IOCAS-IR  > 海洋地质与环境重点实验室
Geochemical Constrains on MORB Composition and Magma Sources at East Pacific Rise Between 1A degrees S and 2A degrees S
Zhang, Wei1; Zeng, Zhigang1; Cui, Lukai2; Yin, Xuebo1
2018-04-01
Source PublicationJOURNAL OF OCEAN UNIVERSITY OF CHINA
ISSN1672-5182
Volume17Issue:2Pages:297-304
Corresponding AuthorZhang, Wei(zhangwei@qdio.ac.cn)
AbstractThe East Pacific Rise (EPR) is a typical fast spreading ridge. To gain a better understanding of the magmatism under ridges, Mid Ocean Ridge Basalts (MORBs) with remarkably heterogeneous compositions are obtained from (EPR) 1A degrees-2A degrees S and multielement geochemical and radioisotope analyses are conducted. Results show that these MORBs have wide variation ranges in trace element concentrations and isotopic ratios. Sample 07 has low concentrations of incompatible elements, and very low Sr-87/Sr-86, and high Nd-143/Nd-144 from 0.70213 to 0.702289 and 0.513234 to 0.513289, respectively. However, other samples show enrichment in incompatible elements to varying degrees, and medium values of Sr-87/Sr-86 and Nd-143/Nd-144 from 0.702440 to 0.702680 and 0.513086 to 0.513200, respectively. This study proposes that one depleted source and two enriched sources contribute to the formation of MORBs from EPR 1A degrees-2A degrees S. Samples 02 and 10 are formed by mixing between one enriched source and one depleted source, while sample 07 is crystallized from the depleted source with no mixing process involved. However, the formation of samples 06 and 11 are different, and thus further research is required to determine genesis.
KeywordEast Pacific Rise EPR 1 degrees-2 degrees S mid ocean ridge basalts
DOI10.1007/s11802-018-3223-5
Indexed BySCI
Language英语
Funding ProjectSpecial and Frontier Foundation for the Twelve Five Plan of the China Ocean Mineral Resources Research and Development Association[DY125-22-QY-21] ; Special and Frontier Foundation for the Twelve Five Plan of the China Ocean Mineral Resources Research and Development Association[DY125-12-R-02]
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000427906900009
PublisherOCEAN UNIV CHINA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/158355
Collection海洋地质与环境重点实验室
Corresponding AuthorZhang, Wei
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.East China Inst Technol, Coll Earth Sci, Nanchang 330013, Jiangxi, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang, Wei,Zeng, Zhigang,Cui, Lukai,et al. Geochemical Constrains on MORB Composition and Magma Sources at East Pacific Rise Between 1A degrees S and 2A degrees S[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2018,17(2):297-304.
APA Zhang, Wei,Zeng, Zhigang,Cui, Lukai,&Yin, Xuebo.(2018).Geochemical Constrains on MORB Composition and Magma Sources at East Pacific Rise Between 1A degrees S and 2A degrees S.JOURNAL OF OCEAN UNIVERSITY OF CHINA,17(2),297-304.
MLA Zhang, Wei,et al."Geochemical Constrains on MORB Composition and Magma Sources at East Pacific Rise Between 1A degrees S and 2A degrees S".JOURNAL OF OCEAN UNIVERSITY OF CHINA 17.2(2018):297-304.
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