Next Article in Journal
Glacier–Permafrost Interaction at a Thrust Moraine Complex in the Glacier Forefield Muragl, Swiss Alps
Next Article in Special Issue
Unique Geology and Climbing: A Literature Review
Previous Article in Journal
Integrated Geodetic and Hydrographic Measurements of the Yacht Port for Nautical Charts and Dynamic Spatial Presentation
Previous Article in Special Issue
Previous, Current, and Future Trends in Research into Earthquake Precursors in Geofluids
Open AccessArticle

Sand Ridges on Rocky Coastal Platforms as Markers of Tsunami Impact: A Multi-Disciplinary Analysis along the Ionian Coast of Southern Apulia (Italy)

1
Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento, Complesso Ecotekne, 73100 Lecce, Italy
2
CEDAD (Centro di Fisica Applicata, Datazione e Diagnostica), Dipartimento di Matematica e Fisica “Ennio de Giorgi”, Università del Salento, Via per Arnesano, 73100 Lecce, Italy
3
Polo Scientifico e Tecnologico Magna Grecia, Università degli Studi di Bari, Via Alcide de Gasperi, 74123 Taranto, Italy
4
Dipartimento di Scienze della Terra e Geoambientali, Università di Bari, Via E. Orabona 4, 70125 Bari, Italy
5
Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, P.za di Porta San Donato 1, 40126 Bologna, Italy
*
Author to whom correspondence should be addressed.
Geosciences 2020, 10(6), 204; https://doi.org/10.3390/geosciences10060204
Received: 28 April 2020 / Revised: 15 May 2020 / Accepted: 20 May 2020 / Published: 27 May 2020
(This article belongs to the Special Issue 2020: A 10 Years Journey-Advances in Geosciences)
Along the Ionian coast of Southern Apulia, a sand ridge has been detected at the inner border of a wide, low-elevated rocky platform. A multi-disciplinary analysis was carried out to define the main geomorphological and sedimentological features of this dune-like coastal deposit, to clarify its nature as well as to obtain chronological constraints for its development. The geomorphological survey reveals that the sand ridge is about 40–60 m wide, reaching a maximum elevation of 3.9 m above m.s.l., whereas its thickness can be estimated between 1.0 and 2.8 m. The sand ridge is in some places associated with large-size boulders. Grain size analysis shows that it is made up of poorly sorted coarse-medium sands with a gravelly fraction, without significant sedimentary structures, as confirmed by Ground Penetrating Radar survey. The micro and macro-faunal assemblage sampled in the sand ridge can be related to shallow-water environments with Posidonia oceanica meadows occurring offshore. The development of the studied sand ridge can be ascribed to a tsunami event able to mix up very coarse bioclastic sands placed at submerged platforms, storm beach deposits covering the low-elevated coastal platform in patches, and possibly older tsunami deposits. Accelerator Mass Spectometry radiocarbon age determinations on mollusc shells sampled from the sand ridge span from 929–1168 AD to 1707–1950 AD and cluster around the 18th–19th centuries, suggesting a possible association with a recent tsunami event. Data reported in the Euro-Mediterranean Tsunami Catalogue would indicate as the most likely event that one of the 25th April 1836, produced by a strong earthquake with its epicenter near Rossano village, on the Ionian coast of the Calabria region. View Full-Text
Keywords: tsunami deposit; sand ridge; southern Apulia; Italy tsunami deposit; sand ridge; southern Apulia; Italy
Show Figures

Figure 1

MDPI and ACS Style

Sansò, P.; Calcagnile, L.; Fago, P.; Mazzotta, S.; Negri, S.; Quarta, G.; Romagnoli, C.; Vitale, A.; Mastronuzzi, G. Sand Ridges on Rocky Coastal Platforms as Markers of Tsunami Impact: A Multi-Disciplinary Analysis along the Ionian Coast of Southern Apulia (Italy). Geosciences 2020, 10, 204.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop