IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-019-12034-7.html
   My bibliography  Save this article

Miocene restriction of the Pacific-North Atlantic throughflow strengthened Atlantic overturning circulation

Author

Listed:
  • Valeriia Kirillova

    (GEOMAR Helmholtz Centre for Ocean Research Kiel)

  • Anne H. Osborne

    (GEOMAR Helmholtz Centre for Ocean Research Kiel)

  • Tjördis Störling

    (GEOMAR Helmholtz Centre for Ocean Research Kiel)

  • Martin Frank

    (GEOMAR Helmholtz Centre for Ocean Research Kiel)

Abstract

Export of warm and salty waters from the Caribbean to the North Atlantic is an essential component of the Atlantic Meridional Overturning Circulation (AMOC). However, there was also an active AMOC during the Miocene, despite evidence for an open Central American Seaway (CAS) that would have allowed low-salinity Pacific waters to enter the Caribbean. To address this apparent contradiction and to constrain the timing of CAS closure we present the first continuous Nd isotope record of intermediate waters in the Florida Strait over the past 12.5 million years. Our results indicate that there was no direct intermediate water mass export from the Caribbean to the Florida Strait between 11.5 and 9.5 Ma, at the same time as a strengthened AMOC. After 9 Ma a strong AMOC was maintained due to a major step in CAS closure and the consequent cessation of low-salinity Pacific waters entering the Caribbean.

Suggested Citation

  • Valeriia Kirillova & Anne H. Osborne & Tjördis Störling & Martin Frank, 2019. "Miocene restriction of the Pacific-North Atlantic throughflow strengthened Atlantic overturning circulation," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12034-7
    DOI: 10.1038/s41467-019-12034-7
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-019-12034-7
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-019-12034-7?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Priyesh Prabhat & Waliur Rahaman & Nambiyathodi Lathika & Mohd Tarique & Ravi Mishra & Meloth Thamban, 2022. "Modern-like deep water circulation in Indian Ocean caused by Central American Seaway closure," Nature Communications, Nature, vol. 13(1), pages 1-13, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12034-7. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.