Transient shoaling, over-deepening and settling of the calcite compensation depth at the eocene-oligocene transition
The major Cenozoic shift from a shallow (∼3-4 km) to deep (∼4.5 km) calcite compensation depth (CCD) occurred at the Eocene-Oligocene Transition (∼34 Ma), suggesting a strong relationship between calcium carbonate (CaCO3) cycling and Antarctic glaciation. However, the linkages between these two even...
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Hauptverfasser: | , , , , , , , , , , , |
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Dokumenttyp: | Article (Journal) |
Sprache: | Englisch |
Veröffentlicht: |
18 May 2023
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In: |
Paleoceanography and paleoclimatology
Year: 2023, Jahrgang: 38, Heft: 6, Pages: 1-15 |
ISSN: | 2572-4525 |
DOI: | 10.1029/2022PA004493 |
Online-Zugang: | kostenfrei kostenfrei ![]() |
Verfasserangaben: | V.E. Taylor, T. Westerhold, S.M. Bohaty, J. Backman, T. Dunkley Jones, K.M. Edgar, K.E. Egan, M. Lyle, H. Pälike, U. Röhl, J. Zachos, and P.A. Wilson |
Zusammenfassung: | The major Cenozoic shift from a shallow (∼3-4 km) to deep (∼4.5 km) calcite compensation depth (CCD) occurred at the Eocene-Oligocene Transition (∼34 Ma), suggesting a strong relationship between calcium carbonate (CaCO3) cycling and Antarctic glaciation. However, the linkages between these two events are debated. Here we present new records of bulk sediment stable isotope and carbonate composition from a depth transect of sites in the low-latitude Pacific Ocean and one site from the South Atlantic Ocean, together with a new benthic foraminiferal stable isotope record (δ13Cb and δ18Ob) from the Pacific where the sedimentary sequence is most expanded. ... |
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Beschreibung: | Gesehen am 22.11.2023 |
Beschreibung: | Online Resource |
ISSN: | 2572-4525 |
DOI: | 10.1029/2022PA004493 |