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  • 184-1146A; AGE; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Globigerinoides sacculifer quadrilobatus, δ13C; Globigerinoides sacculifer quadrilobatus, δ18O; Intercore correlation; Joides Resolution; Leg184; Magnesium/Calcium ratio; Mass spectrometer Finnigan MAT 251; Ocean Drilling Program; ODP; Sample code/label; Sea surface temperature; see comment; see reference(s); South China Sea; δ18O, water  (1)
  • 293; AGE; benthic foraminifera isotopes; Center for Marine Environmental Sciences; Cibicidoides spp.; Cibicidoides spp., δ13C; Cibicidoides spp., δ18O; Confidence interval; DEPTH, sediment/rock; GeoB; GeoB9508-5; Geosciences, University of Bremen; Gravity corer (Kiel type); M65/1; MARUM; Meteor (1986); Mg/Ca-based paleotemperatures; North Atlantic Deep Water; Northwestern Africa; SL; Uvigerina spp.  (1)
  • 311; AGE; AWI_Paleo; Calculated from Mg/Ca ratios (Regenberg et al. 2009); Depth, composite; DEPTH, sediment/rock; Event label; GeoB9526-4; GeoB9526-5; Gravity corer (Kiel type); M65/1; Magnesium/Calcium ratio; Meteor (1986); MUC; MultiCorer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Sea surface temperature, annual mean; see reference(s); SL  (1)
Document type
Keywords
Publisher
Years
  • 1
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    Unknown
    Stable isotope records of G. sacculifer-quadrilobatus, Mg/Ca ratios, and Mg/Ca-SST estimates of ODP Hole 184-1146A (2010)
    PANGAEA
    In:  Supplement to: Steinke, Stephan; Groeneveld, Jeroen; Johnstone, Heather J H; Rendle-Bühring, Rebecca (2010): East Asian summer monsoon weakening after 7.5 Ma: Evidence from combined planktonic foraminifera Mg/Ca and delta 0-18 (ODP Site 1146; northern South China Sea). Palaeogeography, Palaeoclimatology, Palaeoecology, 289(1-4), 33-43, https://doi.org/10.1016/j.palaeo.2010.02.007
    Details
    Publication Date: 2024-01-09
    Description: The monsoon system represents one of the basic elements of global atmospheric circulation. Its evolution and variability over long periods of geologic time play a significant role in our understanding of global climate. In this study, we focus on the Late Miocene interval from 10 Ma to 6 Ma, a period of postulated profound ecological and environmental shifts in East and South Asia. The combined approach of measuring planktonic foraminiferal Mg/Ca ratios and stable oxygen isotopes from Ocean Drilling Program (ODP) Site 1146 enabled us to reconstruct temperature independent seawater delta18O (i.e. proxy for sea surface salinity) variations in order to reconstruct the hydrography in the northern South China Sea. Located offshore the Pearl (Zhujiang) River, or its predecessor, the location of ODP Site 1146 is considered to provide a most sensitive record for detecting potential changes in freshwater input/river run-off as a result of changes in continental humidity, and hence changes in East Asian summer monsoon (EASM) climate. Local seawater delta18O reconstructions reveal that monsoon development during the Late Miocene can be regarded as an abrupt weakening in the EASM around 7.5 Ma. We suggest that an EASM weakening was most likely the driving force for decreasing aridity in East and South Asia at 8-6 Ma, leading to widespread ecosystem changes in East and South Asia.
    Keywords: 184-1146A; AGE; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Globigerinoides sacculifer quadrilobatus, δ13C; Globigerinoides sacculifer quadrilobatus, δ18O; Intercore correlation; Joides Resolution; Leg184; Magnesium/Calcium ratio; Mass spectrometer Finnigan MAT 251; Ocean Drilling Program; ODP; Sample code/label; Sea surface temperature; see comment; see reference(s); South China Sea; δ18O, water
    Type: Dataset
    Format: text/tab-separated-values, 1688 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Processed stable isotope (carbon and oxygen) data from epibenthic Cibicidoides spp., including confidence intervals from the last 50.000 years from site GeoB9508-5 off NW Africa (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-25
    Description: To investigate deep ocean heat uptake variability, we measured Mg/Ca ratios of Uvigerina spp. on samples from site GeoB9508-5 off NW Africa. Bottom water temperatures (BWT) were calculated using the equation cited by Roberts et al. (2016) (https://doi.org/10.1073/pnas.1511252113). To estimate the δ18O of seawater, the δ18O of Cibicidoides wuellerstorfi was corrected by a species-specific offset of +0.64 ‰ and the temperature effect was extracted based on our paleotemperature record. No further corrections were made on the δ13C. of Cibicidoides spp. The data was modelled using BACON, and contains raw and processed stable isotope data from epibenthic Cibicidoides spp., including confidence intervals (95%) from the last 50.000 years at the eastern North Atlantic. Standard deviation for BWT was 0.7 °C and 0.07/0.05 for δ18O and δ13C.
    Keywords: 293; AGE; benthic foraminifera isotopes; Center for Marine Environmental Sciences; Cibicidoides spp.; Cibicidoides spp., δ13C; Cibicidoides spp., δ18O; Confidence interval; DEPTH, sediment/rock; GeoB; GeoB9508-5; Geosciences, University of Bremen; Gravity corer (Kiel type); M65/1; MARUM; Meteor (1986); Mg/Ca-based paleotemperatures; North Atlantic Deep Water; Northwestern Africa; SL; Uvigerina spp.
    Type: Dataset
    Format: text/tab-separated-values, 4140 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Unknown
    Sea surface temperature reconstruction based on the Mg/Ca ratio of planktonic foraminifera Globigerinoides ruber pink in sediment profile GeoB9526 (2011)
    PANGAEA
    Details
    Publication Date: 2024-06-25
    Keywords: 311; AGE; AWI_Paleo; Calculated from Mg/Ca ratios (Regenberg et al. 2009); Depth, composite; DEPTH, sediment/rock; Event label; GeoB9526-4; GeoB9526-5; Gravity corer (Kiel type); M65/1; Magnesium/Calcium ratio; Meteor (1986); MUC; MultiCorer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Sea surface temperature, annual mean; see reference(s); SL
    Type: Dataset
    Format: text/tab-separated-values, 561 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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