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  • PANGAEA  (15)
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  • 1
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    Paleoceanographic record since 13kyr BP of sediment core LaPAS-KF02 (2013)
    PANGAEA
    In:  Supplement to: Pivel, Maria Alejandra G; Santarosa, Ana Cláudia Aoki; Toledo, Felipe Antonio de L; Costa, Karen Badaraco (2013): The Holocene onset in the southwestern South Atlantic. Palaeogeography, Palaeoclimatology, Palaeoecology, 374, 164-172, https://doi.org/10.1016/j.palaeo.2013.01.014
    Details
    Publication Date: 2023-12-14
    Description: In this paper we present a paleoceanographic reconstruction of the southwestern South Atlantic for the past 13 kyr based on faunal and isotopic analysis of planktonic foraminifera from a high-resolution core retrieved at the South Brazil Bight continental slope. Our record indicates that oceanographic changes in the southwestern South Atlantic during the onset of the Holocene were comparable in strength to those that occurred during the Younger Dryas. Full interglacial conditions started abruptly after 8.2 kyr BP with a sharp change in faunal composition and surface hydrography (SST and SSS). Part of the observed events may be explained in terms of changes in thermohaline circulation while the other part suggests a dominant role of winds. Our data indicate that during the Early Holocene upwelling was significantly strengthened in the South Brazil Bight promoting high productivity and preventing the establishment of the typically interglacial menardiiform species. In general terms, oceanographic changes recorded by core KF02 occurred in synchrony with Antarctica's climate.
    Keywords: CDRILL; Core drilling; LaPAS-KF02; South Atlantic
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 2
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    Planktonic foraminifera record and SST reconstruction for the last 130 ka in the Western South Atlantic (2015)
    PANGAEA
    In:  Supplement to: Petró, Sandro Monticelli; Pivel, Maria Alejandra G; Coimbra, Joao Carlos; Mizusaki, A M P (2016): Paleoceanographic changes through the last 130 ka in the Western South Atlantic based on planktonic foraminifera. Revista Brasileira de Paleontologia, 19(1), 3-14, https://doi.org/10.4072/rbp.2016.1.01
    Details
    Publication Date: 2023-12-14
    Description: This work reconstructs Late Quaternary paleoceanographic changes in the western South Atlantic Ocean based on sedimentary core GL-77, recovered from the lower continental slope in the Campos basin, offshore SE Brazil. The studied interval comprises the last 130 ka. Changes in sea surface temperature (SST) and paleoproductivity were estimated using the total planktonic foraminiferal fauna and oxygen isotope analyses. The age model was based on the oxygen isotope record, biostratigraphic datums and AMS 14C dating. It was observed that the Pleistocene/Holocene transition occurs within Globorotalia menardii Biozone Y, and is not coeval with the base of Biozone Z. The range between summer and winter SST estimates is larger during the glacial period compared to interglacials. Three peaks of low SST around 70, 50 - 45 and 20 ka coincided with periods of enhanced SE trade winds. Despite faunal differences between the last interglacial (MIS 5e) and the Holocene, our SST estimates suggest that SSTs did not differ significantly between these intervals.
    Keywords: GC; GL-77; Gravity corer; South Atlantic Ocean
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 3
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    (Appendix B) Relative abundances of planktonic foraminifera in sediment core GL-77 (2015)
    PANGAEA
    Details
    Publication Date: 2023-12-14
    Keywords: Candeina nitida; DEPTH, sediment/rock; Foraminifera, benthic; Foraminifera, planktic indeterminata; GC; GL-77; Globigerina bulloides; Globigerina digitata; Globigerina falconensis; Globigerina humilis; Globigerina quinqueloba; Globigerina rubescens; Globigerinella calida; Globigerinella siphonifera; Globigerinita glutinata; Globigerinita pumilio; Globigerinita uvula; Globigerinoides conglobatus; Globigerinoides ruber pink; Globigerinoides ruber white; Globigerinoides sacculifer sac; Globigerinoides sacculifer wo sac; Globorotalia anfracta; Globorotalia crassaformis; Globorotalia hirsuta; Globorotalia inflata; Globorotalia menardii; Globorotalia menardii flexuosa; Globorotalia scitula; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globorotalia tumida; Globoturborotalita tenella; Gravity corer; Hastigerina digitata; Neogloboquadrina dutertrei; Neogloboquadrina pachyderma dextral; Neogloboquadrina pachyderma sinistral; Orbulina universa; Pulleniatina obliquiloculata; Sample code/label; South Atlantic Ocean; Sphaeroidinella dehiscens; Tenuitella iota
    Type: Dataset
    Format: text/tab-separated-values, 2340 data points
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  • 4
