https://orcid.org/0000-0003-2386-1156
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ABSTRACT
Bagnoli-Coroglio is a Site of National Interest (SNI) facing the Pozzuoli Bay that has been the place of an industrial activity for more than a century (1854-1985). The modern coastal geology of this area results from the recent evolution of an antecedent volcanic landscape that originated after a caldera collapse following the eruption of Neapolitan Yellow Tuff (NYT) of Campi Flegrei (15 ka). After the NYT eruption, a shallow marine depression formed within the caldera collapse area that underwent progressive filling-up, due to volcaniclastic sediment input from the caldera borders, within a semi-enclosed source-to-sink system.
The integrated interpretation of the Digital Terrain Model (DTM) of the Bagnoli-Coroglio area and the high resolution reflection seismic profiles acquired off the Pozzuoli Bay suggests that the present-day coastal plain of Bagnoli-Fuorigrotta and conterminous continental shelf represent the latest infilling phase of the annular depression (caldera ‘collar’) between the structural border of the NYT caldera and the inner caldera resurgent dome.
The stratigraphic architecture and morpho-bathymetry of the Bagnoli inner shelf provide a record of the complex interplay between eustatic sea level changes, volcano-tectonic (ground/seafloor) deformation, and supply of volcaniclastic sediments, with associated coastline shifts over the last millennia.
Acknowledgements
Swath bathymetry, sub-bottom Chirp and gravity core data used in this study were acquired by the ISMAR (formerly IAMC)-CNR, Naples, on board of the R/V Urania, and Minerva Uno during a series of oceanographic cruises between 2002 and 2017. The last, high-resolution multibeam dataset covering the area of the Bagnoli SNI (2017) was recorded using Reson Seabat 7125, onboard the Research Catamaran ‘Idrosfera’ within the frame of the research project ABBaCo (Environmental Restoration of the Bagnoli-Coroglio National Site of Interest).
Uniboom (IKB-Seistec) reflection seismic data were acquired in 2013 on board of the Catamaran ‘Idrosfera’ during Oceanographic cruise Seistec_13, in cooperation with Geomega Ltd., Budapest, Hungary and the Eötvös University of Budapest, Hungary.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Notes on contributors
M. Sacchi is a researcher at ISMAR-CNR, Napoli. His research has focused on sedimentology of siliciclastic-volcaniclastic environments, with interest in seismic and sequence stratigraphy of marine and continental strata.
F. Matano is a researcher at ISMARCNR, Napoli. His recent research activity is dedicated to geomorphological analysis, geostructural mapping and interpretation of remote sensing datasets in Geographic Information Systems (GIS).
F. Molisso is a technologist at ISMAR-CNR, Napoli. She has experience in stratigraphy, sedimentology of siliciclastic rocks and facies analysis of sedimentary environments.
S. Passaro is a researcher at ISMAR-CNR, Napoli. He focuses his research on marine geomorphology, marine volcanism and geodynamic evolution of volcanic continental margins.
M. Caccavale is a researcher at ISMAR-CNR, Napoli. He is a seismologist with experience in processing of seismic reflection data and database analysis in Geographic Information Systems (GIS) environment.
G. Di Martino is a researcher at ISMAR-CNR, Napoli. Her expertise is related to morpho-bathymetric data acquisition and processing dedicated to geological and thematic mapping.
A. Guarino is a technician at ISMAR-CNR, Napoli. His expertise is related to laboratory analysis of marine and continental deposits and processing of sedimentological data.
S. Innangi is a researcher at ISMAR-CNR, Napoli. Her research work is focused on backscatter data processing for habitat mapping, based on automatic (or semi-automatic) image analysis in Geographic Information Systems (GIS) environment.
S. Tamburrino is a researcher at at ISMAR-CNR, Napoli. Her research focuses on chemical analysis of volcanic products and envudies (geochemistry).
R. Tonielli is a technologist at ISMAR-CNR, Napoli. His expertise is related to seismic data processing and map production in Geographic Information Systems (GIS) environment.
M. Vallefuoco is a technologist at ISMAR-CNR, Napoli. He has experience in integrated stratigraphic analysis with a special interest for geochronology of upper Quaternary marine deposits.