Articles

EVALUATING REPETITION IN SEDIMENTARY SUCCESSIONS USING HIGH RESOLUTION INTEGRATED STRATIGRAPHY: AN EXAMPLE IN THE LOWER PLIOCENE SEQUENCE OF ODP HOLE 975B

AGATA DI STEFANO

Abstract


The Lower Pliocene succession recovered at ODP Hole 975B (Balearic Basin, western Mediterranean) displays a sudden increase in sedimentation rate, in disagreement with the lithological homogeneity that characterizes the succession. The present study, consisting of a high resolution stratigraphic analysis, demonstrates that the succession is affected by repetition. The section has been astrochronologically constrained through integration of detailed biostratigraphy and cyclostratigraphy, which permitted a precise evaluation of the length and duration of the duplicated interval. This result demonstrates the efficacy of integrated stratigraphy in solving wide-range geological problems.

 


Keywords

Balearic Basin; Early Pliocene; Calcareous nannofossil biostratigraphy; Cyclostratigraphy; Repeated stratigraphy

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DOI: https://doi.org/10.13130/2039-4942/5940

NBN: http://nbn.depositolegale.it/urn%3Anbn%3Ait%3Aunimi-15440

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