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    (Table 1) Age determination of sediment core LaPAS-KF02 (2013)
    PANGAEA
    Details
    Publication Date: 2023-12-14
    Keywords: Age, 14C AMS; Age, 14C calibrated; Age, 14C milieu/reservoir corrected; Age, dated; Age, dated material; Age, dated standard deviation; Calendar age; Calendar age, standard deviation; CDRILL; Core drilling; DEPTH, sediment/rock; LaPAS-KF02; South Atlantic
    Type: Dataset
    Format: text/tab-separated-values, 54 data points
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  • 5
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    Sea surface temperature and salinity reconstructions for sediment core LaPAS-KF02 (2013)
    PANGAEA
    Details
    Publication Date: 2023-12-14
    Keywords: AGE; Artificial Neural Network Technique (ANN) (Malmgren and Nordlund, 1997); Calculated; CDRILL; Core drilling; Counting 〉150 µm fraction; DEPTH, sediment/rock; Foraminifera, benthic; Globigerinella calida; Globigerinoides ruber white, δ18O; Globorotalia inflata; Globorotalia menardii group; Globorotalia truncatulinoides dextral; LaPAS-KF02; Mass spectrometer Finnigan MAT 252; Neogloboquadrina dutertrei; Neogloboquadrina pachyderma dextral; Ostracoda; Sea surface salinity; Sea surface temperature, annual mean; Sea surface temperature, annual mean, standard deviation; Sea surface temperature, summer; Sea surface temperature, summer, standard deviation; Sea surface temperature, winter; Sea surface temperature, winter, standard deviation; South Atlantic; δ18O, ice volume effect; δ18O, reconstructed; δ18O, water
    Type: Dataset
    Format: text/tab-separated-values, 2222 data points
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    DATA PANGAEA
  • 6
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    (Appendix A) Stable oxygen isotope record and SST reconstruction for sediment core GL-77 (2015)
    PANGAEA
    Details
    Publication Date: 2023-12-14
    Keywords: DEPTH, sediment/rock; Foraminifera, planktic δ18O; GC; GL-77; Gravity corer; Sample code/label; Sea surface temperature, annual mean; Sea surface temperature, annual mean, standard deviation; Sea surface temperature, summer; Sea surface temperature, summer, standard deviation; Sea surface temperature, winter; Sea surface temperature, winter, standard deviation; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 480 data points
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  • 7
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    Planktonic Foraminifera assemblages from sediment core SIS-188 (2024)
    PANGAEA
    Details
    Publication Date: 2024-03-07
    Description: Planktonic Foraminifera assemblages register the several climate changes that occurred during the Quaternary. These assemblage variations (frequently abundance reversals) are used to establish bioecozones. Since climate changes are neither synchronic nor spatially homogenous, the purpose is to assess the applicability of the bioecozonations proposed for the Santos and Campos basins in the northern portion of the Pelotas Basin (South Brazilian Continental Margin). The studied grain size was 〉0.150 mm.
    Keywords: Beella digitata; Candeina nitida; Counting, foraminifera, planktic; DEPTH, sediment/rock; Foraminifera, planktic indeterminata; Globigerina bulloides; Globigerina falconensis; Globigerinella calida; Globigerinella siphonifera; Globigerinita glutinata; Globigerinoides conglobatus; Globigerinoides ruber pink; Globigerinoides ruber white; Globigerinoides tenellus; Globoconella inflata; Globorotalia crassaformis; Globorotalia hirsuta; Globorotalia menardii; Globorotalia scitula; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globorotalia tumida; Globoturborotalita rubescens; Late Quaternary; Neogloboquadrina dutertrei; Neogloboquadrina incompta; Neogloboquadrina pachyderma; Orbulina universa; PC; Piston corer; Planktonic foraminifera; Pulleniatina obliquiloculata; Sample ID; SIS-188; Trilobatus sacculifer; Trilobatus trilobus; Turborotalita quinqueloba; western South Atlantic
    Type: Dataset
    Format: text/tab-separated-values, 690 data points
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    DATA PANGAEA
  • 8
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    Planktonic Foraminifera assemblages from sediment core SAT-048A (2020)
    PANGAEA
    Details
    Publication Date: 2024-03-07
    Description: Planktonic Foraminifera assemblages register the several climate changes that occurred during the Quaternary. These assemblage variations (frequently abundance reversals) are used to establish bioecozones. Since climate changes are neither synchronic nor spatially homogenous, the purpose is to assess the applicability of the bioecozonations proposed for the Santos and Campos basins in the northern portion of the Pelotas Basin (South Brazilian Continental Margin). The sediment core was collected during campaign 1-7 of Fugro Brasil for the National Agency of Petroleum. The studied grain size was 〉0.150 mm.
