Continental deposits, magnetostratigraphy and vertebrate paleontology, late Neogene of Eastern Spain

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Abstract

Eleven sections have been sampled for magnetostratigraphy in the fossil mammal-productive late Neogene basins of eastern Spain. The characteristic direction of magnetization was determined through progressive thermal and alternating field demagnetization. It was possible to correlate the magnetozones from the various sections to the GPTS as well as to the fossil MN zones within the sediment. The MN zone boundaries based on this correlation are as follows: MN 11/12 ⋍ 8.1 my; MN 12/13 ⋍ 6 my; MN 13/14 ⋍ 4.9 my; MN 14/15 = 4.18 my; MN 15/16 = 3.58 my. New fossil lists are presented for the Fuente del Viso and Loma del Castillo faunas in the Cabriel Basin.

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    Most of them were focused on calibrating the absolute age of both the most significant paleontological sites and the boundaries of the MN zones. As far as we know, ten magnetostratigraphic sections (La Roma, Masada Ruea, Masada del Valle, La Gloria, El Bunker, Orrios, Villalba Alta Río, Villalba Alta, Escorihuela, and Concud) had been carried out in the northern Teruel Basin (Krijgsman, 1996; Krijgsman et al., 1996; Opdyke et al., 1997; Garcés et al., 1999; Kruvier et al., 2003). Recently, our research group carried out a new magnetostratigraphic section (Masada Cociero) located north close to the city of Teruel, which has allowed to establish the chronological age of the most recent paleontological site of the basin (RTC, Ezquerro et al., 2016).

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