The UBSU and their potential of applicability in the geological mapping of Quaternary deposits: the example of Tuscany coastal-plan included between Livorno and Piombino (Tuscany, Italy). The Unconformity-Bounded Stratigraphic Units have been suggested as base-units in the geological mapping of Quaternary deposits, for the new Geological Map of Italy, 1:50.000 scale (CARG project). Several difficulties in the subdivision of the Quaternary sedimentary successions, strictly according to ISCC definition of UBSU, have been encountered and, in many cases, this method was extended to less restricted parameters. In this study is exposed the example of the geological mapping of the Tuscany coastal-plain (1:10.000 scale) comprised between Livorno and Piombino and is discussed the applicability of Unconformity-Limited Stratigraphic Units in the subdivision of the Pleistocenic stratigraphic succession. The characteristics of sedimentary successions and the outcrops features brought us to prefer the Allostratigraphic Units (UA) as base-units. The UA, although save a genetic meaning, are characterized by less restrictive constrains and thus represent, in this case, a more operative tool.
|Autori:||Sarti, Giovanni; Guidi, R.|
|Titolo:||ll potenziale di applicabilità delle Unità Stratigrafiche a Limiti Inconformi nella cartografia geologica del Quaternario: l’esempio della fascia costiera compresa fra Livorno e Piombino (Toscana, Italia) [The UBSU and their potential of applicability in the geological mapping of Quaternary deposits: The example of Tuscany coastal-plan included between Livorno and Piombino (Tuscany, Italy)]|
|Anno del prodotto:||2005|
|Appare nelle tipologie:||1.1 Articolo in rivista|