Biostratigraphy and sedimentary evolution of Late Miocene and Pliocene continental deposits of the Granada Basin (southern Spain)

Authors

  • ANTONIO GARCÍA-ALIX,

  • RAEF MINWER-BARAKAT,

  • JOSÉ M. MARTÍN,

  • ELVIRA MARTÍN SUÁREZ,

  • MATTHIJS FREUDENTHAL


Antonio García-Alix [agalix@ugr.es], Raef Minwer-Barakat [rminwer@ugr.es], José M. Martín [jmmartin@ugr.es] and Elvira Martín Suárez [elvirams@ugr.es], Departamento de Estratigrafía y Paleontología, Universidad de Granada, Avda. Fuentenueva s/n, 18002 Granada, Spain; Matthijs Freudenthal [mfreuden@ugr.es], Departamento de Estratigrafía y Paleontología, Universidad de Granada, Avda. Fuentenueva s/n, 18002 Granada, Spain and Nationaal Natuurhistorisch Museum, PO Box 9517, 2300 RA Leiden, The Netherlands; manuscript received on 2/03/07; and manuscript accepted on 10/01/08.

Abstract

The Late Miocene and Pliocene continental sediments in the Granada Basin (southern Spain) have yielded large amounts of fossil small mammals in 37 localities from 11 sections. The aim of this paper is to integrate faunistic, stratigraphic, and sedimentary criteria to unravel the geological history of the continental infilling of the basin.

The palaeontological study has led to a detailed biozonation on the basis of rodents, which helps to correlate in detail the different sedimentary units found in the basin, and to follow the changes of the different sedimentary systems and their palaeogeographical evolution through time.

Combination of the proposed biostratigraphy and the reinterpretation of the magnetostratigraphic analyses of the Barranco del Purcal section allows us to assign an absolute age slightly older than 5.23 Ma to the Turolian–Ruscinian boundary (MN13-MN14).

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