The sedimentary response of mixed lithoclastic-bioclastic Lower-Pleistocene shallow-marine systems to tides and waves in the south Apennine foredeep (Basilicata, southern Italy). / Longhitano, Sergio G.; Tropeano, Marcello; Chiarella, Domenico; Festa, Vincenzo; Mateu-Vicens, Guillem; Pomar, Luis; Sabato, Luisa; Spalluto, Luigi.

In: Geological Field Trips and Maps, Vol. 13, No. 2.3, 14.12.2021, p. 1-54.

Research output: Contribution to journalArticlepeer-review

E-pub ahead of print
  • Sergio G. Longhitano
  • Marcello Tropeano
  • Domenico Chiarella
  • Vincenzo Festa
  • Guillem Mateu-Vicens
  • Luis Pomar
  • Luisa Sabato
  • Luigi Spalluto

Abstract

This two-day-long field trip is associated with the 10th International Congress of Tidal Sedimentology (Tidalites), Matera, Italy. The “foreland-basin system” of southern Italy preserves mixed lithoclastic-bioclastic deposits mostly accumulated in shallow-marine environments, reproducing types of mixing and degrees of segregation (sensu Chiarella and Longhitano, 2012; Chiarella et al., 2017) that are thought to be indicative of a variety of geological processes, including surficial waves and tides, acting at different time scales. During the Late Pliocene and Early Pleistocene, small open piggyback basins reproduced marginal-marine settings with various hydrodynamic conditions in the wedge-top depozone. Siliciclastic-bioclastic sediments accumulated under the influence of geomorphological elements, such as coastal sheltering, promontories, presence of tectonic highs and local inlets, hosting shoreface to offshore-transition zones, whose cross-stratified facies indicate how sensitive shallow-water mixed systems are to recording surficial waves and weak tidal
currents.
Along the outer-foredeep depozone, carbonate-bioclastic coastal wedges back-stepped over the gently sloping rocky flanks of a structural high, leading to the retrogradational stacking of seismic-scale prograding bodies. Their size and cross-sectional outcrop views apparently resemble those typical of large tidal sand waves developed in wide tide-dominated oceans. In contrast, internal facies features reveal the dominance of surficial waves and gravity-driven avalanches along clinoform depositional slopes, and a very negligible to no tidal influence.
Original languageEnglish
Pages (from-to)1-54
Number of pages54
JournalGeological Field Trips and Maps
Volume13
Issue number2.3
Early online date14 Dec 2021
DOIs
Publication statusE-pub ahead of print - 14 Dec 2021
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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