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  • 2020-2024  (62)
  • 2000-2004  (39)
  • 1995-1999  (9)
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  • 1
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    Unknown
    An astronomically dated record of Earth's climate and its predictability over the last 66 million years (2021)
    AAAS
    Details
    Publication Date: 2023-10-26
    Description: Much of our understanding of Earth's past climate comes from the measurement of oxygen and carbon isotope variations in deep-sea benthic foraminifera. Yet, long intervals in existing records lack the temporal resolution and age control needed to thoroughly categorize climate states of the Cenozoic era and to study their dynamics. Here, we present a new, highly resolved, astronomically dated, continuous composite of benthic foraminifer isotope records developed in our laboratories. Four climate states-Hothouse, Warmhouse, Coolhouse, Icehouse-are identified on the basis of their distinctive response to astronomical forcing depending on greenhouse gas concentrations and polar ice sheet volume. Statistical analysis of the nonlinear behavior encoded in our record reveals the key role that polar ice volume plays in the predictability of Cenozoic climate dynamics.
    Description: Published
    Description: 1383–1387
    Description: 5A. Ricerche polari e paleoclima
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
    Location Call Number Limitation Availability
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    PAPER (OA)
  • 2
    Electronic Resource
    Electronic Resource
    Regional climate shifts caused by gradual global cooling in the Pliocene epoch (2004)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 429 (2004), S. 263-267 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Earth's climate has undergone a global transition over the past four million years, from warm conditions with global surface temperatures about 3 °C warmer than today, smaller ice sheets and higher sea levels to the current cooler conditions. Tectonic changes and their influence ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature02567
    Location Call Number Limitation Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Unknown
    An astronomically dated record of Earth’s climate and its predictability over the last 66 Million Years (2020)
    AAAS (American Association for the Advancement of Science)
    Details
    Publication Date: 2023-02-08
    Description: Much of our understanding of Earth’s past climate comes from the measurement of oxygen and carbon isotope variations in deep-sea benthic foraminifera. Yet, long intervals in existing records lack the temporal resolution and age control needed to thoroughly categorize climate states of the Cenozoic era and to study their dynamics. Here, we present a new, highly resolved, astronomically dated, continuous composite of benthic foraminifer isotope records developed in our laboratories. Four climate states—Hothouse, Warmhouse, Coolhouse, Icehouse—are identified on the basis of their distinctive response to astronomical forcing depending on greenhouse gas concentrations and polar ice sheet volume. Statistical analysis of the nonlinear behavior encoded in our record reveals the key role that polar ice volume plays in the predictability of Cenozoic climate dynamics.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Format: other
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 4
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    Unknown
    Biogenic barium flux in the eastern equatorial Pacific Ocean (2020)
    PANGAEA
    Details
    Publication Date: 2023-02-08
    Description: We present the first regional-scale records of biogenic Barium (xsBa) fluxes in the Panama basin of the eastern-equatorial margin of the Pacific Ocean in order to assess xsBa as a paleoproductivity proxy. Measurements of xsBa from thirteen cores that range in water depths from about 700 ¬¬to 3000 m show an increase in 230Th normalized xsBa mass accumulation rates (MARs) with increasing water depth during both Marine Oxygen Isotope Stages (MIS) 1 and 2. The correlation of xsBa MARs with depth are strong despite differences in bulk sediment mass accumulation rates and differing degrees of sediment redistribution. We interpret the increasing xsBa with water depth as likely due to the continued decomposition and remineralization of falling and/or resuspended biogenic particles. xsBa does not seem to be affected by diagenetic sulfate reduction in most of the cores. Calculated estimates of xsBa preservation in the sediment pile are high and fluctuate between 45% - 52% throughout the last 25 kyr. Although xsBa fluxes can be a robust indicator of paleoproductivity, caution is needed if a) there is evidence of sulfate reduction in sediments being analyzed, and b) one is trying to quantify differences in paleoproductivity among sites that are located at different depths in the water column.
