Physics – Geophysics
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30m..50c&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 13, pp. 50-1, CiteID 1717, DOI 10.1029/2003GL017001
Physics
Geophysics
11
Marine Geology And Geophysics: Plate Tectonics (8150, 8155, 8157, 8158), Tectonophysics: Continental Margins And Sedimentary Basins (1212), Tectonophysics: Continental Tectonics-General (0905), Tectonophysics: Plate Boundary-General (3040)
Scientific paper
The foreland regional monocline related to the northern Apennines subduction can be followed from the Po Basin to the Friuli region, Italy, at least 240 km north-eastward. In seismic reflection profiles of the Po Basin and of the northern Adriatic Sea, the dip of the regional monocline gradually decreases from about 22° to close to 0°. Pleistocene sediments onlap and pinchout to the northeast. Venice is located on a segment of the active monocline dipping about 1.8° to the southwest. In sediments around the Venice area, the 1.43 Ma limit is in the 960-1500 m depth range, indicating a long term subsidence rate of about 0.7-1.0 mm/yr. Therefore a significant part of the natural component of the town subsidence is related to the north-eastward retreat of the Adriatic subduction. The subduction related downflexure affects the whole of the Po Plain basin and part of the Southern Alps, where it opposes to the general uplift related to orogenesis.
Carminati Eugenio
Doglioni Carlo
Scrocca Davide
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