sediments in Weihai bay have been systematically analyzed.It is showed that the content of major components in sediments is lower in southwest and higher in northeast.It is negatively correlated with the average particle size,and the ele-ment abundance is close.The content of trace elements in sediments is higher in the west and lower in the east.It is positively correlated with the average particle size,and the element abundance is enriched.In ad-dition,by calculating the enrichment coefficient and pollution factors,it is found that the sediment content is related to the sediment particle size,detritus into the sea,human engineering activities and so on.
关键词
表层沉积物/分布特征/影响因素/威海湾Key words
Surface sediments/distribution characteristics/influencing factors/Weihai bay引用本文复制引用
基金项目
山东省地质勘查项目(鲁勘字[2021]54号)
出版年
2024
国家科技期刊平台
NSTL
万方数据