|Table of Contents|

REE Characteristics of the Surface Sediments in the Lower Reaches of Lishui River, Hunan, China(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2019年第03期
Page:
352-361
Research Field:
水资源与环境
Publishing date:

Info

Title:
REE Characteristics of the Surface Sediments in the Lower Reaches of Lishui River, Hunan, China
Author(s):
MAO Long-jiang12 GUO Ai-peng2 DU Ji-jing1 GUO Yuan-yuan3 LI Xiang2 WU You-jin2
(1. School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, Jiangsu, China; 2. Institute for History of Science and Technology, Nanjing University of Information Science and Technology, Nanjing 210044, Jiangsu, China; 3. College of Resources and Environment, Linyi University, Linyi 276000, Shandong, China)
Keywords:
rare earth element geochemistry surface sediment sedimentary environment source Lishui river Hunan
PACS:
P736.21
DOI:
-
Abstract:
The geochemical contents and compositions of rare earth element(REE)from 21 samples of the surface sediments in the lower reaches of Lishui river, Hunan, were analyzed for source tracing. The results show that the total contents of REE vary in the range of(109.12-192.27)×10-6 with an average of 148.37×10-6; compared with the background value of soil in Hunan, the contents of the surface sediments in the lower reaches of Lishui river are at a slightly low level; the variation trend of REE contents from 21 samples is highly consistent, and there is little change in compositions of REE; the characteristics of REE show that LREEs are relatively abundant, and HREEs are relatively depleted with moderate negative Eu anomalies and weak negative Ce anomalies; the total contents of REE and their characteristic parameters are close to the background values of sediments in Yangtze River and soil in Hunan, and upper continental crust-normalized and chondrite-normalized REE patterns are similar to that of sediments in Yangtze River, indicating that the source of the surface sediments in the lower reaches of Lishui river mainly comes from weathered materials of Lishui river catchment, followed by sediments in Yangtze River brought by three Jingjiang flood discharges including Songzikou, Taipingkou and Ouchikou.

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Last Update: 2019-05-20