Los foraminíferos bentónicos del horizonte glauconítico inferrrior de la Formación "Arcillas de Gibraleón"(depresión del Guadalquivir, SO España)

1. González-Regalado Montero, María Luz
2. Abad de los Santos, Manuel
3. Pendón Martín, José Gabriel
4. Tosquella Angrill, Josep
5. Ruiz Muñoz, Francisco

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Resumen

This paper analyzes the benthic foraminiferal assemblages present in two Upper Tortonian sections belonging to the «Arcillas de Gibraleón» Formation (Guadalquivir Basin) containing a characteristic glauconitic level. The basal samples of this horizon show both shallow-water and epibathyal taxa, a mixture also found in ostracods that may characterize the transition toward deeper conditions. In the upper samples, deep-neritic and epibathyal species are dominant, indicating a moderate-deep environment (150-300 m) in which was deposited most of the glauconitic horizon.

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