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Impact of water depth on the distribution of iGDGTs in the surface sediments from the northern South China Sea: applicability of TEX86 in marginal seas
Chen, Jiali1,2,5; Hu, Pengju1,2; Li, Xing1,3; Yang, Yang1; Song, Jinming4; Li, Xuegang4; Yuan, Huamao4; Li, Ning4; Lu, Xiaoxia1,3
2018-03-01
Source PublicationFRONTIERS OF EARTH SCIENCE
Volume12Issue:1Pages:95-107
SubtypeArticle
AbstractThe TEX (86) (H) paleothermometer on the base of isoprenoid glycerol dialkyl glycerol tetraethers (iGDGTs) has been widely applied to various marine settings to reconstruct past sea surface temperatures (SSTs). However, it remains uncertain how well this proxy reconstructs SSTs in marginal seas. In this study, we analyze the environmental factors governing distribution of iGDGTs in surface sediments to assess the applicability of TEX (86) (H) paleothermometer in the South China Sea (SCS). Individual iGDGT concentrations increase gradually eastwards. Redundancy analysis based on the relative abundance of an individual iGDGT compound and environmental parameters suggests that water depth is the most influential factor to the distribution of iGDGTs, because thaumarchaeota communities are water-depth dependent. Interestingly, the SST difference (Delta T) between TEX (86) (H) derived temperature and remote-sensing SST is less than 1A degrees C in sediments with water depth > 200 m, indicating that TEX (86) (H) was the robust proxy to trace the paleo-SST in the region if water depth is greater than 200 m.
KeywordIgdgts Distribution South China Sea (Scs) Sea Surface Temperature Water Depth
DOI10.1007/s11707-016-0620-1
Indexed BySCI
Language英语
WOS IDWOS:000425157200009
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Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/154357
Collection海洋生态与环境科学重点实验室
Affiliation1.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
2.China Univ Geosci, Fac Earth Sci, Wuhan 430074, Peoples R China
3.China Univ Geosci, Coll Marine Sci & Technol, Wuhan 430074, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
5.5 Middle Sch Nan Chang, Nanchang 330029, Jiangxi, Peoples R China
Recommended Citation
GB/T 7714
Chen, Jiali,Hu, Pengju,Li, Xing,et al. Impact of water depth on the distribution of iGDGTs in the surface sediments from the northern South China Sea: applicability of TEX86 in marginal seas[J]. FRONTIERS OF EARTH SCIENCE,2018,12(1):95-107.
APA Chen, Jiali.,Hu, Pengju.,Li, Xing.,Yang, Yang.,Song, Jinming.,...&Lu, Xiaoxia.(2018).Impact of water depth on the distribution of iGDGTs in the surface sediments from the northern South China Sea: applicability of TEX86 in marginal seas.FRONTIERS OF EARTH SCIENCE,12(1),95-107.
MLA Chen, Jiali,et al."Impact of water depth on the distribution of iGDGTs in the surface sediments from the northern South China Sea: applicability of TEX86 in marginal seas".FRONTIERS OF EARTH SCIENCE 12.1(2018):95-107.
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