海洋地质与第四纪地质2017，Vol.37Issue(3)：75-85,11.DOI:10.16562/j.cnki.0256-1492.2017.03.008
渤海西部表层沉积物的地球化学记录
GEOCHMICAL RECORDS OF SURFACE SEDIMENTS IN THE WESTERN BOHAI SEA
摘要
Abstract
Based on the concentrations of chemical components SiO2,Al2O3,TFe2O3,CaO,MgO,Na2O,K2O,TiO2,P2O5,MnO,Li,V,Sb,Nb,Ta、Zr,Corg,LOI,TN and TC in surface sediment samples taken from 44 stations in the west part of the Bohai Sea,the distribution pattern and material sources of the chemical components are studied.The chemical components of Al2O3,MgO,TFe2O3,K2O,Corg,TN,Li,V and Sb are positively correlated with the fine-grained sediments,while SiO2 is positively correlated with coarse-grained sediments;there are no significant positive or negative correlations between Na2O,CaO and Ta and grain sizes of sediments.R-mode cluster analysis indicates three types of combinations that are represented by Li,CaO and TC,respectively,reflecting the input of terrigenous fine-grained material,the impact of the Yellow River,and the substances from both Yellow and Haihe Rivers,respectively.Combined with scatter diagrams of CaO/Al2O3 vs.K2O/Al2O3,Zr/Al2O3 vs.CaO /Al2O3,the Q-mode cluster analysis is drawn to reveal the source of sediments in the west part of the Bohai Sea.The results suggest that the sediments of the study area mainly come from the Yellow River and Haihe River,and the sediments in the northeast part of the study area are apparently influenced by the materials from the Luanhe River.关键词
化学组分/地球化学/表层沉积物/物源/渤海西部Key words
chemical components/geochemistry/sediments/provenance/western Bohai Sea分类
海洋科学引用本文复制引用
蓝先洪,李日辉,王中波,陈晓辉,顾兆峰,徐晓达..渤海西部表层沉积物的地球化学记录[J].海洋地质与第四纪地质,2017,37(3):75-85,11.基金项目
国土资源部海洋区域地质调查项目(1212011220113,GZH201400205,GZH201400201,GZH20150201,DD20160137) （1212011220113,GZH201400205,GZH201400201,GZH20150201,DD20160137）
国家自然科学基金项目(41330964,41406077) （41330964,41406077）
