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  • PANGAEA  (138)
Publikationsart
Schlagwörter
Erscheinungszeitraum
  • 1
    Publikationsdatum: 2023-03-10
    Beschreibung: Element composition of the authigenic sediment fraction of site M45/5_86 from the Northeast Atlantic extracted by weekly reductive leaching. Element concentrations were measured on an iCapQ at Heidelberg University, Germany
    Schlagwort(e): AGE; Aluminium; Barium; Calcium; Cerium; Cobalt; DEPTH, sediment/rock; Dysprosium; Erbium; Europium; Gadolinium; Holmium; Iron; KL; Lanthanum; Lutetium; M45/5_86; M45/5a; Magnesium; Manganese; Meteor (1986); Neodymium; Piston corer (BGR type); Praseodymium; Samarium; South Atlantic Ocean; Strontium; Terbium; Thulium; Titanium; Uranium; Weekly reductive leaching, iCAP Q mass spectrometer; Ytterbium; Yttrium
    Materialart: Dataset
    Format: text/tab-separated-values, 1738 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Publikationsdatum: 2023-03-10
    Beschreibung: Radiocarbon dates of mixed planktic foraminifera of sediment core M45/5_ 86 measured at the LARA laboratory of the University of Bern, Switzerland.
    Schlagwort(e): Age, 14C AMS; Age, 14C calibrated, CALIB 8.2; Age, dated; Age, dated material; Age, dated standard deviation; Calendar age; Calendar age, standard deviation; DEPTH, sediment/rock; KL; Laboratory code/label; M45/5_86; M45/5a; Meteor (1986); Piston corer (BGR type); South Atlantic Ocean
    Materialart: Dataset
    Format: text/tab-separated-values, 24 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Publikationsdatum: 2023-03-10
    Beschreibung: Radiocarbon dates of mixed planktic foraminifera of sediment core M45/5_ 90 measured at the LARA laboratory of the University of Bern, Switzerland.
    Schlagwort(e): Age, 14C AMS; Age, 14C calibrated, CALIB 8.2; Age, dated; Age, dated material; Age, dated standard deviation; Calendar age; Calendar age, standard deviation; DEPTH, sediment/rock; KL; Laboratory code/label; M45/5_90; M45/5a; Meteor (1986); Piston corer (BGR type); South Atlantic Ocean
    Materialart: Dataset
    Format: text/tab-separated-values, 24 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Publikationsdatum: 2023-03-10
    Beschreibung: Element composition of the authigenic sediment fraction of site M45/5_90 from the Northeast Atlantic extracted by weekly reductive leaching. Element concentrations were measured on an iCapQ at Heidelberg University, Germany.
    Schlagwort(e): AGE; Aluminium; Barium; Calcium; Cerium; Cobalt; DEPTH, sediment/rock; Dysprosium; Erbium; Europium; Gadolinium; Holmium; Iron; KL; Lanthanum; Lutetium; M45/5_90; M45/5a; Magnesium; Manganese; Meteor (1986); Neodymium; Piston corer (BGR type); Praseodymium; Samarium; South Atlantic Ocean; Strontium; Terbium; Thulium; Titanium; Uranium; Weekly reductive leaching, iCAP Q mass spectrometer; Ytterbium; Yttrium
    Materialart: Dataset
    Format: text/tab-separated-values, 1569 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Publikationsdatum: 2023-03-14
    Beschreibung: Stable carbon (δ13C) and oxygen isotope (δ18O) were performed on the benthic foraminiferal species Uvigerina spp. The foraminiferal specimens were selected from piston core M78/1-235-1, which was recovered from Tobago Basin (11°36.53'N 60°57.86'W) from 852 m water depth during R/V Meteor Cruise 78/1. Sampling and analytical studies were carried out from 412.5 to 800 cm core depth at 2-4 cm spatial resolution. This dataset extends the existing benthic proxy records (Poggemann et al., 2017; doi:10.1029/2018PA003376) further back in time, now focusing on the glacial time period and the latest fully developed D/O events (~22.7-37 ka BP). The isotope analyses were performed in 2017 and 2019 on a Thermo Scientific MAT 253 mass spectrometer with an automated Kiel IV Carbonate Preparation Device. The proxy data provide stratigraphical information on the Tobago Basin core M78/1-235-1.
