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  • PANGAEA  (103)
  • American Geophysical Union (AGU)  (1)
  • ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
  • Nature Research
  • 2020-2024  (104)
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Keywords
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  • PANGAEA  (103)
  • American Geophysical Union (AGU)  (1)
  • ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
  • Nature Research
  • Elsevier  (1)
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  • 1
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    American Geophysical Union (AGU)
    In:  EPIC3Journal of Geophysical Research Biogeosciences, American Geophysical Union (AGU), 128(10), ISSN: 2169-8953
    Publication Date: 2024-04-11
    Description: Human activities have increasingly changed terrestrial particulate organic carbon (POC) export to the coastal ocean since the Industrial Age (19th century). However, the influence of human perturbations on the composition and flux of terrestrial biospheric and petrogenic POC sub-pools remains poorly constrained. Here, we examined 13C and 14C compositions of bulk POC and source-specific biomarkers (fatty acids, FA) from two nearshore sediment cores collected in the Pearl River-derived mudbelt, to determine the impacts of human perturbations of the Pearl River watershed on the burial of terrestrial POC in the coastal ocean over the last century. Our results show that although agricultural practices and deforestation during the 1930s–1950s increased C4 plant coverage in the watershed, the export fluxes of terrestrial biospheric and petrogenic POC remained rather unchanged; however, added perturbations since 1974, including increasing coal consumption, embankment and dam constructions caused massive export of both petrogenic POC and relatively fresh terrestrial biospheric POC from the river delta. Our data reveal that human activities substantially enhance the transfer of petrogenic POC and fresh biospheric POC to the coastal ocean after ca. 1974, with the latter process acting as an important sink for anthropogenic CO2.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2023-02-07
    Description: Fractional abunances of isoprenoid GDGTs calculated from the peak areas detected for the molecule peaks in the HPLC chromatograms. These data are an addition to the already archived TEX86 and UK'37 data in core-top sediments from off Indonesia (doi:10.1594/PANGAEA.823057).
    Keywords: Acyclic glycerol dialkyl glycerol tetraether, fractional abundance; Crenarchaeol, fractional abundance; Crenarchaeol isomer, fractional abundance; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Dicyclic glycerol dialkyl glycerol tetraether, fractional abundance; Elevation of event; Event label; fractional abundance; GDGTs; GeoB10008-4; GeoB10010-1; GeoB10014-1; GeoB10015-1; GeoB10016-2; GeoB10022-3; GeoB10024-3; GeoB10025-3; GeoB10026-2; GeoB10027-3; GeoB10028-4; GeoB10029-3; GeoB10031-3; GeoB10032-1; GeoB10033-5; GeoB10034-3; GeoB10036-3; GeoB10037-2; GeoB10038-3; GeoB10039-3; GeoB10040-3; GeoB10041-3; GeoB10043-2; GeoB10044-3; GeoB10047-1; GeoB10049-5; GeoB10050-1; GeoB10058-1; GeoB10059-1; GeoB10061-5; GeoB10063-5; GeoB10064-5; GeoB10066-6; GeoB10067-5; GeoB10068-1; GeoB10069-4; High Performance Liquid Chromatography (HPLC); Latitude of event; Longitude of event; Monocyclic glycerol dialkyl glycerol tetraether, fractional abundance; MSN; MUC; MultiCorer; Multiple opening/closing net; PABESIA; SO184/1; SO184/2; Sonne; Tricyclic glycerol dialkyl glycerol tetraether, fractional abundance
    Type: Dataset
    Format: text/tab-separated-values, 288 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2023-06-27
    Keywords: African Humid Period; Candona sp., juvenile, δ13C; Candona sp., juvenile, δ18O; DEPTH, sediment/rock; Green Sahara; High Atlas Mountains, Marocco; Holocene; Lake_Tislit; Palaeoclimate reconstructions; RUSC; Russian corer; vegetation model simulations
    Type: Dataset
    Format: text/tab-separated-values, 348 data points
    Location Call Number Limitation Availability
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  • 4
    Publication Date: 2023-06-27
