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  • 1
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    Unknown
    Multi-fire-proxy record of sediment core GeoB10053-7 (2020)
    PANGAEA
    Details
    Publication Date: 2023-03-03
    Description: This file contains three spreadsheets. The spreadsheet 'Levoglucosan' contains the concentration and accumulation rate of the compound levoglucosan. The spreadsheet 'PAHs' contains the concentration and accumulaition rate of individual PAHs compounds and their sum. The ratio of IP/(IP+BghiP) and the normalised ratio of (LVG/LVG+PAHs) are also included. The spreadsheet 'Micro-charcoal' contains the micro-charcoal particle count and its accumulation rate.
    Keywords: Center for Marine Environmental Sciences; levoglucosan; MARUM; micro-charcoal; PAH
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 2
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    Palynological records and n-alkane records of sediment core GeoB10053-7 (2018)
    PANGAEA
    Details
    Publication Date: 2023-03-03
    Description: The Maritime Continent, home to widespread tropical rainforest and millions of people, is the primary region of deep atmospheric convection on the Earth. However, debate exists whether the isotopologues of water reflect rainfall amount during the Last Glacial Maximum (LGM), resulting in different interpretations of the LGM climate of the Maritime Continent. Here we present paired leaf wax δ13C and δD records together with pollen data from a sediment core retrieved off East Java dating back to 22,000 years before present. We use three n-alkane homologues (n-C29, n-C31 and n-C33) in order to reconstruct past changes in vegetation types and seasonal rainfall. Our results suggest that in East Java, evergreen rainforest remained the dominant vegetation type in montane regions since the seasonality there remained relatively unaltered over the entire period. In contrast, the East Javanese lowlands were characterised by C4 grass expansion and an extended dry season but a wetter rainy season, thus stronger seasonality, during the LGM.
    Keywords: Center for Marine Environmental Sciences; MARUM
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 3
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    Micro-charcoal of sediment core GeoB10053-7 (2020)
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: Accumulation rate, microcharcoal; AGE; Center for Marine Environmental Sciences; DEPTH, sediment/rock; GeoB10053-7; Gravity corer (Kiel type); levoglucosan; MARUM; Microcharcoal; micro-charcoal; PABESIA; PAH; SL; SO184/2; Sonne
    Type: Dataset
    Format: text/tab-separated-values, 68 data points
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  • 4
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    Concentration and accumulation rate of the compound levoglucosan of sediment core GeoB10053-7 (2020)
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: Accumulation rate, levoglucosan; AGE; Center for Marine Environmental Sciences; DEPTH, sediment/rock; GeoB10053-7; Gravity corer (Kiel type); levoglucosan; Levoglucosan; MARUM; micro-charcoal; PABESIA; PAH; SL; SO184/2; Sonne
    Type: Dataset
    Format: text/tab-separated-values, 138 data points
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  • 5
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    N-alkane homologue records (stable hydrogen and carbon isotopes, concentrations) of sediment core GeoB10053-7 (2018)
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: AGE; Center for Marine Environmental Sciences; DEPTH, sediment/rock; Difference; GeoB10053-7; Gravity corer (Kiel type); MARUM; n-Alkane C29; n-Alkane C29, δ13C; n-Alkane C29, δD; n-Alkane C31; n-Alkane C31, δ13C; n-Alkane C31, δD; n-Alkane C33; n-Alkane C33, δ13C; n-Alkane C33, δD; PABESIA; SL; SO184/2; Sonne
    Type: Dataset
    Format: text/tab-separated-values, 1139 data points
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  • 6
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    Polycyclic aromatic hydrocarbons and fire intensity ratio of sediment core GeoB10053-7 (2020)
