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  • ANT-XXVI/2; AWI_Paleo; Gravity corer (Kiel type); Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS75/072-4; PS75 BIPOMAC; SL; South Pacific Ocean  (2)
  • (9E)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene, per unit mass total organic carbon; (9Z)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene, per unit mass total organic carbon; 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene, per unit mass total organic carbon; 24-ethylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholesta-5,22E-dien-3beta-ol, per unit mass total organic carbon; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon; Age; AGE; Age, error; Antarctic sea ice; ANT-XXXI/3; AWI_Envi; AWI_Paleo; Branched and isoprenoid tetraether index; Bransfield Strait; Carbon, organic, total; Carbon/Nitrogen ratio; cholesta-5,24-dien-3beta-ol, per unit mass total organic carbon; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Diatoms, sea ice; Gas chromatography - Mass spectrometry (GC-MS); highly branched isoprenoids; IPSO25; Lead-210 excess; Lead-210 excess, error; Modern analog technique (MAT), D274/28/4an; MUC; MultiCorer; Paleoclimate; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Phytoplankton biomarker Brassicasterol IPSO25 index; Phytoplankton biomarker Dinosterol IPSO25 index; Phytoplankton biomarker HBI E-Triene IPSO25 index; Phytoplankton biomarker HBI Z-Triene IPSO25 index; PIPSO25 calculated after Vorrath et al., 2019; Polarstern; Polar Terrestrial Environmental Systems @ AWI; PS97; PS97/056-1; sea ice proxy; Sea surface temperature, summer; Sedimentation rate per year; SOTOH, SOT based on RI-OH caculated after Lü et al., 2015 (Eq. 13 and 14); SOTTEX, SOT based on TEXL86 calculated after Kim et al., 2010 (Eq. 7 and 8); Sub-surface ocean temperature; Transfer function, IKM – D336/29/3q  (1)
  • (24S)-Ethylcholest-5,22E-dien-3beta-ol, per unit mass total organic carbon; (24S)-Ethylcholest-5,22E-dien-3beta-ol per unit sediment mass; 10,13-dimethyl-17-[2-(2-ethylcyclopropyl)ethan-2-yl]-cyclopenta-phenanthren-5-ene, per unit mass total organic carbon; 10,13-dimethyl-17-[2-(2-ethylcyclopropyl)ethan-2-yl]-cyclopenta-phenanthren-5-ene per unit sediment mass; 24-ethylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Ethylcholest-5-en-3beta-ol per unit sediment mass; 24-Methylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholest-5-en-3beta-ol per unit sediment mass; 24-Methylcholesta-5,22E-dien-3beta-ol, per unit mass total organic carbon; 24-Methylcholesta-5,22E-dien-3beta-ol per unit sediment mass; 24-Methylcholesta-5,24(28)-dien-3beta-ol, per unit mass total organic carbon; 24-Methylcholesta-5,24(28)-dien-3beta-ol per unit sediment mass; 24-Nor-5a-cholest-22-en-3beta-ol, per unit mass total organic carbon; 24-Nor-5a-cholest-22-en-3beta-ol per unit sediment mass; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol per unit sediment mass; 5alpha-Cholestan-3beta-ol, per unit mass total organic carbon; 5alpha-Cholestan-3beta-ol per unit sediment mass; ANT-XXXI/3; Bransfield Strait; cholest-4-en-3-one, per unit mass total organic carbon; cholest-4-en-3-one per unit sediment mass; cholesta-5,24-dien-3beta-ol, per unit mass total organic carbon; cholesta-5,24-dien-3beta-ol per unit sediment mass; Cholesta-5-en-3beta-ol, per unit mass total organic carbon; Cholesta-5-en-3beta-ol per unit sediment mass; DEPTH, sediment/rock; diatoms; Drake Passage; Elevation of event; Event label; GBG; GC; Giant box corer; Giant box grab; GKG; Gravity corer; Latitude of event; Longitude of event; MUC; MultiCorer; organic carbon; Photosynthetic pigments; Polarstern; PS97; PS97/015-2; PS97/020-1; PS97/021-1; PS97/022-1; PS97/024-2; PS97/027-1; PS97/042-1; PS97/044-1; PS97/045-1; PS97/046-6; PS97/048-1; PS97/049-2; PS97/052-3; PS97/053-1; PS97/054-2; PS97/055-2; PS97/056-1; PS97/059-1; PS97/060-1; PS97/061-1; PS97/062-1; PS97/065-2; PS97/067-2; PS97/068-2; PS97/069-1; PS97/071-2; PS97/072-2; PS97/074-1; PS97/077-1; PS97/079-1; PS97/080-2; PS97/083-1; PS97/084-2; PS97/085-2; PS97/086-2; PS97/089-2; PS97/093-3; PS97/094-1; PS97/095-1; PS97/096-1; PS97/114-1; PS97/122-2; PS97/128-1; PS97/129-2; PS97/131-1; PS97/134-1; Scotia Sea; South Pacific Ocean; sterols; stigmasta-5,24(28)-dien-3-ol, per unit mass total organic carbon; stigmasta-5,24(28)-dien-3-ol per unit sediment mass; surface sediments
Document type
Keywords
Publisher
Years
  • 1
    facet.materialart.
