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Contribution of micropaleontology (especially nannofossils) to reconstruct the Miocene geological evolution of the island of Eivissa (Ibiza, Balearic Islands, Spain)

Yves RANGHEARD, Carla MÜLLER & Michel DURAND-DELGA

en Comptes Rendus Palevol 10 (7) - Pages 537-549

Published on 31 October 2011

Late Burdigalian to Langhian series (nannoplankton zones NN3 to NN5) are overlying unconformably, or are imbricated with Mesozoic strata of different ages. A description of the marine Cala d’Hort formation is given, which is overlain by the brackish to continental Cape Jueu formation. Based on micropaleontological studies, the presence of Aquitanian is doubtful. The interpretation of a “Langhian fore-deep” with “sedimentary klippen” is discussed. A comparison of the sedimentary sequences and biostratigraphy between Eivissa (Ibiza), the eastern Pre-Betics and Majorca is given.


Keywords:

Balearic Islands, Eivissa (Ibiza), Cala d’Hort Formation (Burdigalian-Early Langhian), Cape Jueu Formation (Langhian-?Serravallian), Biostratigraphy, Sedimentary sequences, Tectonic evolution

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