    Schlagwort(e): 235-1; AGE; DEPTH, sediment/rock; M78/1; M78/1_235-1; Mass spectrometer, Finnigan, MAT 253; coupled with Carbonate preparation device, Finnigan, KIEL IV; Meteor (1986); N. Tobago; PC; Piston corer; Uvigerina spp., δ13C; Uvigerina spp., δ18O
    Materialart: Dataset
    Format: text/tab-separated-values, 810 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    Publikationsdatum: 2023-03-30
    Beschreibung: Stable carbon (δ13C) and oxygen isotope (δ18O) and Mg/Ca-measurements were performed on the planktonic subsurface-dwelling foraminiferal species Globorotalia truncatulinoides. The foraminiferal specimens were selected from piston core M78/1-235-1, which was recovered from Tobago Basin (11°36.53'N 60°57.86'W) from 852 m water depth during R/V Meteor Cruise 78/1. Sampling and analytical studies were carried out from 630 to 800 cm core depth at 1-2 cm spatial resolution. This dataset extends the existing subsurface proxy records (Reißig et al., 2019; doi:10.1594/PANGAEA.897083) further back in time, now focusing on the time period of the latest fully developed D/O events (~30-37 ka BP). The isotope analyses were performed in 2019 on a Thermo Scientific MAT 253 mass spectrometer with an automated Kiel IV Carbonate Preparation Device. Trace metal analyses were performed on a VARIAN 720-ES Axial ICP-OES, a simultaneous, axial-viewing Inductively Coupled Plasma - Optical Emission Spectrometer coupled to a VARIAN SPS3 sample preparation system. The proxy data provide information on the Tobago Basin subsurface hydrography in relation to Western Boundary Current and North Atlantic Subtropical Gyre interdynamics.
    Schlagwort(e): 235-1; AGE; DEPTH, sediment/rock; Globorotalia truncatulinoides, Aluminium/Calcium ratio; Globorotalia truncatulinoides, Iron/Calcium ratio; Globorotalia truncatulinoides, Magnesium/Calcium ratio; Globorotalia truncatulinoides, Manganese/Calcium ratio; Globorotalia truncatulinoides, δ13C; Globorotalia truncatulinoides, δ18O; M78/1; M78/1_235-1; Mass spectrometer, Finnigan, MAT 253; coupled with Carbonate preparation device, Finnigan, KIEL IV; Meteor (1986); N. Tobago; PC; Piston corer; Reference of data; Sedimentation rate; Sub-surface temperature; δ18O, seawater, reconstructed
    Materialart: Dataset
    Format: text/tab-separated-values, 4588 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Burckel, Pierre; Waelbroeck, Claire; Luo, Yiming; Roche, Didier M; Pichat, Sylvain; Jaccard, Samuel L; Gherardi, Jeanne-Marie; Govin, Aline; Lippold, Jörg; Thil, François (2016): Changes in the geometry and strength of the Atlantic meridional overturning circulation during the last glacial (20–50 ka). Climate of the Past, 12(11), 2061-2075, https://doi.org/10.5194/cp-12-2061-2016
    Publikationsdatum: 2023-01-13
    Beschreibung: We reconstruct the geometry and strength of the Atlantic Meridional Overturning Circulation during Heinrich Stadial 2 and three Greenland interstadials of the 20-50 ka period based on the comparison of new and published sedimentary 231Pa/230Th data with simulated sedimentary 231Pa/230Th. We show that the deep Atlantic circulation during these interstadials was very different from that of the Holocene. Northern-sourced waters likely circulated above 2500 m depth, with a flow rate lower than that of the present day North Atlantic Deep Water (NADW). Southern-sourced deep waters most probably flowed northwards below 4000 m depth into the North Atlantic basin, and then southwards as a return flow between 2500 and 4000 m depth. The flow rate of this southern-sourced deep water was likely larger than that of the modern Antarctic Bottom Water (AABW). Our results further show that during Heinrich Stadial 2, the deep Atlantic was probably directly affected by a southern-sourced water mass below 2500 m depth, while a slow southward flowing water mass originating from the North Atlantic likely influenced depths between 1500 and 2500 m down to the equator.