    Keywords: 1-7 Fugro Brasil; Candeina nitida; Counting, foraminifera, planktic; DEPTH, sediment/rock; Foraminifera, planktic indeterminata; Globigerina bulloides; Globigerina falconensis; Globigerinella calida; Globigerinella siphonifera; Globigerinita glutinata; Globigerinoides conglobatus; Globigerinoides ruber pink; Globigerinoides ruber white; Globigerinoides tenellus; Globoconella inflata; Globorotalia crassaformis; Globorotalia hirsuta; Globorotalia menardii; Globorotalia scitula; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globorotalia tumida; Globoturborotalita rubescens; Late Quaternary; Neogloboquadrina dutertrei; Neogloboquadrina incompta; Neogloboquadrina pachyderma; Orbulina universa; PC; Piston corer; Planktonic foraminifera; Pulleniatina obliquiloculata; Sample ID; SAT-048A; Trilobatus sacculifer; Trilobatus trilobus; Turborotalita humilis; Turborotalita quinqueloba; western South Atlantic
    Type: Dataset
    Format: text/tab-separated-values, 1620 data points
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  • 9
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    Planktonic foraminifera of sediment core SIS-249 in the western South Atlantic (2023)
    PANGAEA
    Details
    Publication Date: 2024-02-15
    Description: The datasets utilized in this study encompass relative abundances of planktonic foraminifera and stable isotope data retrieved from sediment core SIS-249 in the western South Atlantic, spanning the 110-30 thousand-year interval. Planktonic foraminifera counts were examined at the Laboratório de Microfósseis Calcários, Universidade Federal do Rio Grande do Sul. The analysis focused on specimens larger than 0.150 mm, with a minimum of 300 specimens counted. The resulting data were employed to reconstruct historical patterns of sea surface fertilization, stratification, and calcium carbonate dissolution in the western South Atlantic throughout the 110-30 thousand-year period.
    Keywords: AGE; Beella digitata; Candeina nitida; Counting 〉150 µm fraction; DEPTH, sediment/rock; Dissolution; Foraminifera, planktic indeterminata; Globigerina bulloides; Globigerina falconensis; Globigerinella calida; Globigerinella siphonifera; Globigerinita glutinata; Globigerinoides conglobatus; Globigerinoides ruber albus; Globigerinoides ruber ruber; Globorotalia crassaformis; Globorotalia cultrata; Globorotalia hirsuta; Globorotalia inflata; Globorotalia neoflexuosa; Globorotalia scitula; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globorotalia tumida; Globoturborotalita rubescens; Globoturborotalita tenella; Late Quaternary; Neogloboquadrina dutertrei; Neogloboquadrina incompta; Neogloboquadrina pachyderma; Orbulina bilobata; Orbulina universa; PC; Piston corer; Planktonic foraminifera; Pulleniatina obliquiloculata; SIS-249; South Brazilian Continental Margin; Stratification; Trilobatus sacculifer; Trilobatus trilobus quadrilobatus; Trilobatus trilobus trilobus; Turborotalita quinqueloba; western South Atlantic
    Type: Dataset
    Format: text/tab-separated-values, 1440 data points
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  • 10
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    Stable isotope record of planktic foraminifera of sediment core SIS-249 in the western South Atlantic (2023)
    PANGAEA
    Details
    Publication Date: 2024-02-15
    Description: The datasets utilized in this study encompass relative abundances of planktonic foraminifera and stable isotope data retrieved from sediment core SIS-249 in the western South Atlantic, spanning the 110-30 thousand-year interval. For the oxygen stable isotope analysis, a minimum of 10 specimens each from Globigerinoides ruber and Globorotalia inflata were picked. These specimens were selected from the fraction larger than 0.250 mm and analyzed at the University of São Paulo. The resulting data were employed to reconstruct historical patterns of sea surface fertilization, stratification, and calcium carbonate dissolution in the western South Atlantic throughout the 110-30 thousand-year period.
    Keywords: AGE; DEPTH, sediment/rock; Dissolution; Foraminifera, planktic δ13C; Foraminifera, planktic δ18O; Late Quaternary; PC; Piston corer; Planktonic foraminifera; SIS-249; South Brazilian Continental Margin; Stratification; western South Atlantic
    Type: Dataset
    Format: text/tab-separated-values, 87 data points
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    DATA PANGAEA
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