GEOLOGIC OUTLINE OF THE TUSCANY-LATIUM CONTINENTAL SHELF (NORTH TYRRHENIAN SEA): SOME GEODYNAMIC IMPLICATIONS

An old high-penetration seismic survey of the Tuscany-Latium continental shelf furnished use­ful information on Neogene stratigraphy, structural setting and paleogeography. The seismically penetrated stratigraphic column is composed of five seismic units which may be correlated with the tectonic and...

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Bibliographic Details
Main Author: ROBERTO BARTOLE
Format: Article
Language:English
Published: Milano University Press 2017-08-01
Series:Rivista Italiana di Paleontologia e Stratigrafia
Subjects:
Online Access:https://riviste.unimi.it/index.php/RIPS/article/view/9041
Description
Summary:An old high-penetration seismic survey of the Tuscany-Latium continental shelf furnished use­ful information on Neogene stratigraphy, structural setting and paleogeography. The seismically penetrated stratigraphic column is composed of five seismic units which may be correlated with the tectonic and strati­graphic units of the inner Apennine belt, described in the literature. Three tectonically superposed units consti­tute the deformed substratum, transgressively overlain by two postorogenic sedimentary cycles. From the last diastrophic phases onward, the area underwent a very diversified tectono-sedimentary evolution, which gave origin to different structural landscapes. During the Upper Tortonian (?)-Middle Plio­cene time interval the Elba-Argentario sector was subject to remarkable extensional tectonics, accompanied by important strike-slip components of mostly anti-apennine trend. Analogies with the geodynamic processes that gave rise to the inner belt Neogene basins, lead to inter­pret this sector of the shelf as the penetration path of the Tyrrhenian rifting within the continental area.
ISSN:0035-6883
2039-4942