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The Gibraltar Corridor: Watergate of the Messinian Salinity Crisis

Research output: Contribution to journalReview article

  • Wout Krijgsman
  • Walter Capella
  • Dirk Simon
  • Frits J. Hilgen
  • Tanja J. Kouwenhoven
  • Paul Th Meijer
  • Francisco J. Sierro
  • Maria A. Tulbure
  • Bas C.J. van den Berg
  • Marlies van der Schee
  • Rachel Flecker
Original languageEnglish
Pages (from-to)238-246
Number of pages9
JournalMarine Geology
Volume403
Early online date20 Jun 2018
DOIs
DateAccepted/In press - 17 Jun 2018
DateE-pub ahead of print - 20 Jun 2018
DatePublished (current) - 1 Sep 2018

Abstract

The existence and evolution of a Messinian salt giant in the Mediterranean Sea has caused much debate in the marine science community. Especially the suggestion that the Mediterranean was a deep desiccated basin during the Messinian Salinity Crisis (MSC, 5.97–5.33 Ma), triggered by a temporal disconnection from the global ocean, made it a well-known crisis beyond the scientific boundaries. Approximately ~50 years after this provocative statement, it remained unknown which Mediterranean–Atlantic seaway delivered the 5–6% of the global ocean's salt into the Mediterranean basin. Here, we review the changes in Mediterranean-Atlantic connectivity throughout the late Miocene in order to locate, date and quantify the missing Messinian gateway that provided the salt water inflow during the MSC. We conclude that all the known pre-MSC gateways through southern Spain and northern Morocco were closed, leaving the “Gibraltar Corridor” at its Messinian configuration as the sole candidate. We consider the possibility of longer and narrower straits existing at depth below the present Gibraltar region, and using strait dynamic theory we calculate its dimensions during the Messinian based on the salinity changes in the Mediterranean. A marine Messinian gateway through the Gibraltar Corridor is in agreement with growing evidence that Atlantic waters reached the Mediterranean Sea during all three stages of the MSC.

    Research areas

  • Atlantic, Evaporites, Gateways, Mediterranean, Miocene, Paleoceanography

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  • Full-text PDF (accepted author manuscript)

    Rights statement: This is the author accepted manuscript (AAM). The final published version (version of record) is available online via Elsevier at https://www.sciencedirect.com/science/article/pii/S002532271830104X . Please refer to any applicable terms of use of the publisher.

    Accepted author manuscript, 4 MB, PDF document

    Licence: CC BY-NC-ND

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