ASTROCHRONOLOGICAL CALIBRATION OF THE UPPER SERRAVALLIAN/LOWER TORTONIAN SEDIMENTARY SEQUENCE AT TREMITI ISLANDS(ADRIATIC SEA, SOUTHERN ITALY)

Authors

  • FABRIZIO LIRER
  • ANTONIO CARUSO
  • LUCA MARIA FORESI
  • MARIO SPROVIERI
  • SERGIO BONOMO
  • AGATA DI STEFANO
  • ENRICO DI STEFANO
  • SILVIA MARIA IACCARINO
  • GIANFRANCO SALVATORINI
  • RODOLFO SPROVIERI
  • SALVATORE MAZZOLA

DOI:

https://doi.org/10.13130/2039-4942/5473

Keywords:

Abstract

A high resolution cyclostratigraphic study was carried out on a cyclicaly bedded succession of late Middle Miocene deep marine deposits from the Tremiti Islands, Adriatic sea (Italy). Astronomical calibration of the sedimentary cycles provides absolute ages for different calcareous plankton bioevents, widely used for intra Mediterranean correlation, in the interval between 11.12 and 12.60 Ma. The sedimentary record of the S. nicola composite section consists of an alternation of indurated, withish coloured, CaCo3 rich and grey less indurated, CaCo3 poor marly beds, at times replaced by red coloured CaCo3 poor marls. Results of direct correlation between the La 90 (1,1) solution of the insolation curve and the cyclic lithologic patterns occurring in the studied sections, combined with results of spectral methodologies applied on the climate sensitive data (CaCo3 and Globigerinoides) showed that the classic Milankovitch periodicity can be represented through the modulation forcing of the studied sedimentary records.

 

Author Biographies

FABRIZIO LIRER

ANTONIO CARUSO

LUCA MARIA FORESI

MARIO SPROVIERI

SERGIO BONOMO

AGATA DI STEFANO

ENRICO DI STEFANO

SILVIA MARIA IACCARINO

GIANFRANCO SALVATORINI

RODOLFO SPROVIERI

SALVATORE MAZZOLA

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Published

2002-07-31

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Section

Articles