Rare earth element fingerprints in Korean coastal bay sediments: Association with provenance discrimination SCIE SCOPUS KCI

Cited 1 time in WEB OF SCIENCE Cited 1 time in Scopus
Title
Rare earth element fingerprints in Korean coastal bay sediments: Association with provenance discrimination
Author(s)
Kang, Jeongwon; Woo, Han Jun; Jang, Seok; Jeong, Kap-Sik; Jung, Hoi-Soo; Hwang, Ha Gi; Lee, Jun-Ho; Cho, Jin Hyung
KIOST Author(s)
Kang, Jeong Won(강정원)Woo, Han Jun(우한준)Jang, Seok(장석)Jeong, Kap Sik(정갑식)Jung, Hoi Soo(정회수)Lee, Jun Ho(이준호)Cho, Jin Hyung(조진형)
Alternative Author(s)
강정원; 우한준; 장석; 정갑식; 정회수; 황하기; 이준호; 조진형
Publication Year
2016-09
Abstract
Rare earth elements (REEs: La-Lu) in surface sediments collected from the mouth and middle tidal flats of Gomso Bay, South Korea, in August 2011 and May 2012 were analyzed to investigate the fine-grained sediment provenance. The upper continental crust (UCC)-normalized light REEs (LREEs: La to Nd) were more enriched than the middle REEs (MREEs: Sm to Dy) and heavy REEs (HREEs: Ho to Lu), resulting in large (La/Yb)(UCC) (1.9 +/- 0.4) to (Gd/Yb)(UCC) (1.4 +/- 0.2) ratios. The monthly (La/Yb)(UCC) values differed between the mouth and middle tidal flats due to deposition of fine-grained sediments that originated from distant rivers (the Geum and Yeongsan) and the Jujin Stream, located on the southern shore of the inner bay. We observed relative reductions in the (La/Yb)(UCC) value and REE content in the sediments from the mouth of the bay compared with those from Jujin Stream sediments. Confined to the middle tidal flat around the KH Line of Jujin Stream, the sediments, most enriched in LREEs but depleted in Eu, were distributed in August as strong Jujin Stream runs. Here, we suggest that an increase in LREE/HREE and decrease in MREE/LREE ratios can be used as a proxy to identify the Jujin Stream provenance in mixed riverine sediments and to trace Jujin Stream sediments within the Gomso Bay tidal flat, especially in the summer rainy season.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2156
DOI
10.1007/s12601-016-0027-7
Bibliographic Citation
OCEAN SCIENCE JOURNAL, v.51, no.3, pp.305 - 316, 2016
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Subject
SOUTHEASTERN YELLOW-SEA; REE GEOCHEMISTRY; GOMSO BAY; SURFACE SEDIMENTS; STREAM SEDIMENTS; FRACTIONATION; DISPERSAL; ORIGIN; RIVERS; SHELF
Keywords
rare earth elements; REE fractionation; sediment origin; tidal flat; Gomso Bay
Type
Article
Language
English
Document Type
Article
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Related Researcher
Research Interests

Marine Geology,Marine Geochemistry,Marine Security and Safety Research,해양지질,해양지화학,해양방위

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse