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In situ Strontium isotope stratigraphy of fish teeth in deep-sea sediments from the western Clarion-Clipperton Fracture Zone, eastern Pacific Ocean

文献类型：期刊论文

作者Wang, Tianyi4,5,6; Dong, Yanhui5,6; Chu, Fengyou5,6; Zhang, Wen3; Li, Xiaohu5,6; Su, Rong2; Tian, Liyan1
刊名CHEMICAL GEOLOGY
出版日期2023-10-05
卷号636页码:11
ISSN号0009-2541
关键词REY-rich sediment Sr isotope stratigraphy Fish teeth Clarion -Clipperton Fracture Zone
DOI10.1016/j.chemgeo.2023.121624
通讯作者Dong, Yanhui(dongyh@sio.org.cn) ; Chu, Fengyou(chu@sio.org.cn)
英文摘要The geochronology of deep-sea sediments beneath the carbonate compensation depth (CCD) presents a challenge due to the calcareous microfossils dissolution, low sedimentation rates, sedimentary hiatus, and redeposition. Fish teeth, commonly found in deep-sea sediments, have been utilized for Sr isotope stratigraphic dating. However, continuous Sr isotope exchange with pore water limits the utility of fish teeth in this context.In this study, we employed laser ablation multi-collector inductively coupled plasma mass spectrometry (LAMC-ICPMS), scanning electron microscopy (SEM), and laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) to obtain accurate stratigraphic chronology results from rare earth element and yttrium (REY)-rich sediments in the Clarion-Clipperton Fracture Zone (CCFZ) of the Pacific Ocean.Our analysis indicated that a fish tooth characterized by a dense structure and low La content exhibited a relatively initial 87Sr/86Sr ratio. Additionally, La contents at the same depth displayed a strong positive correlation with 87Sr/86Sr ratios, suggesting that Sr isotopes exchange with pore water during early diagenesis when La and other elements entered the fish teeth. However, certain fish teeth were able to resist early diagenesis alteration due to their dense structure.Based on in situ Sr-isotope stratigraphy results, we estimated the REY-rich layer age in core GC1901 to be 24-32 Ma, consistent with the REY-rich layers of DSDP/ODP in the CCFZ. Our study thus provides a new method for in situ Sr isotope analysis of fish teeth, which improves the accuracy of Sr isotope stratigraphy of pelagic sediments and could be widely used in deep-sea exploration.
WOS关键词RARE-EARTH-ELEMENTS ; LA-ICP-MS ; REY-RICH MUD ; TRACE-ELEMENTS ; SEAWATER SR ; ND ISOTOPES ; BAD-NEWS ; MARINE ; CARBONATE ; RECORD
资助项目National Natural Science Foundation of China[U2244222] ; Basic Commonwealth Research Programs of Zhejiang Province[LGF22D06004] ; NSFC Major Research Plan on West-Pacific Earth System Multispheric Interactions[91958212] ; Natural Science Foundation of Zhejiang Province[LY20D060005] ; 13th Five Year Plan Project of International Maritime Resources Investigation and Development[DY135-N1-1-01] ; 13th Five Year Plan Project of International Maritime Resources Investigation and Development[DY135-G2-1-03] ; 13th Five Year Plan Project of International Maritime Resources Investigation and Development[DY135-C1-1-06] ; National Natural Science Foundation[41876044]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者ELSEVIER
WOS记录号WOS:001044317800001
资助机构National Natural Science Foundation of China ; Basic Commonwealth Research Programs of Zhejiang Province ; NSFC Major Research Plan on West-Pacific Earth System Multispheric Interactions ; Natural Science Foundation of Zhejiang Province ; 13th Five Year Plan Project of International Maritime Resources Investigation and Development ; National Natural Science Foundation
源URL[http://ir.idsse.ac.cn/handle/183446/10429]  
专题深海科学研究部_深海地质与地球化学研究室
通讯作者Dong, Yanhui; Chu, Fengyou
作者单位1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
2.Jilin Univ, Coll Earth Sci, Changchun 130000, Peoples R China
3.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
4.Peking Univ, Inst Energy, Beijing 100871, Peoples R China
5.Minist Nat Resources, Key Lab Submarine Geosci, Hangzhou 310012, Peoples R China
6.Minist Nat Resources, Inst Oceanog 2, Hangzhou 310012, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Tianyi,Dong, Yanhui,Chu, Fengyou,et al. In situ Strontium isotope stratigraphy of fish teeth in deep-sea sediments from the western Clarion-Clipperton Fracture Zone, eastern Pacific Ocean[J]. CHEMICAL GEOLOGY,2023,636:11.
APA Wang, Tianyi.,Dong, Yanhui.,Chu, Fengyou.,Zhang, Wen.,Li, Xiaohu.,...&Tian, Liyan.(2023).In situ Strontium isotope stratigraphy of fish teeth in deep-sea sediments from the western Clarion-Clipperton Fracture Zone, eastern Pacific Ocean.CHEMICAL GEOLOGY,636,11.
MLA Wang, Tianyi,et al."In situ Strontium isotope stratigraphy of fish teeth in deep-sea sediments from the western Clarion-Clipperton Fracture Zone, eastern Pacific Ocean".CHEMICAL GEOLOGY 636(2023):11.

入库方式： OAI收割

来源：深海科学与工程研究所

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