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Authors: Tent-Manclús, J. E.* 
Soria, J. M.* 
Estévez, A.* 
Lancis, C.* 
Caracuel, J. E.* 
Dinarès-Turell, J.* 
Yébenes, A.* 
Title: The Tortonian salinity crisis in the Fortuna Basin (southeastern Spain): Stratigraphic record, tectonic scenario and chronostratigraphy
Issue Date: Jul-2008
Series/Report no.: 7 / 340 (2008)
DOI: 10.1016/j.crte.2008.05.003
Keywords: Betic Cordillera
Tortonian Salinity Crisis
Messinian Salinity Crisis
Trans-Alboran Shear Zone
Fortuna Basin
Subject Classification04. Solid Earth::04.04. Geology::04.04.10. Stratigraphy 
04. Solid Earth::04.05. Geomagnetism::04.05.06. Paleomagnetism 
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics 
Abstract: The Neogene Fortuna and Bajo Segura basins are located on the northeastern end of the Trans-Alborán Shear Zone (TASZ), on the eastern Betic cordillera. The stratigraphic study of the infilling of these basins has shown two major sedimentary discontinuities. The first one, represented by an erosive surface separating open marine marls from an overlying coastal conglomeratic unit, is linked to the onset of the activity along the TASZ, which in this area indicates the beginning of the Abanilla Thrust emplacement. In the Fortuna Basin, the Tortonian salinity crisis, registered over this older first discontinuity, was therefore related to tectonic processes of the eastern portion of the cordillera and consequently would not have an expression in the western basins. The age of the Tortonian Salinity Crisis has been established with nannofossil biostratigraphy as Latest Tortonian at a somewhat lower stratigraphic position than previously recognized. The second sedimentary discontinuity was developed in relation with the known Mediterranean-wide Messinian salinity crisis.
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