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  • 161-976C; 161-976D; Alboran Sea; DRILL; Drilling/drill rig; Joides Resolution; Leg161; Ocean Drilling Program; ODP  (1)
  • 181-1123B; Age, difference; Age model; Age model, Berggren et al (1995) BKSA95; Age model, optional; Chronozone; Depth, composite revised; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg181; Ocean Drilling Program; ODP; Sample code/label; South Pacific Ocean  (1)
  • 2000-2004  (2)
Document type
Keywords
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  • 2000-2004  (2)
Year
  • 1
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    Radiocarbon dates of sediments from ODP Site 161-976 (2002)
    PANGAEA
    In:  Supplement to: Combourieu-Nebout, Nathalie; Turon, Jean-Louis; Zahn, Rainer; Capotondi, Lucilla; Londeix, Laurent; Pahnke, Katharina (2002): Enhanced aridity and atmospheric high-pressure stability over the western Mediterranean during the North Atlantic cold events of the past 50 k.y. Geology, 30(10), 863-866, https://doi.org/10.1130/0091-7613(2002)030%3C0863:EAAAHP%3E2.0.CO;2
    Details
    Publication Date: 2024-01-09
    Description: Multiproxy paleoenvironmental records (pollen and planktonic isotope) from Ocean Drilling Program Site 976 (Alboran Sea) document rapid ocean and climate variations during the last glacial that follow the Dansgaard-Oeschger climate oscillations seen in the Greenland ice core records, thus suggesting a close link of the Mediterranean climate swings with North Atlantic climates. Continental conditions rapidly oscillated through cold-arid and warm-wet conditions in the course of stadial-interstadial climate jumps. At the time of Heinrich events, i.e., maximum meltwater flux to the North Atlantic, western Mediterranean marine microflora and microfauna show rapid cooling correlated with increasing continental dryness. Enhanced aridity conceivably points to prolonged wintertime stability of atmospheric high-pressure systems over the southwestern Mediterranean in conjunction with cooling of the North Atlantic.
    Keywords: 161-976C; 161-976D; Alboran Sea; DRILL; Drilling/drill rig; Joides Resolution; Leg161; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    (Table 1) Age comparison between the GPTS and ODP Site 181-1123 age model for each chron base within the Middle Miocene section (2003)
    PANGAEA
    In:  Supplement to: Hall, Ian R; McCave, I Nick; Zahn, Rainer; Carter, Lionel; Knutz, Paul Cornils; Weedon, Graham P (2003): Paleocurrent reconstruction of the deep Pacific inflow during the middle Miocene: Reflections of East Antarctic Ice Sheet growth. Paleoceanography, 18(2), 1040, https://doi.org/10.1029/2002PA000817
    Details
    Publication Date: 2024-05-18
    Description: Today the deep western boundary current (DWBC) east of New Zealand is the most important route for deep water entering the Pacific Ocean. Large-scale changes in deep water circulation patterns are thought to have been associated with the development of the East Antarctic Ice Sheet (EAIS) close to the main source of bottom water for the DWBC. Here we reconstruct the changing speed of the southwest Pacific DWBC during the middle Miocene from ~15.5-12.5 Ma, a period of significant global ice accumulation associated with EAIS growth. Sortable silt mean grain sizes from Ocean Drilling Program Site 1123 reveal variability in the speed of the Pacific inflow on the timescale of the 41 kyr orbital obliquity cycle. Similar orbital period flow changes have recently been demonstrated for the Pleistocene epoch. Collectively, these observations suggest that a strong coupling between changes in the speed of the deep Pacific inflow and high-latitude climate forcing may have been a persistent feature of the global thermohaline circulation system for at least the past 15 Myr. Furthermore, long-term changes in flow speed suggest an intensification of the DWBC under an inferred increase in Southern Component Water production. This occurred at the same time as decreasing Tethyan outflow and major EAIS growth between ~15.5 and 13.5 Ma. These results provide evidence that a major component of the deep thermohaline circulation was associated with the middle Miocene growth of the EAIS and support the view that this time interval represents an important step in the development of the Neogene icehouse climate.
    Keywords: 181-1123B; Age, difference; Age model; Age model, Berggren et al (1995) BKSA95; Age model, optional; Chronozone; Depth, composite revised; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg181; Ocean Drilling Program; ODP; Sample code/label; South Pacific Ocean
    Type: Dataset
    Format: text/tab-separated-values, 96 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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