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  • 101-628A; 151-913; 165-998B; 177-1090; 29-277; 38-336; 71-511; 95-603D; Antarctic Ocean/PLATEAU; Colombia Basin, Caribbean Sea; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Leg101; Leg151; Leg165; Leg177; Leg29; Leg38; Leg71; Leg95; North Atlantic/Norwegian Sea; North Atlantic/RIDGE; North Greenland Sea; Ocean Drilling Program; ODP; South Atlantic/PLATEAU; South Atlantic Ocean  (1)
  • 113-689B; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Foraminifera, benthic δ13C; Foraminifera, benthic δ18O; Joides Resolution; Leg113; Mass spectrometer Finnigan MAT 251; Ocean Drilling Program; ODP; South Atlantic Ocean  (1)
  • 113-689B; DRILL; Drilling/drill rig; Joides Resolution; Leg113; Ocean Drilling Program; ODP; South Atlantic Ocean  (1)
Collection
Keywords
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  • 1
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    (Table 2) Carbon and oxygen isotope data for benthic foraminifers from ODP Hole 113-689B (2000)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 113-689B; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Foraminifera, benthic δ13C; Foraminifera, benthic δ18O; Joides Resolution; Leg113; Mass spectrometer Finnigan MAT 251; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 94 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Carbon and oxygen isotope data for carbonates and benthic foraminifers from ODP Hole 113-689B (2000)
    PANGAEA
    In:  Supplement to: Vonhof, Hubert B; Smit, Jan; Brinkhuis, Henk; Montanari, Alessandro; Nederbragt, Alexandra J (2000): Global cooling accelerated by early late Eocene impacts? Geology, 28(8), 687-690, https://doi.org/10.1130/0091-7613(2000)28%3C687:GCABEL%3E2.0.CO;2
    Details
    Publication Date: 2024-01-09
    Description: At Ocean Drilling Program Site 689 (Maud Rise, Southern Ocean), d18O records of fine-fraction bulk carbonate and benthic foraminifers indicate that accelerated climate cooling took place following at least two closely spaced early late Eocene extraterrestrial impact events. A simultaneous surface-water productivity increase, as interpreted from d13C data, is explained by enhanced water-column mixing due to increased latitudinal temperature gradients. These isotope data appear to be in concert with organic-walled dinoflagellate-cyst records across the same microkrystite-bearing impact-ejecta layer in the mid-latitude Massignano section (central Italy). In particular, the strong abundance increase of Thalassiphora pelagica is interpreted to indicate cooling or increased productivity at Massignano. Because impact-induced cooling processes are active on time scales of a few years at most, the estimated 100 k.y. duration of the cooling event appears to be too long to be explained by impact scenarios alone. This implies that a feedback mechanism, such as a global albedo increase due to extended snow and ice cover, may have sustained impact-induced cooling for a longer time after the impacts.
    Keywords: 113-689B; DRILL; Drilling/drill rig; Joides Resolution; Leg113; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    Global cooling during the Eocene Oligocene Transition (2009)
    PANGAEA
    In:  Supplement to: Liu, Zhonghui; Pagani, Mark; Zinniker, David; DeConto, Robert M; Huber, Matthew; Brinkhuis, Henk; Shah, Sunita R; Leckie, R Mark; Pearson, Ann (2009): Global cooling during the Eocene-Oligocene climate transition. Science, 323(5918), 1187-1190, https://doi.org/10.1126/science.1166368
    Details
    Publication Date: 2024-01-09
    Description: About 34 million years ago, Earth's climate shifted from a relatively ice-free world to one with glacial conditions on Antarctica characterized by substantial ice sheets. How Earth's temperature changed during this climate transition remains poorly understood, and evidence for Northern Hemisphere polar ice is controversial. Here, we report proxy records of sea surface temperatures from multiple ocean localities and show that the high-latitude temperature decrease was substantial and heterogeneous. High-latitude (45 degrees to 70 degrees in both hemispheres) temperatures before the climate transition were ~20°C and cooled an average of ~5°C. Our results, combined with ocean and ice-sheet model simulations and benthic oxygen isotope records, indicate that Northern Hemisphere glaciation was not required to accommodate the magnitude of continental ice growth during this time.
    Keywords: 101-628A; 151-913; 165-998B; 177-1090; 29-277; 38-336; 71-511; 95-603D; Antarctic Ocean/PLATEAU; Colombia Basin, Caribbean Sea; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Leg101; Leg151; Leg165; Leg177; Leg29; Leg38; Leg71; Leg95; North Atlantic/Norwegian Sea; North Atlantic/RIDGE; North Greenland Sea; Ocean Drilling Program; ODP; South Atlantic/PLATEAU; South Atlantic Ocean
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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