Fractional abundances of biomarkers from IODP Hole 350-U1437B


The dataset comprises fractional abundances of individual isoprenoid and branched glycerol dialkyl glycerol tetraethers (GDGTs) and C37 alkenones of samples from the past 1 Ma at Site 350-U1437 relevant for the calculation of the TEX86 (tetraether index based on glycerol dialkyl glycerol tetraethers consisting of 86 carbon atoms), methane index (MI), branched and isoprenoid tetraether index (BIT), and the unsaturated ketone index (UK'37), respectively. The ketone-bearing fractions were measured on an Agilent 7980 GC coupled to an Agilent 5975 MS (Agilent, Germany). The polar fractions were analyzed by high performance liquid chromatography coupled to mass spectrometry (HPLC/MS) using an Alliance 2690 HPLC (Waters, UK) and a Quattro LC triple quadrupole MS (Micromass, UK) to measure glycerol dialkyl glycerol tetraethers (GDGTs).

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Metadata Access
Creator Jonas, Ann-Sophie ORCID logo; Kars, Myriam ORCID logo; Bauersachs, Thorsten ORCID logo; Ruebsam, Wolfgang; Schwark, Lorenz ORCID logo
Publisher PANGAEA
Publication Year 2023
Funding Reference German Research Foundation Crossref Funder ID SCHW 554/27-1,2 Paleoclimate evolution in the Northwest Pacific over the last 25 Ma
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 2436 data points
Discipline Earth System Research
Spatial Coverage (139.026 LON, 31.790 LAT); Izu-Bonin-Mariana fore arc
Temporal Coverage Begin 2014-04-11T01:35:00Z
Temporal Coverage End 2014-04-13T21:45:00Z