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Glycerol dialkyl glycerol tetraethers signature in sediments of the East China Sea and its implication on marine and continental climate and environment records
Duan, Liqin1,2,3,4; Song, Jinming1,2,3,4; Li, Xuegang1,2,3,4; Yuan, Huamao1,2,3,4
2019-08-01
Source PublicationECOLOGICAL INDICATORS
ISSN1470-160X
Volume103Pages:509-519
Corresponding AuthorDuan, Liqin(duanliqin@qdio.ac.cn) ; Song, Jinming(jmsong@qdio.ac.cn)
AbstractGlycerol dialkyl glycerol tetraethers (GDGTs) were determined in surface sediments from the East China Sea (ECS) in order to evaluate their potential for palaeo-climate and environmental reconstructions. Isoprenoid GDGTs (isoGDGTs) ranged from 516.75 ng/g to 1365 ng/g and crenarchaeol (cren) and caldarchaeol (GDGT-0) were the main components. IsoGDGTs were mainly derived from marine planktonic Thaumarchaeota. Branched GDGTs (brGDGTs) ranged from 12.3 ng/g to 123.5 ng/g and were dominated by GDGT-I and GDGT-II. The fractions and distributions, combined with branched/isoprenoid tetraether index (BIT) and methylation and cyclization indexes of brGDGT (MBT-CBT) suggested that brGDGTs in the ECS were mainly derived from terrestrial soils and they could be used to reconstruct climates. The TEX86-derived sea surface temperatures (SST) were close to the satellite-derived SST in autumn. The MBT/CBT-derived mean annual air temperatures (MAATs) and CBT-derived pH values in inner shelf by local and global calibrations matched well with the measured MAATs and soil pH in the lower Changjiang River basin, which seem to be appropriate for palaeo-climate and environment reconstructions of the continent around the ECS. Besides, cren and methane index showed a sensitive response to dissolved oxygen variation, suggesting their potential as palaeo-redox proxy.
KeywordGDGTs Source Implication proxy Environment record East China Sea
DOI10.1016/j.ecolind.2019.04.040
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41676068] ; National Natural Science Foundation of China-Shandong Joint Fund[U1606404] ; Youth Innovation Promotion Association CAS[2016191] ; Foundation for Huiquan Young Scholar of Institute of Oceanology, Chinese Academy of Sciences
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Environmental Sciences
WOS IDWOS:000470965300048
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/161614
Collection海洋生态与环境科学重点实验室
Corresponding AuthorDuan, Liqin; Song, Jinming
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Shandong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
First Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS
Corresponding Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS
Recommended Citation
GB/T 7714
Duan, Liqin,Song, Jinming,Li, Xuegang,et al. Glycerol dialkyl glycerol tetraethers signature in sediments of the East China Sea and its implication on marine and continental climate and environment records[J]. ECOLOGICAL INDICATORS,2019,103:509-519.
APA Duan, Liqin,Song, Jinming,Li, Xuegang,&Yuan, Huamao.(2019).Glycerol dialkyl glycerol tetraethers signature in sediments of the East China Sea and its implication on marine and continental climate and environment records.ECOLOGICAL INDICATORS,103,509-519.
MLA Duan, Liqin,et al."Glycerol dialkyl glycerol tetraethers signature in sediments of the East China Sea and its implication on marine and continental climate and environment records".ECOLOGICAL INDICATORS 103(2019):509-519.
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