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  • -; Age, 14C AMS; Age, 14C calibrated; Age, dated; Age, dated material; Age, dated standard deviation; Age, maximum/old; Age, minimum/young; Calendar age; DEPTH, sediment/rock; Giant piston corer; GPC; IMAGES; IMAGES VII - WEPAMA; International Marine Global Change Study; Laboratory; Laboratory code/label; Marion Dufresne (1995); MD012390; MD01-2390; MD122; South China Sea  (1)
  • 2010-GB2-MC; AWI_SPACE; Core tops; DEPTH, sediment/rock; EISPAC/WESTWIND; Elevation of event; Event label; Foraminifera, planktic δ13C; Foraminifera, planktic δ18O; GB2-MCA; GeoB10008-4; GeoB10058-1; GeoB10069-4; GeoB17426-2; Individual foraminifera; Latitude of event; Longitude of event; Mg/Ca; MUC; MultiCorer; Number of specimens; PABESIA; SO184/1; SO184/2; SO228; Sonne; Space-time structure of climate change @ AWI; Species; Stable carbon and oxygen isotopes; Type  (1)
  • AGE; AMS 14C ages; Calculated according to Anand et al. (2008); DEPTH, sediment/rock; Globigerinoides ruber white, Magnesium/Calcium ratio; ICP-OES (Agilent 700); Indian Ocean; MD161/17; MD161-17; Mg/Ca; Mg/Ca-derived temperature; Sea surface temperature, annual mean; SST
Document type
Keywords
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Years
  • 1
    Publication Date: 2023-10-18
    Keywords: 2010-GB2-MC; AWI_SPACE; Core tops; DEPTH, sediment/rock; EISPAC/WESTWIND; Elevation of event; Event label; Foraminifera, planktic δ13C; Foraminifera, planktic δ18O; GB2-MCA; GeoB10008-4; GeoB10058-1; GeoB10069-4; GeoB17426-2; Individual foraminifera; Latitude of event; Longitude of event; Mg/Ca; MUC; MultiCorer; Number of specimens; PABESIA; SO184/1; SO184/2; SO228; Sonne; Space-time structure of climate change @ AWI; Species; Stable carbon and oxygen isotopes; Type
    Type: Dataset
    Format: text/tab-separated-values, 2535 data points
    Location Call Number Limitation Availability
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  • 2
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    PANGAEA
    In:  Supplement to: Steinke, Stephan; Mohtadi, Mahyar; Groeneveld, Jeroen; Lin, Li-Chuan; Löwemark, Ludvig; Chen, Min-Te; Rendle-Bühring, Rebecca (2010): Reconstructing the southern South China Sea upper water column structure since the Last Glacial Maximum: Implications for the East Asian winter monsoon development. Paleoceanography, 25(2), PA2219, https://doi.org/10.1029/2009PA001850
    Publication Date: 2023-11-04
    Description: Upper water column dynamics in the southern South China Sea were reconstructed in order to track changes in the activity of the East Asian winter monsoon (EAWM) since the Last Glacial Maximum. We used the difference in the stable oxygen isotopes (Delta d18O) and Mg/Ca-based temperatures (Delta T) of surface-dwelling (G. ruber) and thermocline-dwelling (P. obliquiloculata) planktonic foraminifera and the temperature difference between alkenone- and P. obliquiloculata Mg/Ca-based temperatures to estimate the upper ocean thermal gradient at International Marine Past Global Change Study (IMAGES) core MD01-2390. Estimates of the upper ocean thermal gradient were used to reconstruct mixed layer dynamics. We find that ourDelta d18O estimates are biased by changes in salinity and, thus, do not display a true upper ocean thermal gradient. The Delta T of G. ruber and P. obliquiloculata as well as the alkenone and P. obliquiloculata suggest increased surface water mixing during the late glacial, likely due to enhanced EAWM winds. Surface water mixing was weaker during the late Holocene, indicating a weaker influence of winter monsoon winds. The weakest winter monsoon activity occurred between 6.5 ka and 2.5 ka. Inferred EAWM changes since the Last Glacial Maximum coincide with EAWM changes as recorded in Chinese loess sediments. We find that the intensity of the EAWM and the East Asian summer monsoon show an inverse behavior during the last glacial and deglaciation but covaried during the middle to late Holocene.
    Keywords: -; Age, 14C AMS; Age, 14C calibrated; Age, dated; Age, dated material; Age, dated standard deviation; Age, maximum/old; Age, minimum/young; Calendar age; DEPTH, sediment/rock; Giant piston corer; GPC; IMAGES; IMAGES VII - WEPAMA; International Marine Global Change Study; Laboratory; Laboratory code/label; Marion Dufresne (1995); MD012390; MD01-2390; MD122; South China Sea
    Type: Dataset
    Format: text/tab-separated-values, 75 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2024-05-03
    Description: This dataset contains Mg/Ca and Mg/Ca-derived SST data of sediment core MD161-17 from the Bay of Bengal. For Mg/Ca analysis, 30-40 specimens (〉150 µm) of G. ruber (white) were used. The sample preparation followed Barker et al. (2003) with slight modifications. Mg/Ca ratios were measured using an Agilent Technologies 700 Series ICP-OES with a CETAX ASX-520 autosampler housed at the Faculty of Geosciences, University of Bremen. Mg/Ca values were then used to estimate SSTs using the equation Mg/Ca=0.449exp(0.09*T) (Anand et al., 2003).
    Keywords: AGE; AMS 14C ages; Calculated according to Anand et al. (2008); DEPTH, sediment/rock; Globigerinoides ruber white, Magnesium/Calcium ratio; ICP-OES (Agilent 700); Indian Ocean; MD161/17; MD161-17; Mg/Ca; Mg/Ca-derived temperature; Sea surface temperature, annual mean; SST
    Type: Dataset
    Format: text/tab-separated-values, 210 data points
    Location Call Number Limitation Availability
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