    Keywords: 230Th; AGE; Aluminium; authigenic Uranium (Uauth); Barite dissolution; Barium; Barium excess; Biogenic Barium (xsBa); DEPTH, sediment/rock; Eastern Equatorial Pacific Ocean; Event label; Latitude of event; Longitude of event; Melville; MUC; MultiCorer; MV1014; MV1014-01-1MC; MV1014-01-7MC; MV1014-02-16MC; MV1014-02-9MC; paleoproductivity; Panama Basin
    Type: Dataset
    Format: text/tab-separated-values, 124 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Unknown
    Particle fluxes of NAP_trap (2003)
    PANGAEA
    Details
    Publication Date: 2023-08-15
    Keywords: Aluminium, flux; Calculated; Calculated, see reference(s); Carbon, inorganic, particulate, flux; Carbon, organic, particulate, flux; DEPTH, water; Duration, number of days; Element analyser CHN, LECO; Instrumental neutron activation analysis (INAA) (Reimann et al., 1998); Iron, flux; NAP; NAP_trap; Opal, flux; Titanium, flux; Total, flux per year; Trap, sediment; TRAPS
    Type: Dataset
    Format: text/tab-separated-values, 8 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Unknown
    Particle fluxes of HAP-4_trap (2003)
    PANGAEA
    Details
    Publication Date: 2023-08-15
    Keywords: Aluminium, flux; Calculated; Calculated, see reference(s); Carbon, inorganic, particulate, flux; Carbon, organic, particulate, flux; DEPTH, water; Duration, number of days; Element analyser CHN, LECO; HAP-4; HAP-4_trap; Instrumental neutron activation analysis (INAA) (Reimann et al., 1998); Iron, flux; Opal, flux; Titanium, flux; Total, flux per year; Trap, sediment; TRAPS
    Type: Dataset
    Format: text/tab-separated-values, 8 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Unknown
    Particle fluxes of MFZ-11_trap (2003)
    PANGAEA
    Details
    Publication Date: 2023-08-15
    Keywords: Aluminium, flux; Calculated; Calculated, see reference(s); Carbon, inorganic, particulate, flux; Carbon, organic, particulate, flux; DEPTH, water; Duration, number of days; Element analyser CHN, LECO; Instrumental neutron activation analysis (INAA) (Reimann et al., 1998); Iron, flux; MFZ-11; MFZ-11_trap; Opal, flux; Titanium, flux; Total, flux per year; Trap, sediment; TRAPS
    Type: Dataset
    Format: text/tab-separated-values, 8 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    Unknown
    Particle fluxes of G_trap (2003)
    PANGAEA
    Details
    Publication Date: 2023-08-15
    Keywords: Aluminium, flux; Calculated; Calculated, see reference(s); Carbon, inorganic, particulate, flux; Carbon, organic, particulate, flux; DEPTH, water; Duration, number of days; Element analyser CHN, LECO; G; G_trap; Instrumental neutron activation analysis (INAA) (Reimann et al., 1998); Opal, flux; Total, flux per year; Trap, sediment; TRAPS
    Type: Dataset
    Format: text/tab-separated-values, 6 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    Unknown
    Particle fluxes of NS_trap (2003)
    PANGAEA
    Details
    Publication Date: 2023-08-15
    Keywords: Aluminium, flux; Calculated; Calculated, see reference(s); Carbon, inorganic, particulate, flux; Carbon, organic, particulate, flux; DEPTH, water; Duration, number of days; Element analyser CHN, LECO; Instrumental neutron activation analysis (INAA) (Reimann et al., 1998); NS; NS_trap; Opal, flux; Titanium, flux; Total, flux per year; Trap, sediment; TRAPS
    Type: Dataset
    Format: text/tab-separated-values, 7 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 10
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    Unknown
    Particle fluxes of MW_trap (2003)
    PANGAEA
    Details
    Publication Date: 2023-08-15
    Keywords: Aluminium, flux; Calculated; Calculated, see reference(s); Carbon, inorganic, particulate, flux; Carbon, organic, particulate, flux; DEPTH, water; Duration, number of days; Element analyser CHN, LECO; Instrumental neutron activation analysis (INAA) (Reimann et al., 1998); MW; MW_trap; Opal, flux; Titanium, flux; Total, flux per year; Trap, sediment; TRAPS
    Type: Dataset
    Format: text/tab-separated-values, 7 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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