    Unknown
    PANGAEA
    In:  Alfred Wegener Institute - Polarstern core repository
    Publication Date: 2024-06-26
    Keywords: ANT-XXVI/2; AWI_Paleo; Gravity corer (Kiel type); Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS75/072-4; PS75 BIPOMAC; SL; South Pacific Ocean
    Type: Dataset
    Format: unknown
    Location Call Number Limitation Availability
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  • 2
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Studer, Anja S; Sigman, Daniel M; Martínez‐García, Alfredo; Benz, Verena; Winckler, Gisela; Kuhn, Gerhard; Esper, Oliver; Lamy, Frank; Jaccard, Samuel L; Wacker, Lukas; Oleynik, Sergey; Gersonde, Rainer; Haug, Gerald H (2015): Antarctic Zone nutrient conditions during the last two glacial cycles. Paleoceanography, 30(7), 845-862, https://doi.org/10.1002/2014PA002745
    Publication Date: 2024-06-26
    Description: In a sediment core from the Pacific sector of the Antarctic Zone (AZ) of the Southern Ocean, we report diatom-bound N isotope (d15Ndb) records for total recoverable diatoms and two distinct diatom assemblages (pennate and centric rich). These data indicate tight coupling between the degree of nitrate consumption and Antarctic climate across the last two glacial cycles, with d15Ndb (and thus the degree of nitrate consumption) increasing at each major Antarctic cooling event. Coupled with evidence from opal- and barium-based proxies for reduced export production during ice ages, the d15Ndb increases point to ice age reductions in the supply of deep ocean-sourced nitrate to the AZ surface. The two diatom assemblages and species abundance data indicate that the d15Ndb changes are not the result of changing species composition. The pennate and centric assemblage d15Ndb records indicate similar changes but with a significant decline in their difference during peak ice ages. A tentative seasonality-based interpretation of the centric-to-pennate d15Ndb difference suggests that late summer surface waters became nitrate free during the peak glacials.
    Keywords: ANT-XXVI/2; AWI_Paleo; Gravity corer (Kiel type); Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS75/072-4; PS75 BIPOMAC; SL; South Pacific Ocean
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2024-06-26
    Keywords: (9E)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene, per unit mass total organic carbon; (9Z)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene, per unit mass total organic carbon; 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene, per unit mass total organic carbon; 24-ethylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholesta-5,22E-dien-3beta-ol, per unit mass total organic carbon; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon; Age; AGE; Age, error; Antarctic sea ice; ANT-XXXI/3; AWI_Envi; AWI_Paleo; Branched and isoprenoid tetraether index; Bransfield Strait; Carbon, organic, total; Carbon/Nitrogen ratio; cholesta-5,24-dien-3beta-ol, per unit mass total organic carbon; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Diatoms, sea ice; Gas chromatography - Mass spectrometry (GC-MS); highly branched isoprenoids; IPSO25; Lead-210 excess; Lead-210 excess, error; Modern analog technique (MAT), D274/28/4an; MUC; MultiCorer; Paleoclimate; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Phytoplankton biomarker Brassicasterol IPSO25 index; Phytoplankton biomarker Dinosterol IPSO25 index; Phytoplankton biomarker HBI E-Triene IPSO25 index; Phytoplankton biomarker HBI Z-Triene IPSO25 index; PIPSO25 calculated after Vorrath et al., 2019; Polarstern; Polar Terrestrial Environmental Systems @ AWI; PS97; PS97/056-1; sea ice proxy; Sea surface temperature, summer; Sedimentation rate per year; SOTOH, SOT based on RI-OH caculated after Lü et al., 2015 (Eq. 13 and 14); SOTTEX, SOT based on TEXL86 calculated after Kim et al., 2010 (Eq. 7 and 8); Sub-surface ocean temperature; Transfer function, IKM – D336/29/3q
    Type: Dataset
    Format: text/tab-separated-values, 709 data points
    Location Call Number Limitation Availability
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