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Climate of the Past An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/cpd-11-3897-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
26 Aug 2015
Review status
This discussion paper is a preprint. It has been under review for the journal Climate of the Past (CP). The manuscript was not accepted for further review after discussion.
The MIS 5 palaeoenvironmental record in the SE Mediterranean coast of the Iberian Peninsula (Río Antas, Almería, Spain)
T. Torres1, J. E. Ortiz1, A. M. Blázquez2, B. Ruiz Zapata3, M. J. Gil3, T. Martín3, and Y. Sánchez-Palencia1 1Laboratory of Biomolecular Stratigraphy, E.T.S.I. Minas y Energía, Universidad Politécnica de Madrid, C/ Ríos Rosas 21, Madrid 28003, Spain
2Environmental and Marine Sciences Research Institute, Catholic University of Valencia C/Guillem de Castro 94, 46003 Valencia, Spain
3Dpto. Geología, Facultad Ciencias, Universidad Alcalá de Henares, Campus Universitario, Universidad Alcalá, 28871 Alcalá de Henares, Madrid, Spain
Abstract. Landwards of a MIS5 bar, a borehole core (SRA) was analyzed to establish the relationship between the lagoonal record and the raised beach deposits in the surroundings of the Antas river mouth and to reconstruct the Pleistocene palaeoenvironmental evolution of the southern Mediterranean coast of the Iberian Peninsula. 63 samples were recovered for amino acid racemization dating, 86 samples for sedimentological and paleontological determination, 37 samples for pollen identification and 54 for biomarker analysis. AAR revealed that the borehole record contains MIS11, MIS6 and MIS5 deposits, the latter extensively represented. During the end of MIS6 and MIS5, a sand barrier developed and created a shallow lagoon with alternating terrestrial inputs this process being common in other Mediterranean realms. Litho- and biofacies allowed the identification of distinct paleoenvironments through time, with the presence of a lagoonal environment alternating with alluvial fan progradation. Biomarkers indicated constant input from terrestrial plants, together with variable development of aquatic macrophytes. The palynological content allowed the reconstruction of the paleoclimatological conditions during MIS6 and 5, with evidence of seven scenarios characterized by alternating arid and relatively humid conditions.

Citation: Torres, T., Ortiz, J. E., Blázquez, A. M., Ruiz Zapata, B., Gil, M. J., Martín, T., and Sánchez-Palencia, Y.: The MIS 5 palaeoenvironmental record in the SE Mediterranean coast of the Iberian Peninsula (Río Antas, Almería, Spain), Clim. Past Discuss., https://doi.org/10.5194/cpd-11-3897-2015, 2015.
T. Torres et al.
T. Torres et al.

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Borehole SRA and the raised beach deposits in the surroundings of the Antas river mouth allowed to reconstruct the Pleistocene palaeoenvironmental evolution of the southern Mediterranean coast of the Iberian Peninsula. The record contains MIS11, MIS6 and MIS5 deposits the latter extensively represented: a sand barrier developed, creating a shallow lagoon with alternating alluvial fan progradation, with evidence of seven scenarios characterized by alternating arid and relatively humid conditions
Borehole SRA and the raised beach deposits in the surroundings of the Antas river mouth allowed...
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