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A high-resolution delta O-18 record of modern Tridacna gigas bivalve and its paleoenvironmental implications

文献类型：期刊论文

作者Ma, Xiaolin1,2,3; Yan, Hong1,4,5; Fei, Haobai1; Liu, Chengcheng1,6; Shi, Ge1,6; Huang, Enqing3; Wang, Yue3; Qu, Xiaoli7; Lian, Ergang3; Dang, Haowen3
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2020-09-15
卷号554页码:13
ISSN号0031-0182
关键词LSCM Daily growth laminae ENSO Sea surface salinity South China Sea
DOI10.1016/j.palaeo.2020.109800
通讯作者Yan, Hong(yanhong@ieecas.cn)
英文摘要The lack of monthly-resolved paleoenvironmental records beyond the instrumental era hinders our full understanding of global climate dynamics. Tridacna gigas shells have a large potential to quantitatively document the variability of the ocean surface environment on time scales from daily to interannual in the past, while the applicability of the geochemical proxies of Tridacna gigas needs to be quantitively investigated. Here we establish a chronology for a Tridacna gigas shell from the southern South China Sea (SCS) by identifying daily growth laminae using a laser scanning confocal microscope (LSCM). Our high-resolution Tridacna gigas shell delta O-18(shell) record throughout 1989-2013 shows a high correlation with changes in local precipitation and the index of El Nino-Southern Oscillations (ENSO) on the interannual time scale. Together with observed sea surface temperature (SST), we calculated seawater delta O-18 (delta O-18(sw)) and derived sea surface salinity (SSS) change in the southern SCS based on the Tridacna gigas shell delta O-18 record. Our salinity-budget calculation results suggest that the SSS variability in the southern SCS is predominantly affected by the vertical mixing and sea surface freshwater flux. Our study reveals that the Tridacna gigas shell is an ideal archive for high-resolution and quantitative paleoenvironmental reconstructions in tropical ocean regions, thus providing a new window to explore paleoenvironmental changes on annual and interannual time scales.
WOS关键词SOUTH CHINA SEA ; STABLE-ISOTOPES ; OXYGEN ISOTOPES ; TEMPERATURE ; ENSO ; CLIMATE ; VARIABILITY ; OCEAN ; WATER ; RECONSTRUCTION
资助项目NSFC[41706071] ; NSFC[41877399] ; Chinese Academy of Sciences[QYZDB-SSW-DQC001] ; Qingdao National Laboratory for Marine Science and Technology of China[QNLM2016ORP0202] ; China Postdoctoral Science Foundation[2017M610660] ; State Key Laboratory of Marine Geology, Tongji University[MGK1806]
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
出版者ELSEVIER
WOS记录号WOS:000552137300011
资助机构NSFC ; Chinese Academy of Sciences ; Qingdao National Laboratory for Marine Science and Technology of China ; China Postdoctoral Science Foundation ; State Key Laboratory of Marine Geology, Tongji University
源URL[http://ir.ieecas.cn/handle/361006/15083]  
专题地球环境研究所_古环境研究室
第四纪科学与全球变化卓越创新中心
通讯作者Yan, Hong
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China
5.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
7.Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Xiaolin,Yan, Hong,Fei, Haobai,et al. A high-resolution delta O-18 record of modern Tridacna gigas bivalve and its paleoenvironmental implications[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,554:13.
APA Ma, Xiaolin.,Yan, Hong.,Fei, Haobai.,Liu, Chengcheng.,Shi, Ge.,...&Dang, Haowen.(2020).A high-resolution delta O-18 record of modern Tridacna gigas bivalve and its paleoenvironmental implications.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,554,13.
MLA Ma, Xiaolin,et al."A high-resolution delta O-18 record of modern Tridacna gigas bivalve and its paleoenvironmental implications".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 554(2020):13.

入库方式： OAI收割

来源：地球环境研究所

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