Late Pliocene stable oxygen isotope record of the Mediterranean Sea ...

• Main Authors: Combourieu-Nebout, Nathalie, Vergnaud-Grazzini, Colette
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1991
• Subjects: Drilling/drill rig; Sampling by hand; Leg107; Joides Resolution; Ocean Drilling Program ODP; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.743035; https://doi.pangaea.de/10.1594/PANGAEA.743035

Detailed pollen analyses and oxygen isotope records of three foraminiferal species, Globigerina bulloides, Uvigerina peregrina and Cibicides pachyderma, from the Semaforo and Vrica composite sections (Crotone, southern Italy) have been compared to the global climatic changes depicted by late Pliocene-early Pleistocene foraminiferal d18O records of Site 607 in the North Atlantic, and Hole 653A in the Tyrrhenian basin, West Mediterranean. Major overturns in the mid-altitude vegetation are shown near isotopic stages 82, 60, 58 and 50, at about 2.03 Ma, 1.6 Ma and 1.37 Ma according to the Raymo et al. (1989, doi:10.1029/PA004i004p00413) and Ruddiman et al. (1989, doi:10.1029/PA004i004p00353) timescales. At the same dates, glacial 18O maxima either became higher or display step increases in the western Mediterranean or in the open ocean as well. This suggests that size increases of Northern Hemisphere ice sheets were the driving factor for regional or local marine and continental environmental changes within the ... : Supplement to: Combourieu-Nebout, Nathalie; Vergnaud-Grazzini, Colette (1991): Late Pliocene northern hemisphere glaciations: the continental and marine responses in the central Mediterranean. Quaternary Science Reviews, 10(4), 319-334 ...