Disentangling Effects of Sea Surface Temperature and Water Depth on Hydroxylated Isoprenoid GDGTs: Insights From the Hadal Zone and Global Sediments
|Corresponding Author||Xiao，Wenjie; Zhang，Chuanlun|
Hydroxylated isoprenoid glycerol dialkyl glycerol tetraethers (OH-GDGTs) preserved in marine sediments are thought to be controlled by sea surface temperature (SST). However, water depth may also exert a significant influence on OH-GDGTs. Here, we investigated sedimentary OH-GDGTs in the Kermadec and Atacama trench regions (2,560–9,560 m water depth). Sedimentary OH-GDGTs in hadal trenches were dominated by OH-GDGT-0 (72 ± 8%), potentially reflecting an adaption of source organisms to ambient cold deep water. This result, combined with global data set, revealed that the predominance of OH-GDGT-0 is a ubiquitous phenomenon in deep-sea sediments, leading to a considerable underestimation of RI-OH′-derived SSTs. By considering both SST and water depth effects, we developed more accurate OH-GDGT-based paleothermometers for both shallow regions and the global ocean, encompassing the full-ocean-depth range. Our findings highlight the importance of accounting for the effect of water depth on OH-GDGTs and provide improved tools for reconstructing paleo-SSTs.
NI Journal Papers
First ; Corresponding
National Natural Science Foundation of China;National Natural Science Foundation of China;National Natural Science Foundation of China;National Institute of Water and Atmospheric Research[TAN1711];
|ESI Research Field|
Cited Times [WOS]:0
|Document Type||Journal Article|
|Department||Department of Ocean Science and Engineering|
1.Shenzhen Key Laboratory of Marine Archaea Geo-Omics,Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,China
2.Department of Biology,HADAL,Nordcee & DIAS,University of Southern Denmark,Odense M,Denmark
3.Shanghai Frontiers Research Center of the Hadal Biosphere & HAST,College of Marine Sciences,Shanghai Ocean University,Shanghai,China
4.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou),Guangzhou,China
5.Shanghai Sheshan National Geophysical Observatory,Shanghai,China
6.Key Laboratory of Ocean and Marginal Sea Geology,Chinese Academy of Sciences,Guangzhou,China
7.Hubei Key Laboratory of Marine Geological Resource,China University of Geosciences,Wuhan,China
8.Department of Earth Sciences,ETH Zurich,Zurich,Switzerland
9.HGF-MPG Group for Deep Sea Ecology & Technology,Alfred Wegener Institute Helmholtz Centre for Polar- and Marine Research,Bremerhaven,Germany
10.Max Planck Institute for Marine Microbiology,Bremen,Germany
11.Coast and Oceans National Centre,National Institute of Water & Atmosphere Research (NIWA) Ltd,Wellington,New Zealand
12.School of Biological Sciences,Victoria University of Wellington,Wellington,New Zealand
13.Department of Ocean and Environmental Sciences,Tokyo University of Marine Science and Technology,Tokyo,Japan
|First Author Affilication||Department of Ocean Science and Engineering|
|Corresponding Author Affilication||Department of Ocean Science and Engineering|
|First Author's First Affilication||Department of Ocean Science and Engineering|
Xiao，Wenjie,Xu，Yunping,Zhang，Chuanlun,et al. Disentangling Effects of Sea Surface Temperature and Water Depth on Hydroxylated Isoprenoid GDGTs: Insights From the Hadal Zone and Global Sediments[J]. Geophysical Research Letters,2023,50(15).
Xiao，Wenjie.,Xu，Yunping.,Zhang，Chuanlun.,Lin，Jian.,Wu，Weichao.,...&Glud，Ronnie N..(2023).Disentangling Effects of Sea Surface Temperature and Water Depth on Hydroxylated Isoprenoid GDGTs: Insights From the Hadal Zone and Global Sediments.Geophysical Research Letters,50(15).
Xiao，Wenjie,et al."Disentangling Effects of Sea Surface Temperature and Water Depth on Hydroxylated Isoprenoid GDGTs: Insights From the Hadal Zone and Global Sediments".Geophysical Research Letters 50.15(2023).
|Files in This Item:||There are no files associated with this item.|
|Recommend this item|
|Export to Endnote|
|Export to Excel|
|Export to Csv|
|Similar articles in Google Scholar|
|Similar articles in Baidu Scholar|
|Similar articles in Bing Scholar|
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.