EVALUATING REPETITION IN SEDIMENTARY SUCCESSIONS USING HIGH RESOLUTION INTEGRATED STRATIGRAPHY: AN EXAMPLE IN THE LOWER PLIOCENE SEQUENCE OF ODP HOLE 975B
DOI:
https://doi.org/10.13130/2039-4942/5940Keywords:
Balearic Basin, Early Pliocene, Calcareous nannofossil biostratigraphy, Cyclostratigraphy, Repeated stratigraphyAbstract
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.
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