Primary objective of this work is the high resolution geophysical study of the Miramare Riviera (Gulf of Trieste, Northern Adriatic Sea). We used two different sub-bottom profiling equipments and methodologies: CHIRP and BOOMER. The single-channel seismic reflection dataset was calibrated by four boreholes for depth conversion. Average seismic velocities of shallow sediments vary in the range between 1930 and 2020 m/s. Post-plyocenic sediments exhibit flat, sub-horizontal depositional trend and thickness varying in the range between 5 and 25 m. They are locally eroded by buried paleo-channels and they lay on Flysch bedrock characterized by highly irregular morphology. Top of Flysch is disrupted by several faults: the most prominent one exhibit maximum slip around 10 m and runs sub-parallel to the coastline.
Characterization of marine sediments through high resolution seismic investigations in the Gulf of Trieste. High resolution seismic study of the Miramare-Barcola offshore: preliminary results
ROMEO R;
2006-01-01
Abstract
Primary objective of this work is the high resolution geophysical study of the Miramare Riviera (Gulf of Trieste, Northern Adriatic Sea). We used two different sub-bottom profiling equipments and methodologies: CHIRP and BOOMER. The single-channel seismic reflection dataset was calibrated by four boreholes for depth conversion. Average seismic velocities of shallow sediments vary in the range between 1930 and 2020 m/s. Post-plyocenic sediments exhibit flat, sub-horizontal depositional trend and thickness varying in the range between 5 and 25 m. They are locally eroded by buried paleo-channels and they lay on Flysch bedrock characterized by highly irregular morphology. Top of Flysch is disrupted by several faults: the most prominent one exhibit maximum slip around 10 m and runs sub-parallel to the coastline.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