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: Accumulation rate, polycyclic aromatic hydrocarbons; AGE; Benzo(a)anthracene, per unit sediment mass; Benzo(a)pyrene, per unit sediment mass; Benzo(b/j/k)fluoranthene, per unit sediment mass; Benzo(g,h,i)perylene, per unit sediment mass; Center for Marine Environmental Sciences; Chrysene, per unit sediment mass; DEPTH, sediment/rock; Dibenzo(a,h)anthracene, per unit sediment mass; GeoB10053-7; Gravity corer (Kiel type); Indeno(1,2,3-cd)pyrene, per unit sediment mass; levoglucosan; MARUM; micro-charcoal; Normalized Levoglucosan/(Levoglucosan+PAHs) ratio; PABESIA; PAH; PAH diagnostic ratio; Polycyclic aromatic hydrocarbons, per unit sediment mass; SL; SO184/2; Sonne
    Type: Dataset
    Format: text/tab-separated-values, 809 data points
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  • 7
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    Palynological records of sediment core GeoB10053-7 (2018)
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: AGE; Center for Marine Environmental Sciences; Confidence interval; Confidence interval, maximum value; Confidence interval, minimum value; DEPTH, sediment/rock; Eucalyptus-type; Fern spores/pollen ratio; GeoB10053-7; Gravity corer (Kiel type); Gyrostemon-type; Lowland rainforest; MARUM; Montane rainforest/total rainforest; PABESIA; Poaceae; SL; SO184/2; Sonne
    Type: Dataset
    Format: text/tab-separated-values, 612 data points
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  • 8
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    Branched GDGT accumulation rates of sediment core GeoB10053-7 (2023)
    PANGAEA
    Details
    Publication Date: 2024-02-29
    Keywords: Accumulation rate, branched glycerol dialkyl glycerol tetraethers; AGE; Branched GDGT extraction and analysis according to Chen et al. (2014); Center for Marine Environmental Sciences; DEPTH, sediment/rock; GeoB10053-7; Gravity corer (Kiel type); leaf waxes; levoglucosan; Marine Sediment Core; MARUM; PABESIA; SL; SO184/2; Sonne
    Type: Dataset
    Format: text/tab-separated-values, 53 data points
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  • 9
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    Leaf wax markers of sediment core GeoB10053-7 (2023)
    PANGAEA
    Details
    Publication Date: 2024-04-26
    Keywords: AGE; Calculated; Center for Marine Environmental Sciences; Comment; DEPTH, sediment/rock; Difference; Gas chromatography - Isotope ratio mass spectrometer (GC-IRMS); GeoB10053-7; Gravity corer (Kiel type); leaf waxes; levoglucosan; Marine Sediment Core; MARUM; PABESIA; SL; SO184/2; Sonne; δ13C, wax; δ Deuterium, wax
    Type: Dataset
    Format: text/tab-separated-values, 197 data points
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  • 10
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    5000 years of multi-proxy reconstruction based on sediment core GeoB10053-7 (2023)
    PANGAEA
    Details
    Publication Date: 2024-04-26
    Description: About 40 samples are collected from the upper 250 cm of the sediment core GeoB 10053-7 offshore Java, covering the past 5,000 years (Mohtadi et al., 2011; doi:10.1038/ngeo1209). The average sample resolution is around 120 years. Here, we use markers for low intensity fires and soil erosion to reconstruct human activities in East Java (Indonesia) over the last 5,000 years. We use the accumulation rate of branched glycerol dialkyl glycerol tetraethers (brGDGTs), markers for soil-derived organic matter, to indicate levels of soil erosion in the catchment region. We also use the accumulation rate of levoglucosan to indicate past fire use in the catchment. Independent hydroclimate reconstruction that are not influenced by human activities is compared in order to differentiate the impact of human activities vs. hydroclimate on soil erosion in the catchment area. Specifically, the stable hydrogen isotope composition (δD) of leaf wax n-alkanes reflect changes in the monsoonal rainfall intensity in the catchment. In addition, the stable carbon isotope composition (δ13C) of leaf wax n-alkanes derived from our sediment core reflects the relative abundance of regional C3 versus C4 vegetation.
    Keywords: Center for Marine Environmental Sciences; leaf waxes; levoglucosan; Marine Sediment Core; MARUM
    Type: Dataset
    Format: application/zip, 3 datasets
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