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Jonas, Ann-Sophie; Kars, Myriam; Bauersachs, Thorsten; Ruebsam, Wolfgang; Schwark, Lorenz (2023): Fractional abundances of biomarkers from IODP Hole 350-U1437B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.950515, In: Jonas, A-S et al. (2023): Biomarker and XRF scanning data from IODP Site 350-U1437B: a study of paleoceanographic and paleoclimatic changes in the Northwest Pacific Ocean over the past 1 Ma [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.950517

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Abstract:
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).
Keyword(s):
Alkenones; Dust flux; GDGTs; n-alcohols; n-alkanes; nonacosan-10-ol; Northwestern Pacific Ocean; paleotemperature; plant wax lipids; productivity; Sea surface temperature; TEXH86; Uk´37; westerly jet stream; XRF
Funding:
German Research Foundation (DFG), grant/award no. SCHW 554/27-1,2: Paleoclimate evolution in the Northwest Pacific over the last 25 Ma
Coverage:
Latitude: 31.789900 * Longitude: 139.026300
Date/Time Start: 2014-04-11T01:35:00 * Date/Time End: 2014-04-13T21:45:00
Minimum DEPTH, sediment/rock: 0.02 m * Maximum DEPTH, sediment/rock: 122.24 m
Event(s):
350-U1437B * Latitude: 31.789900 * Longitude: 139.026300 * Date/Time Start: 2014-04-11T01:35:00 * Date/Time End: 2014-04-13T21:45:00 * Elevation: -2116.1 m * Number of cores: 55 * Penetration: 439.1 m * Recovery: 55 % * Location: Izu-Bonin-Mariana fore arc (IBM) * Campaign: Exp350 * Method/Device: Core drilling (CDRILL)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Proposed International Geo Sample NumberProp IGSNJonas, Ann-Sophie
2Sample code/labelSample labelJonas, Ann-Sophie
3HalfHalfJonas, Ann-Sophie
4DEPTH, sediment/rockDepth sedmJonas, Ann-SophieGeocode
5AgeAgeMaJonas, Ann-SophieAge model (Kars et al., 2017)
6AGEAgeka BPJonas, Ann-SophieGeocode
7Monocyclic glycerol dialkyl glycerol tetraether, fractional abundanceGDGT-1Jonas, Ann-Sophiesee description in data abstract
8Dicyclic glycerol dialkyl glycerol tetraether, fractional abundanceGDGT-2Jonas, Ann-Sophiesee description in data abstract
9Tricyclic glycerol dialkyl glycerol tetraether, fractional abundanceGDGT-3Jonas, Ann-Sophiesee description in data abstract
10Crenarchaeol, fractional abundanceCrenJonas, Ann-Sophiesee description in data abstract
11Crenarchaeol regio-isomer, fractional abundanceCren'Jonas, Ann-Sophiesee description in data abstract
12Tetramethylated glycerol dialkyl glycerol tetraether, fractional abundanceGDGT IJonas, Ann-Sophiesee description in data abstract
13Pentamethylated glycerol dialkyl glycerol tetraether, fractional abundanceGDGT IIJonas, Ann-Sophiesee description in data abstract
14Hexamethylated glycerol dialkyl glycerol tetraether, fractional abundanceGDGT IIIJonas, Ann-Sophiesee description in data abstract
15Alkenone, C37:2, fractional abundanceC37:2Jonas, Ann-Sophiesee description in data abstract
16Alkenone, C37:3, fractional abundanceC37:3Jonas, Ann-Sophiesee description in data abstract
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2436 data points

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