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  • 2020-2024  (42)
  • 2020-2022  (5)
  • 2005-2009  (10)
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Keywords
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Language
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Carbon dioxide release from the North Pacific abyss during the last deglaciation (2007)
    [s.l.] : Nature Publishing Group
    Nature 449 (2007), S. 890-893 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Atmospheric carbon dioxide concentrations were significantly lower during glacial periods than during intervening interglacial periods, but the mechanisms responsible for this difference remain uncertain. Many recent explanations call on greater carbon storage in a poorly ventilated deep ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature06227
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    North Pacific seasonality and the glaciation of North America 2.7 million years ago (2005)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 433 (2005), S. 821-825 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the context of gradual Cenozoic cooling, the timing of the onset of significant Northern Hemisphere glaciation 2.7 million years ago is consistent with Milankovitch's orbital theory, which posited that ice sheets grow when polar summertime insolation and temperature are low. However, the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature03332
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    Paper (German National Licenses)
    Fulltext
  • 3
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    δ13C and δ18O isotopes of Globigerina bulloides from ODP Site 177-1090 (2021)
    PANGAEA
    Details
    Publication Date: 2023-07-20
    Description: Over the last deglaciation there were two transient intervals of pronounced atmospheric CO2 rise; Heinrich Stadial 1 (17.5-15 kyr) and the Younger Dryas (12.9-11.5 kyr). Leading hypotheses accounting for the increased accumulation of CO2 in the atmosphere at these times invoke deep ocean carbon being released from the Southern Ocean and an associated decline in the global efficiency of the biological carbon pump. From core ODP1090 we present new G. bulloidies carbon and oxygen isotope records. These stable isotopic analyses were performed on a Thermo Finnigan MAT253 coupled with a Kiel IV carbonate device at the University of Southampton.
    Keywords: 177-1090; AGE; Alkenones; boron isotopes; Calculated; COMPCORE; Composite Core; deglacial; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Globigerina bulloides, δ13C; Globigerina bulloides, δ13C/12C ratio, standard deviation; Globigerina bulloides, δ18O; Globigerina bulloides, δ18O/16O ratio, standard deviation; Joides Resolution; Leg177; Normalized; ODP 1090; South Atlantic Ocean; Sub-Antarctic; TAN1106-28
    Type: Dataset
    Format: text/tab-separated-values, 174 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    δ11B isotopes, CO2 release and pH analysis from sedeiment core TAN1106/28 (2021)
    PANGAEA
    Details
    Publication Date: 2023-07-20
    Description: Over the last deglaciation there were two transient intervals of pronounced atmospheric CO2 rise; Heinrich Stadial 1 (17.5-15 kyr) and the Younger Dryas (12.9-11.5 kyr). Leading hypotheses accounting for the increased accumulation of CO2 in the atmosphere at these times invoke deep ocean carbon being released from the Southern Ocean and an associated decline in the global efficiency of the biological carbon pump. From core TAN1106-28 we present new G. bulloidies boron isotope and Mg/Ca derived sea surface pH and pCO2 concentrations. Trace element analysis was performed on a ThermoScientific Element 2 ICP-MS at the University of Southampton using the method described by Henehan et al. (2015). Isotopic analysis was performed on a ThermoScientific Neptune MC-ICPMS at the University of Southampton following the methods of Foster (2008) and Foster et al. (2013).
    Keywords: AGE; Age, standard deviation; Alkenones; boron isotopes; Calculated; Carbon dioxide, partial pressure; deglacial; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DEPTH, water; Magnesium/Calcium ratio; MC-ICP-MS Thermo-Finnigan Neptune; ODP 1090; pH; Size fraction; Sub-Antarctic; TAN1106; TAN1106/28; TAN1106-28; Tangaroa; δ11B; δ11B, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 342 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    δ11B isotopes, CO2 release and pH analysis from ODP Site 177-1090 (2021)
    PANGAEA
    Details
    Publication Date: 2023-07-20
    Description: Over the last deglaciation there were two transient intervals of pronounced atmospheric CO2 rise; Heinrich Stadial 1 (17.5-15 kyr) and the Younger Dryas (12.9-11.5 kyr). Leading hypotheses accounting for the increased accumulation of CO2 in the atmosphere at these times invoke deep ocean carbon being released from the Southern Ocean and an associated decline in the global efficiency of the biological carbon pump. From core ODP1090 we present new G. bulloidies boron isotope and Mg/Ca derived sea surface pH and pCO2 concentrations. Trace element analysis was performed on a ThermoScientific Element 2 ICP-MS at the University of Southampton using the method described by Henehan et al. (2015). Isotopic analysis was performed on a ThermoScientific Neptune MC-ICPMS at the University of Southampton following the methods of Foster (2008; doi:10.1016/j.epsl.2008.04.015) and Foster et al. (2013; doi:10.1016/j.chemgeo.2013.08.027).
