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Geochemistry characteristics of REY-rich sediment from deep sea in Western Pacific, and their indicative significance
Deng YiNan1,2; Ren JiangBo1,2; Guo QingJun3; Cao Jun1,2; Wang HaiFeng1,2; Liu ChenHui4
2018
Source PublicationACTA PETROLOGICA SINICA
ISSN1000-0569
Volume34Issue:3Pages:733-747
Corresponding AuthorGuo QingJun(guoqj@igsnrr.ac.cn)
AbstractThe REY-rich sediment from deep sea is a strategic resource. In order to determine geochemistry characteristic, origins and enrichment mechanism of REY-rich sediment, seawater and sediment samples were systematically collected from Western Pacific. We analyzed the major element, trace element and REY in sediment, as well as, REY in seawater. The redox condition, transfer and fractionation of REY and REY cycle of marine are used to analysis the origin of rare earth elements. The results indicated that, REY and Ce/Ce* show a negative correlation, and, biogenic P and Ca play a key role in REY-rich sediment. Systematic variations of Th/U, V/Sc, (La/Yb)(N), ( La/Sm)(N) and ( Sm/Yb)(N) values indicated oxic/dyoxic condition in sediment. The REE pattern showed HREE enrichment in bottom seawater, LREE and MREE enrichment in water-sediment interface, as well as, MREE and HREE enrichment in lower layer sediment. We suggested that, REY in sediment might come from seawater, and REY enrichment and negative anomalies of Ce was closely related with biological matter. The extensive oxic/dyoxic condition and biogenic oxide with relatively strong adsorption capacity resulted in few diffusion of sediment flux and enrichment of REY.
KeywordREY-rich sediment Major and trace element REY fractionation and enrichment Western Pacific
WOS KeywordRARE-EARTH-ELEMENTS ; PORE WATERS ; SOUTH CHINA ; MARINE-SEDIMENTS ; OCEANIC ANOXIA ; NATURAL-WATERS ; TRACE ; SEAWATER ; RIVER ; MN
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000431890500013
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/55050
Collection中国科学院地理科学与资源研究所
Corresponding AuthorGuo QingJun
Affiliation1.Minist Land & Resources, Key Lab Marine Mineral Resources, Guangzhou 510075, Guangdong, Peoples R China
2.Guangzhou Marine Geol Survey, Guangzhou 510075, Guangdong, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Deng YiNan,Ren JiangBo,Guo QingJun,et al. Geochemistry characteristics of REY-rich sediment from deep sea in Western Pacific, and their indicative significance[J]. ACTA PETROLOGICA SINICA,2018,34(3):733-747.
APA Deng YiNan,Ren JiangBo,Guo QingJun,Cao Jun,Wang HaiFeng,&Liu ChenHui.(2018).Geochemistry characteristics of REY-rich sediment from deep sea in Western Pacific, and their indicative significance.ACTA PETROLOGICA SINICA,34(3),733-747.
MLA Deng YiNan,et al."Geochemistry characteristics of REY-rich sediment from deep sea in Western Pacific, and their indicative significance".ACTA PETROLOGICA SINICA 34.3(2018):733-747.
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