Results 41 to 50 of about 92,659 (149)

Evaluation of bacterial glycerol dialkyl glycerol tetraether and ²H–¹⁸O biomarker proxies along a central European topsoil transect [PDF]

Biogeosciences, 2020
Molecular fossils, like bacterial branched glycerol dialkyl glycerol tetraethers (brGDGTs), and the stable isotopic composition of biomarkers, such as δ2H of leaf wax-derived n-alkanes (δ2Hn-alkane) or δ18O of hemicellulose-derived sugars (δ18Osugar ...
J. Hepp, J. Hepp, I. K. Schäfer, V. Lanny, J. Franke, M. Bliedtner, M. Bliedtner, K. Rozanski, B. Glaser, M. Zech, M. Zech, T. I. Eglinton, R. Zech, R. Zech   +13 more
doaj   +1 more source

Tetraether biomarker records from a loess-paleosol sequence in the western Chinese Loess Plateau

Frontiers in Microbiology, 2013
The ubiquitous occurrence of glycerol dialkyl glycerol tetraethers (GDGTs) in soils and their ability to record temperature and environmental changes offer the prospect of independently reconstructing continental paleotemperature and paleoenvironment ...
Guodong eJia, Zhiguo eRao, Jie eZhang, Zhiyang eLi, Fahu eChen   +4 more
doaj   +1 more source

Branched GDGTs in Lake Challa sediments

, 2012
Branched GDGTs in Lake Challa ...
Schouten, Stefan, Ossebaar, Jort, Jaap S Sinninghe Damsté (6885257), Dirk Verschuren (8020796), Jort Ossebaar (8007473), Verschuren, Dirk, Stefan Schouten (6885260), Sinninghe Damsté, Jaap S   +7 more
core   +1 more source

Provenance of tetraether membrane lipids in a large temperate lake (Loch Lomond, UK): implications for glycerol dialkyl glycerol tetraether (GDGT)-based palaeothermometry [PDF]

Biogeosciences, 2014
The application of glycerol dialkyl glycerol tetraether (GDGT)-based palaeoenvironmental proxies, such as the branched vs. isoprenoidal tetratether (BIT) index, TEX86 and the MBT–CBT palaeothermometer, has lately been expanded to lacustrine sediments ...
L. K. Buckles, J. W. H. Weijers, X.-M. Tran, S. Waldron, J. S. Sinninghe Damsté   +4 more
doaj   +1 more source

(Table 2) Branched GDGTs in core lipid fractions of lakes in Minnesota and Iowa

, 2013
(Table 2) Branched GDGTs in core lipid fractions of lakes in Minnesota and ...
Downing, John A, Schouten, Stefan, Jack J Middelburg (6975785), Petra L Schoon (6958424), Middelburg, Jack J, Jaap S Sinninghe Damsté (6885257), Anna de Kluijver (6968822), John A Downing (8021654), de Kluijver, Anna, Schoon, Petra L, Stefan Schouten (6885260), Sinninghe Damsté, Jaap S   +11 more
core   +1 more source

Branched GDGTs as Proxies in Surface Sediments From the South-Eastern Brazilian Continental Margin

Frontiers in Earth Science, 2019
Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are membrane lipids produced by bacteria usually ascribed to soil and peat deposits. The presence of brGDGTs in marine sediments can thus be used to track terrigenous organic matter inputs to the ...
Milena Ceccopieri, Renato S. Carreira, Angela L. R. Wagener, Jens Hefter, Gesine Mollenhauer   +4 more
doaj   +1 more source

(Table 3) Branched GDGTs in intact polar lipid fractions of lakes in Minnesota and Iowa

, 2013
(Table 3) Branched GDGTs in intact polar lipid fractions of lakes in Minnesota and ...
Downing, John A, Schouten, Stefan, Jack J Middelburg (6975785), Petra L Schoon (6958424), Middelburg, Jack J, Jaap S Sinninghe Damsté (6885257), Anna de Kluijver (6968822), John A Downing (8021654), de Kluijver, Anna, Schoon, Petra L, Stefan Schouten (6885260), Sinninghe Damsté, Jaap S   +11 more
core   +1 more source

(Figure 6) Concentrations of Glc-branched-GDGT, GlcA-branched-GDGT, 2Gly-isoprenoid-GDNT, PME-DAG, PE-DEG, sum of archaeal IPLs, sum of bacterial IPLs, sum of total IPLs, core lipids of branched and isoprenoidal GDGTs in Bullenmoor peat bog

, 2010
(Figure 6) Concentrations of Glc-branched-GDGT, GlcA-branched-GDGT, 2Gly-isoprenoid-GDNT, PME-DAG, PE-DEG, sum of archaeal IPLs, sum of bacterial IPLs, sum of total IPLs, core lipids of branched and isoprenoidal GDGTs in Bullenmoor peat ...
Gerard J M Versteegh (7886111), Kai-Uwe Hinrichs (6960101), Aimee Gillespie (7963490), Versteegh, Gerard J M, Hinrichs, Kai-Uwe, Arne Leider (6969833), Xiao-Lei Liu (6974528), Leider, Arne, Gillespie, Aimee, Liu, Xiao-Lei, Gröger, Jens, Jens Gröger (7946405)   +11 more
core   +1 more source

Examining the provenance of branched GDGTs in the Tagus River drainage basin and its outflow into the Atlantic Ocean over the Holocene to determine their usefulness for paleoclimate applications [PDF]

Biogeosciences, 2016
The distributions of branched glycerol dialkyl glycerol tetraethers (brGDGTs), which are transported from the soils where they are predominantly produced to marine sediments via rivers, have been applied in reconstructing mean annual air temperature (MAT)
L. Warden, J.-H. Kim, C. Zell, G.-J. Vis, H. de Stigter, J. Bonnin, J. S. Sinninghe Damsté   +6 more
doaj   +1 more source

Transition of Glacial Regimes Recorded at IODP Site U1524 in the Ross Sea, Antarctica, Over the Last 800 Thousand Years

Paleoceanography and Paleoclimatology, Volume 41, Issue 10, October 2026.
Abstract Reconstructing past interactions between the West Antarctic Ice Sheet (WAIS) and changing environmental conditions in the Ross Sea region can help determine long‐term WAIS stability. Existing sedimentary records reveal changes to oceanography, sea ice and ice sheet extent over the glacial‐interglacial cycles of the last ∼800 kyr.
J. W. Marschalek, T. van de Flierdt, M. O. Patterson, G. Grant, S. Kim, W. Xiao, Q. Li, G. Cortese, S. Bombard, R. M. Leckie, H. Ishii, T. van Peer, C. Xuan, S. Sugisaki, J. Müller, D. Kaufman, D. K. Kulhanek, K. J. Licht, S. R. Hemming, O. Seki, E. Colizza, F. Torricella, J. Gales, B. W. Romans, N. Varela, L. De Santis, R. M. McKay   +26 more
wiley   +1 more source