    Keywords: African Humid Period; DEPTH, sediment/rock; Green Sahara; High Atlas Mountains, Marocco; Holocene; Lake_Tislit; Palaeoclimate reconstructions; Precipitation, April; Precipitation, August; Precipitation, December; Precipitation, February; Precipitation, January; Precipitation, July; Precipitation, June; Precipitation, March; Precipitation, May; Precipitation, November; Precipitation, October; Precipitation, September; RUSC; Russian corer; Transfer Function Technique (TFT); vegetation model simulations
    Type: Dataset
    Format: text/tab-separated-values, 1932 data points
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  • 5
    Publication Date: 2023-06-27
    Keywords: African Humid Period; DEPTH, sediment/rock; Green Sahara; High Atlas Mountains, Marocco; Holocene; Lake_Tislit; Palaeoclimate reconstructions; RUSC; Russian corer; Temperature, calculated; Transfer Function Technique (TFT); vegetation model simulations
    Type: Dataset
    Format: text/tab-separated-values, 1932 data points
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2023-07-20
    Description: The data set contains lipid biomarker and bulk organic matter data from two sediment cores in the Shaban Deep, in the northern Red Sea. One core is deposited in the hypersaline brine (GeoB7805-1 2) and the other core (GeoB7807-2) is deposited outside the brine. The data set compares the lipid biomarker signals in the two deposition settings. For both cores the data set contains total organic carbon data, total nitrogen data, bulk organic matter carbon and hydrogen isotope data, long-chain n-alkane concentrations, alkenone concentrations, long- and short-chain fatty acid concentrations, long-chain n-alkane and long-chain fatty acid average chain length and carbon preference index data, UK37 data, stable carbon and hydrogen isotope data for long-chain n-alkanes, alkenones, and long- and short chain fatty acids.
    Keywords: Alkenones; Center for Marine Environmental Sciences; fatty acids; lipid biomarkers; marine organic matter degradation; MARUM; n-alkanes; particulate organic matter; Red Sea; Shaban Deep; stable carbon isotopes δ13C; stable hydrogen isotopes δ2H
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 7
    Publication Date: 2023-08-16
    Keywords: African Humid Period; Age, 14C calibrated, IntCal13 (Reimer et al., 2013); Age, dated; Age, dated standard deviation; Calendar age, maximum/old; Calendar age, minimum/young; DEPTH, sediment/rock; Green Sahara; High Atlas Mountains, Marocco; Holocene; Laboratory code/label; Lake_Tislit; Palaeoclimate reconstructions; Probability; RUSC; Russian corer; vegetation model simulations
    Type: Dataset
    Format: text/tab-separated-values, 48 data points
    Location Call Number Limitation Availability
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  • 8
    Publication Date: 2023-11-01
    Keywords: Acer; African Humid Period; Alisma; Alnus; Apiaceae; Artemisia; Asphodelus; Asteraceae; Berberis vulgaris; Boraginaceae; Brassicaceae; Calystegia fretes; Campanulaceae; Caryophyllaceae; Castilleja fissiflolia; Cedrus atlantica; Centaurea; Cereales; Chenopodiaceae; Cichorioideae; Cistus; Convolvulus althaeoides; Counting, palynology; Cupressaceae; Cyperaceae; Daphne; DEPTH, sediment/rock; Digitalis; Ephedra; Eucalyptus; Euphorbiaceae; Fabaceae; Fagus; Fraxinus; Geranium; Green Sahara; Helianthemum; Hibiscus; High Atlas Mountains, Marocco; Holocene; Ilex aquifolium; Illecebrum; Juncus; Lake_Tislit; Lamiaceae; Liliaceae; Linum; Lycopodium; Macrochloa tenacissima; Malva sylvestris; Myriophyllum spicatum; Nerium; Olea; Ostrya; Palaeoclimate reconstructions; Papaver; Pedicularis; Phillyrea; Pinus; Pistacia; Plantago; Poaceae; Polygonum; Populus; Potamogeton; Primulaceae; Pseudoschizaea circula; Quercus; Ranunculus; Rhus; Rosaceae; Rubiaceae; Rumex; RUSC; Russian corer; Salix; Salvadora; Saxifraga; Scabiosa; Scrophularia; Taxus; Typha angustifolia; Typha latifolia; Ulmaceae; Urtica; vegetation model simulations; Veronica; Vitis
    Type: Dataset
    Format: text/tab-separated-values, 12397 data points
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  • 9
    Publication Date: 2023-10-27
    Description: This data set includes δ¹³C of bulk OC and Fatty acids in two nearshore sediment cores collected by the piston corer from coastal South China Sea. These data could help us to constrain the anthropogenic perturbations of different terrestrial OC export to the coastal ocean.
