期刊论文

GEOCHEMISTRY OF MAJOR ELEMENTS IN BED SEDIMENTS FROM INLETS OF THE FOUR RIVERS TO DONGTING LAKE, CHINA

中文

第四纪研究

1001-7410

2021

41

05

1267-1280

10.11928/j.issn.1001-7410.2021.05.04

湖南省地理学一流学科（地理学-5010002）建设项目； 湖南省高校科技创新团队支持计划项目（2014）； 国家自然科学基金项目（批准号:41073095）共同资助；

本校为其他机构

本研究利用X射线荧光分析仪(XRF)对洞庭湖\"四水\"(湘江、资江、沅江、澧水)入湖河床沉积物进行主量元素地球化学分析,探讨\"四水\"入湖沉积物主量元素组成特征及其影响因素。结果表明,洞庭湖\"四水\"入湖沉积物中SiO_(2)、Al_(2)O_(3)、Fe_(2)O_(3)、K_(2)O、P_(2)O_(5)、LOI等元素含量变化相对较小、分布特征相似;而MnO、MgO、CaO、Na2O等则含量变化较大,在各河流沉积物中分布差异明显。其中沅江和澧水入湖沉积物中MgO、CaO、Na2O等的含量明显高于湘江和资江沉积物,而MnO则反之;澧水沉积物TiO_(2)含量明显偏高。且湘江、资江、澧水沉积物中TiO_(2)、Al_(2)O_(3)、Fe_(2)O_(3)、MnO、MgO、CaO、...

The concentrations of major elements in bed sediments from inlets of the Four Rivers (Xiangjiang, Zijiang, Yuanjiang, and Lishui rivers) to Dongting Lake were measured using the X-ray fluorescence (XRF) technique, with purposes to characterizing the chemical compositions of the sediments and to understanding the possible factors that impact directly on the chemical composition of the sediments. The results show that the concentrations of major elements SiO_2,Al_2O_3, Fe_2O_3, K_2O, P_2O_5 and LOI are less variable, and they show similar distribution patterns in sediments of the Four River inle...