Results 81 to 90 of about 1,604 (171)

Seasonal Changes in Marine Archaeal Tetraether Lipid Export Depth Linked to Net Primary Productivity

Paleoceanography and Paleoclimatology, Volume 41, Issue 2, February 2026.
Abstract Marine ammonia oxidizing archaea (AOA) produce isoprenoid glycerol dibiphytanyl glycerol tetraethers (GDGTs) which form the basis of seawater temperature proxy TEX86. Although most studies use TEX86 for sea surface temperature (SST) reconstructions, maximum GDGT production occurs at and below the nitracline. Moreover, sedimentary GDGT‐2/GDGT‐3
Addison Rice, Eunmi Park, Gesine Mollenhauer, Daisy Bouwmans, Anouk van Boxtel, Gert J. de Lange, Ryan Paul, Francesca Sangiorgi, Ryan Smulders, Jan‐Berend Stuut, Martin Ziegler, Appy Sluijs, Francien Peterse   +12 more
wiley   +1 more source

Evaluating Production of Cyclopentyl Tetraethers by Marine Group II Euryarchaeota in the Pearl River Estuary and Coastal South China Sea: Potential Impact on the TEX86 Paleothermometer

Frontiers in Microbiology, 2017
TEX86 [TetraEther indeX of glycerol dialkyl glycerol tetraethers (GDGTs) with 86 carbon atoms] has been widely applied to reconstruct (paleo-) sea surface temperature.
Jin-Xiang Wang, Jin-Xiang Wang, Wei Xie, Yi Ge Zhang, Travis B. Meador, Chuanlun L. Zhang, Chuanlun L. Zhang   +6 more
doaj   +1 more source

Evaluating the Reliability of Grain‐Size Sorting for Organic Biomarker Analysis

Paleoceanography and Paleoclimatology, Volume 41, Issue 2, February 2026.
Abstract Organic and inorganic geochemical proxies are fundamental for interpreting past climate variability. For inorganic analysis, marine sediments are often size fractionated to isolate foraminifera, while organic analysis employs subsamples of bulk sediment.
J. S. Hingley, P. S. Bray, T. Agterhuis, G. L. Foster, B. S. Wade, J. H. Whiteside, G. N. Inglis   +6 more
wiley   +1 more source

Grain Size Associations of Branched Tetraether Lipids in Soils and Riverbank Sediments: Influence of Hydrodynamic Sorting Processes

Frontiers in Earth Science, 2017
We analyzed the abundance and distribution of branched glycerol dialkyl glycerol tetraethers (brGDGTs) in grain size fractions of 7 globally distributed river flank sediments and catchment soils in order to determine if and how the initial soil-brGDGT ...
Francien Peterse, Francien Peterse, Timothy I. Eglinton   +2 more
doaj   +1 more source

Sea Surface Temperature and Salinity Changes in the Easternmost Mediterranean During the Pre‐Evaporitic Messinian Controlled by the Restriction at Gibraltar

Paleoceanography and Paleoclimatology, Volume 41, Issue 1, January 2026.
Abstract During the latest Miocene, the Mediterranean Basin was affected by extreme paleoceanographic and paleoenvironmental changes culminating with evaporite (gypsum and halite) formation during the Messinian Salinity Crisis (MSC: 5.97–5.33 Ma).
F. Lanterna, W. Krijgsman, L. Lourens, A. Mulch, I. Vasiliev   +4 more
wiley   +1 more source

GDGT data in Siberian permafrost deposits

, 2021
Core lipid GDGT distributions were studied in different North Siberian permafrost deposits to study GDGT diversity and underlying environmental controls.
Kusch, Stephanie
core   +1 more source

(Tabel S2) GDGT fractional abundances and calculated metrics from the Congo River

, 2017
(Tabel S2) GDGT fractional abundances and calculated metrics from the Congo ...
Spencer, Robert GM, Hemingway, Jordon D, Galy, Valier V, Cameron McIntyre (6961925), Schefuß, Enno, Timothy Ian Eglinton (6957896), Eglinton, Timothy Ian, Dinga, Bienvenu Jean, Enno Schefuß (6886100), McIntyre, Cameron, Valier V Galy (6961928), Robert GM Spencer (6961919), Bienvenu Jean Dinga (6961922), Jordon D Hemingway (6961916)   +13 more
core   +1 more source

Crenarchaeol

Journal of Lipid Research, 2002
The basic structure and stereochemistry of the characteristic glycerol dibiphytanyl glycerol tetraether (GDGT) membrane lipid of cosmopolitan pelagic crenarchaeota has been identified by high field two-dimensional (2D)-NMR techniques.
Jaap S.Sinninghe Damsté, Stefan Schouten, Ellen C. Hopmans, Adri C.T. van Duin, Jan A.J. Geenevasen   +4 more
doaj   +1 more source

GDGT lipid counts from IODP Exp. 342 Sites U1405, U1406, U1407, U1409, and U1410 over the Cenozoic

Dataset reporting Glycerol dialkyl glycerol tetraether (GDGT) lipid counts of 36 sediment samples from IODP Expedition 342 Sites U1405, U1406, U1407, U1409, and U1410 in the Northwest Atlantic (including five samples with three repeat measurements each).
Pälike, Heiko, Quabeck, Jakob
core   +1 more source

(Table 2) GDGT concentrations in SPM samples of the Amazon basin

, 2013
(Table 2) GDGT concentrations in SPM samples of the Amazon ...
Zell, Claudia, Denise J C Dorhout (7884113), Kim, Jung-Hyun, de Lima Sobrinho, Rodrigo, Jaap S Sinninghe Damsté (6885257), Dorhout, Denise J C, Jung-Hyun Kim (6976445), Patricia Moreira-Turcq (8020682), Moreira-Turcq, Patricia, Sinninghe Damsté, Jaap S, Claudia Zell (8010755), Abril, Gwenaël, Gwenaël Abril (8020688), Rodrigo de Lima Sobrinho (8010758)   +13 more
core   +1 more source