    Keywords: 12-methyl-Tetradecanoic acid, δ13C; 12-methyl-Tetradecanoic acid, δ13C, standard deviation; 13-methyl-Tetradecanoic acid, δ13C; 13-methyl-Tetradecanoic acid, δ13C, standard deviation; Age; AGE; BC; Box corer; bulk 13C and C14 analyses; coastal South China Sea; Compound-specific 13C and 14C analyses; DEPTH, sediment/rock; Docosanoic acid, δ13C; Docosanoic acid, δ13C, standard deviation; Dotriacontanoic acid, δ13C; Dotriacontanoic acid, δ13C, standard deviation; Event label; fatty acids; Gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS); Heneicosanoic acid, δ13C; Heneicosanoic acid, δ13C, standard deviation; Hentriacontanoic acid, δ13C; Hentriacontanoic acid, δ13C, standard deviation; Heptacosanoic acid, δ13C; Heptacosanoic acid, δ13C, standard deviation; Heptadecanoic acid, δ13C; Heptadecanoic acid, δ13C, standard deviation; Hexacosanoic acid, δ13C; Hexacosanoic acid, δ13C, standard deviation; Hexadecanoic acid, δ13C; Hexadecanoic acid, δ13C, standard deviation; Icosanoic acid, δ13C; Icosanoic acid, δ13C, standard deviation; Nonacosanoic acid, δ13C; Nonacosanoic acid, δ13C, standard deviation; Nonadecanoic acid, δ13C; Nonadecanoic acid, δ13C, standard deviation; Octacosanoic acid, δ13C; Octacosanoic acid, δ13C, standard deviation; Octadecanoic acid, δ13C; Octadecanoic acid, δ13C, standard deviation; Pearl River Basin; Pentacosanoic acid, δ13C; Pentacosanoic acid, δ13C, standard deviation; Pentadecanoic acid, δ13C; Pentadecanoic acid, δ13C, standard deviation; Sample code/label; South China Sea; Tetracosanoic acid, δ13C; Tetracosanoic acid, δ13C, standard deviation; Tetradecanoic acid, δ13C; Tetradecanoic acid, δ13C, standard deviation; Triacontanoic acid, δ13C; Triacontanoic acid, δ13C, standard deviation; Tricosanoic acid, δ13C; Tricosanoic acid, δ13C, standard deviation; WSB; XIN201307; XIN201307_WSB; XIN201307_YJXB; Xintenglonghao; YJXB
    Type: Dataset
    Format: text/tab-separated-values, 836 data points
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  • 10
    Publication Date: 2023-12-18
    Keywords: AGE; Center for Marine Environmental Sciences; COMPCORE; Composite Core; Compound-specific carbon isotopes; East Asian monsoon; Estimated; GeoB16602; MARUM; n-Alkane C4 plant; Plant-wax lipids; South China Sea; Standard error; Vegetation composition
    Type: Dataset
    Format: text/tab-separated-values, 362 data points
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