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  • 113-689; 113-689B; 113-690; 113-690B; 113-690C; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg113; Ocean Drilling Program; ODP; South Atlantic Ocean  (1)
  • 113-689; 113-690; 32-305; 62-463; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Leg113; Leg32; Leg62; North Pacific/CONT RISE; North Pacific/SEAMOUNT; Ocean Drilling Program; ODP; South Atlantic Ocean  (1)
  • 119-744B; AGE; Cibicidoides spp., δ13C; Cibicidoides spp., δ18O; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Indian Ocean; Joides Resolution; Leg119; Mass spectrometer VG Micromass 602; Nannofossil zone; Nuttallides spp., δ13C; Nuttallides spp., δ18O; Ocean Drilling Program; ODP; Planktic foraminifera zone; Sample code/label  (1)
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  • 1
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    Strontium isotope data from DSDP Sites 32-305 and 62-463 and ODP Sites 113-689 and 113-690 (1997)
    PANGAEA
    In:  Supplement to: Barrera, Enriqueta C; Savin, Samuel M; Thomas, Ellen; Jones, Charles E (1997): Evidence for thermohaline-circulation reversals controlled by sea-level change in the latest Cretaceous. Geology, 25(8), 715-718, https://doi.org/10.1130/0091-7613(1997)025%3C0715:EFTCRC%3E2.3.CO;2
    Details
    Publikationsdatum: 2024-01-09
    Beschreibung: Fluctuations in oxygen (d18O) and carbon (d13C) isotope values of benthic foraminiferal calcite from the tropical Pacific and Southern Oceans indicate rapid reversals in the dominant mode and direction of the thermohaline circulation during a 1 m.y. interval (71-70 Ma) in the Maastrichtian. At the onset of this change, benthic foraminiferal d18O values increased and were highest in low-latitude Pacific Ocean waters, whereas benthic and planktic foraminiferal d13C values decreased and benthic values were lowest in the Southern Ocean. Subsequently, benthic foraminiferal d18O values in the Indo-Pacific decreased, and benthic and planktic d13C values increased globally. These isotopic patterns suggest that cool intermediate-depth waters, derived from high-latitude regions, penetrated temporarily to the tropics. The low benthic d13C values at the Southern Ocean sites, however, suggest that these cool waters may have been derived from high northern rather than high southern latitudes. Correlation with eustatic sea-level curves suggests that sea-level change was the most likely mechanism to change the circulation and/or source(s) of intermediate-depth waters. We thus propose that oceanic circulation during the latest Cretaceous was vigorous and that competing sources of intermediate- and deep-water formation, linked to changes in climate and sea level, may have alternated in importance.
    Schlagwort(e): 113-689; 113-690; 32-305; 62-463; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Leg113; Leg32; Leg62; North Pacific/CONT RISE; North Pacific/SEAMOUNT; Ocean Drilling Program; ODP; South Atlantic Ocean
    Materialart: Dataset
    Format: application/zip, 4 datasets
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 2
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    Upper Cretaceous-Paleogene stratigraphy of ODP Sites 113-689 and 113-690 (1990)
    PANGAEA
    In:  Supplement to: Thomas, Ellen; Barrera, Enriqueta C; Hamilton, Norman; Huber, Brian T; Kennett, James P; O'Connell, Suzanne B; Pospichal, James J; Spieß, Volkhard; Stott, Lowell D; Wei, Wuchang; Wise, Sherwood W (1990): Upper Cretaceous-Paleogene stratigraphy of Sites 689 and 690, Maud Rise (Antarctica). In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 901-914, https://doi.org/10.2973/odp.proc.sr.113.194.1990
    Details
    Publikationsdatum: 2024-01-09
    Beschreibung: This contribution summarizes the biostratigraphy of planktonic foraminifers, calcareous nannofossils, and benthic foraminifers, in combination with the magnetostratigraphy, carbon and oxygen isotope stratigraphy of benthic foraminifers, and CaCO3 stratigraphy for the Maestrichtian through Paleogene calcareous sequences recovered at Sites 689 and 690 on Maud Rise (at about 65°S, eastern Weddell Sea, Antarctica). These data represent the southernmost calciumcarbonate record available for that interval, and thus extend the biostratigraphic and isotopic database to higher latitudes. Sites 689 and 690 form the southernmost anchor of a north-south transect through the Atlantic Ocean for Paleogene biostratigraphy and chemostratigraphy.
    Schlagwort(e): 113-689; 113-689B; 113-690; 113-690B; 113-690C; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg113; Ocean Drilling Program; ODP; South Atlantic Ocean
    Materialart: Dataset
    Format: application/zip, 8 datasets
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATEN PANGAEA
  • 3
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    (Table 1) Oxygen and carbon isotope ratios of benthic foraminifera from ODP Hole 119-744B (1991)
    PANGAEA
    Details
    Publikationsdatum: 2024-01-09
    Schlagwort(e): 119-744B; AGE; Cibicidoides spp., δ13C; Cibicidoides spp., δ18O; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Indian Ocean; Joides Resolution; Leg119; Mass spectrometer VG Micromass 602; Nannofossil zone; Nuttallides spp., δ13C; Nuttallides spp., δ18O; Ocean Drilling Program; ODP; Planktic foraminifera zone; Sample code/label
    Materialart: Dataset
    Format: text/tab-separated-values, 119 data points
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATEN PANGAEA
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