    Keywords: 177-1090; AGE; Age, standard deviation; Alkenones; boron isotopes; Calculated; Carbon dioxide, partial pressure; COMPCORE; Composite Core; deglacial; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DEPTH, water; Joides Resolution; Leg177; Magnesium/Calcium ratio; MC-ICP-MS Thermo-Finnigan Neptune; ODP 1090; pH; Size fraction; South Atlantic Ocean; Sub-Antarctic; TAN1106-28; δ11B; δ11B, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 414 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Alkenone determination from sediment core TAN1106/28 (2021)
    PANGAEA
    Details
    Publication Date: 2023-07-20
    Description: Over the last deglaciation there were two transient intervals of pronounced atmospheric CO2 rise; Heinrich Stadial 1 (17.5-15 kyr) and the Younger Dryas (12.9-11.5 kyr). Leading hypotheses accounting for the increased accumulation of CO2 in the atmosphere at these times invoke deep ocean carbon being released from the Southern Ocean and an associated decline in the global efficiency of the biological carbon pump. From core TAN1106-28 we present new deglacial alkenone and n-alkane records. Analysis and characterization of total lipid content were performed at Institut de Ciències del Mar in Barcelona following published methods (Villanueva et al., 1997; doi:10.1016/S0021-9673(96)00669-3, Calvo et al., 2003; doi:10.1016/S0021-9673(03)00119-5, Kornilova and Rosell-Melé, 2003; doi:10.1016/S0146-6380(03)00155-4) on an Agilent 7890 Gas Chromatograph with a flame ionization detector equipped with a HP-1 capillary column (60 m, 0.25 mm I.D. and 0.25 µm film thickness).
    Keywords: AGE; Alkenone, C37 per unit sediment mass; Alkenones; boron isotopes; deglacial; DEPTH, sediment/rock; Gas Chromatograph, Agilent 7890; n-Alkane, flux; ODP 1090; Sub-Antarctic; TAN1106; TAN1106/28; TAN1106-28; Tangaroa
    Type: Dataset
    Format: text/tab-separated-values, 52 data points
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    DATA PANGAEA
  • 7
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    Down-core measurements of 231Pa/230Th for sediment core PS75/100-4 (2021)
    PANGAEA
    Details
    Publication Date: 2023-10-28
    Keywords: AGE; Age, standard error; ANT-XXVI/2; AWI_Paleo; Barium; Barium, biogenic; Barium, lithogenic; Comment; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; KL; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Piston corer (BGR type); Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Protactinium-231; Protactinium-231, error, relative; Protactinium-231/Thorium-230 excess, decay-corrected; Protactinium-231/Thorium-230 excess, decay-corrected, standard deviation; PS75/100-4; PS75 BIPOMAC; South Pacific Ocean; SPP1158; Thorium-230; Thorium-230, error, relative; Thorium-230 excess, decay-corrected; Thorium-230 excess production; Thorium-232; Thorium-232, error, relative; Uranium-234; Uranium-234, error, relative; Uranium-238; Uranium-238, error, relative; Water mass
    Type: Dataset
    Format: text/tab-separated-values, 436 data points
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    DATA PANGAEA
  • 8
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    Down-core measurements of 231Pa/230Th for sediment core SO213/2_76-2 (2021)
    PANGAEA
    Details
    Publication Date: 2023-10-28
    Keywords: AGE; Age, standard error; AWI_Paleo; Barium; Barium, biogenic; Barium, lithogenic; Comment; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; KL; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Piston corer (BGR type); Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Protactinium-231; Protactinium-231, error, relative; Protactinium-231/Thorium-230 excess, decay-corrected; Protactinium-231/Thorium-230 excess, decay-corrected, standard deviation; SO213/2; SO213/2_76-2; Sonne; SOPATRA; South Pacific Ocean; SPP1158; Thorium-230; Thorium-230, error, relative; Thorium-230 excess, decay-corrected; Thorium-230 excess production; Thorium-232; Thorium-232, error, relative; Uranium-234; Uranium-234, error, relative; Uranium-238; Uranium-238, error, relative; Water mass
    Type: Dataset
    Format: text/tab-separated-values, 292 data points
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    DATA PANGAEA
  • 9
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    Down-core measurements of 231Pa/230Th for sediment core SO213/2_82-1 (2021)
    PANGAEA
    Details
    Publication Date: 2023-10-28
    Keywords: AGE; Age, standard error; AWI_Paleo; Barium; Barium, biogenic; Barium, lithogenic; Comment; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Gravity corer (Kiel type); Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Protactinium-231; Protactinium-231, error, relative; Protactinium-231/Thorium-230 excess, decay-corrected; Protactinium-231/Thorium-230 excess, decay-corrected, standard deviation; SL; SO213/2; SO213/2_82-1; Sonne; SOPATRA; South Pacific Ocean; SPP1158; Thorium-230; Thorium-230, error, relative; Thorium-230 excess, decay-corrected; Thorium-230 excess production; Thorium-232; Thorium-232, error, relative; Uranium-234; Uranium-234, error, relative; Uranium-238; Uranium-238, error, relative; Water mass
    Type: Dataset
    Format: text/tab-separated-values, 513 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 10
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    Down-core measurements of 231Pa/230Th for sediment core PS75/104-1 (2021)
    PANGAEA
    Details
    Publication Date: 2023-10-28
    Keywords: AGE; Age, standard error; ANT-XXVI/2; AWI_Paleo; Barium; Barium, biogenic; Barium, lithogenic; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; KL; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Piston corer (BGR type); Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Protactinium-231; Protactinium-231, error, relative; Protactinium-231/Thorium-230 excess, decay-corrected; Protactinium-231/Thorium-230 excess, decay-corrected, standard deviation; PS75/104-1; PS75 BIPOMAC; South Pacific Ocean; SPP1158; Thorium-230; Thorium-230, error, relative; Thorium-230 excess, decay-corrected; Thorium-230 excess production; Thorium-232; Thorium-232, error, relative; Uranium-234; Uranium-234, error, relative; Uranium-238; Uranium-238, error, relative; Water mass
    Type: Dataset
    Format: text/tab-separated-values, 188 data points
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    DATA PANGAEA
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