    Materialart: Dataset
    Format: application/zip, 6 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    Publikationsdatum: 2023-01-30
    Beschreibung: In this dataset we present new high resolution Pb isotope data alongside elemental concentration and ARM (anhysteretic remanant magnetization) data for four core sites in the arctic Mackenzie Delta area as well as the Amundsen Gulf. Cores were recovered with a piston corer during USCGC Healy cruise HLY1302. Cores are characterized by high sedimentation rates of up to 1 m/ka and reach back until 15 ka and therefore the late Heinrich Stadial 1. We also provide radiocarbon ages for sediment cores JPC-19 and JPC-9. With these high resolution records of the deglacial period we are capable to trace meltwater drainage of the decaying Laurentide Ice Sheet with a more or less pronounced Lake Agassiz source. The isotopic compositions were measured with a Neptune Plus at GEOMAR, Kiel, Germany. Also at the GEOMAR, the elemental composition has been measured with an Agilent 7500 cx ICP-MS-Quadrupole. Radiocarbon ages were measured at the LARA laboratory at the University of Bern, Switzerland, with an MICADAS AMS. Dates given here are uncalibrated 14C ages.
    Schlagwort(e): Deglaciation; Lake Agassiz; Lead isotopes; Mackenzie; Meltwater; Meltwater pulse; Pb isotopes; Younger Dryas
    Materialart: Dataset
    Format: application/zip, 10 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    Publikationsdatum: 2023-02-07
    Beschreibung: In this dataset we present high resolution elemental concentrations of major elements from cores in the Mackenzie Delta area and the Amundsen Gulf. Here we present the authigenic as well as the detrital elemental composition. Both components can be used for an environmental reconstruction.
    Schlagwort(e): Aluminium; Aluminium, error, relative; Beaufort Sea; Calcium; Calcium, error, relative; Cerium; Cerium, error, relative; Comment; Core; Cruise/expedition; Deglaciation; DEPTH, sediment/rock; Healy; HLY1302; HLY1302-JPC32; Iron; Iron, error, relative; JPC; JPC32; Jumbo Piston Core; Lake Agassiz; Lead; Lead, error, relative; Lithium; Lithium, error, relative; Mackenzie; Manganese; Manganese, error, relative; Meltwater; Meltwater pulse; Neodymium; Neodymium, error, relative; Phosphorus; Phosphorus, error, relative; Strontium; Strontium, error, relative; Thorium; Thorium, error, relative; Titanium; Titanium, error, relative; Uranium; Uranium, error, relative; Younger Dryas
    Materialart: Dataset
    Format: text/tab-separated-values, 174 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
    Publikationsdatum: 2023-02-07
    Beschreibung: In this dataset we present high resolution elemental concentrations of major elements from cores in the Mackenzie Delta area and the Amundsen Gulf. Here we present the authigenic as well as the detrital elemental composition. Both components can be used for an environmental reconstruction.
    Schlagwort(e): AGE; Aluminium; Aluminium, error, relative; Beaufort Sea; Calcium; Calcium, error, relative; Cerium; Cerium, error, relative; Comment; Core; Cruise/expedition; Deglaciation; DEPTH, sediment/rock; Healy; HLY1302; HLY1302-JPC9; Iron; Iron, error, relative; JPC; JPC9; Jumbo Piston Core; Lake Agassiz; Lead; Lead, error, relative; Lithium; Lithium, error, relative; Mackenzie; Manganese; Manganese, error, relative; Meltwater; Meltwater pulse; Neodymium; Neodymium, error, relative; Phosphorus; Phosphorus, error, relative; Strontium; Strontium, error, relative; Thorium; Thorium, error, relative; Titanium; Titanium, error, relative; Uranium; Uranium, error, relative; Younger Dryas
    Materialart: Dataset
    Format: text/tab-separated-values, 2320 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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