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Friedrich, Oliver; Schmiedl, Gerhard; Erlenkeuser, Helmut (2006): Stable carbon and oxygen isotope composition of Late Cretaceous benthic foraminifera from the southern South Atlantic [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.676680, Supplement to: Friedrich, O et al. (2006): Stable isotope composition of Late Cretaceous benthic foraminifera from the southern South Atlantic: Biological and environmental effects. Marine Micropaleontology, 58(2), 135-157, https://doi.org/10.1016/j.marmicro.2005.10.005

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Abstract:
The stable carbon and oxygen isotope composition of different benthic foraminiferal species of the latest Campanian and earliest Maastrichtian from Ocean Drilling Project Hole 690C (Weddell Sea, southern South Atlantic, ~1800 m paleowater depth) have been investigated. The total range of measured isotope values of all samples exceeds ~4 per mil for delta 13C and 1.1 per mil for delta 18O. Carbon isotope values of proposed deep infaunal species are generally similar or only slightly lower when compared to proposed epifaunal to shallow infaunal species. Interspecific differences vary between samples probably reflecting temporal changes in organic carbon fluxes to the sea floor. Constantly lower delta 13C values for Pullenia marssoni and Pullenia reussi suggest the deepest habitat for these species. The strong depletion of delta 13C values by up to 3 per mil within lenticulinids may be attributed to a deep infaunal microhabitat, strong vital effects, or different feeding strategy when compared to other species or modern lenticulinids. The mean delta 18O values reveal a strong separation of epifaunal to shallow infaunal and deep infaunal species. Epifaunal to shallow infaunal species are characterized by low delta 18O values, deep infaunal species by higher values. This result possibly reflects lower metabolic rates and longer life cycles of deep infaunal species or the operating of a pore water [CO3]2- effect on the benthic foraminiferal stable isotopes.
Pyramidina szajnochae shows an enrichment of oxygen isotopes with test size comprising a total of 0.6 per mil between 250 and 1250 µm shell size. Although delta 13C lacks a corresponding trend these data likely represent the presence of changes in metabolic rates during ontogenesis. These results demonstrate the general applicability of multi-species stable isotope measurements of pristine Cretaceous benthic foraminifera to reconstruct past microhabitats and to evaluate biological and environmental effects on the stable isotope composition.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -65.160000 * Longitude: 1.204800
Date/Time Start: 1987-01-21T07:00:00 * Date/Time End: 1987-01-23T20:30:00
Event(s):
113-690C * Latitude: -65.160000 * Longitude: 1.204800 * Date/Time Start: 1987-01-21T07:00:00 * Date/Time End: 1987-01-23T20:30:00 * Elevation: -2925.0 m * Penetration: 321.2 m * Recovery: 177.19 m * Location: South Atlantic Ocean * Campaign: Leg113 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 23 cores; 200.6 m cored; 0 m drilled; 88.3 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
15 datasets

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Datasets listed in this publication series

  1. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Bolivina incrassata from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676662
  2. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Cibicidoides voltziana from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676663
  3. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Ellipsodella gracillima from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676664
  4. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Gavelinella beccariiformis from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676665
  5. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Gyroidinoides lenticulus from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676666
  6. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Gyroidinoides umbilicatus from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676668
  7. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Lenticulina cf. adenalensis from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676670
  8. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Lenticulina rotulata from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676671
  9. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Paralabamina hillebrandti from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676672
  10. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Pullenia marssoni from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676675
  11. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Praebulimina pusilla from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676673
  12. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Pullenia reussi from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676676
  13. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Pyramidina szajnochae from Late Cretaceous sediments of ODP Hole Pyramidina, South Atlantic. https://doi.org/10.1594/PANGAEA.676677
  14. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 2) Stable carbon and oxygen isotope composition of various test length of Pyramidina szajnochae from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676679
  15. Friedrich, O; Schmiedl, G; Erlenkeuser, H (2006): (Table 1) Stable carbon and oxygen isotope composition of Praebulimina ventricosa from Late Cretaceous sediments of ODP Hole 113-690C, South Atlantic. https://doi.org/10.1594/PANGAEA.676674