<p>The &#8220;Livorno-Empoli&#8221; fault represents the westernmost segment of one a major transversal structure of the inner Northern Apennines the so-called &#8220;Livorno-Sillaro Line&#8221; a regional structure described in the literature, for a long time (e.g., Ghelardoni, 1967; Bortolotti, 1966; Bernini et al., 1991; Cantini et al., 2001; Pascucci et al., 2007; Rosenbaum, Agostinetti, 2015). In the frame of our ongoing studies,&#160; in this contribution, we will focus on the short term history of this regional fault. A new stratigraphic-sequence frame for the late-Quaternary deposits has been developed by using the different facies associations as defined through a large surface database analysis. Moreover, a correlation has been done between subsoil deposits and the outcropping sediments on the hilly areas (Livorno, Pisa, and Cerbaie hills) surrounding the Arno valley.</p><p>Additionally, a morphotectonic analysis of the hydrographic networks and relief distribution has been done the Lidar data (DTM), supplied by the Tuscany Region, at the 2 m and 10 m of resolution. Specifically, the river system is particularly sensitive to deformation processes. The fluvial streams are in fact characterized by low geomorphological inertia and, therefore, by response times of a few hundred thousand years to the tectonic processes ongoing.</p><p>As a result of the integrated multidisciplinary analysis, it was possible to highlight the evidence of middle Pleistocene-Holocene tectonics of the &#8220;Livorno-Empoli Fault&#8221; until now neglected by the literature.</p><p>&#160;</p><p>&#160;</p><p>References</p><p>&#160;</p><p>Ghelardoni, R.&#160; (1967) Osservazioni sulla tettonica trasversale dell<strong>&#8217;</strong>Appennino Settentrionale. Bollettino della Societa Geologica Italiana, 84, 1<strong>&#8211;</strong>14.</p><p>Bortolotti V. (1966) &#8211; La tettonica trasversale dell&#8217;Appennino &#8211; La linea Livorno-Sillaro. Bollettino della Societ&#224; Geologica Italiana, Vol.85, pp. 529-540, 3 ff., 1 tav.</p><p>Bernini, M., Boccaletti, M., Moratti, G., Papani, G., Sani, F., & Torelli, L. (1991). Episodi compressivi neogenico-quaternari nell<strong>&#8217;</strong>area estensionale tirrenica. Dati in mare e a terra. Memorie della Societ&#224; Geologica Italiana <strong>1990</strong>, 45, 577<strong>&#8211;</strong>589.</p><p>Cantini P., Testa G., Zanchetta G. & Cavallini R. The Plio-Pleistocenic evolution of extensional tectonics in northern Tuscany, as constrained by new gravimetric data from the Montecarlo Basin (lower Arno Valley, Italy). Tectonophysics, <strong>2001</strong>,&#160; 330, 25-43.</p><p>Pascucci V.; Martini I.P.;&#160; Sagri M.; Sandrelli F. Effects of transverse structural lineaments on the Neogene-Quaternary basins of Tuscany (inner Northern Apennines, Italy). Sedimentary Processes, Environments and Basins: A Tribute to Peter Friend, <strong>2007</strong>,</p><p>Rosenbaum, G.; Agostinetti., N.P. (2015). Crustal and upper mantle responses to lithospheric segmentation in the northern Apennines. Tectonics,&#160; 34, 648<strong>&#8211;</strong>661, doi:10.1002/2013TC003498.</p>
Soil evolution and origin of landscape in a late Quaternary tectonically mobile setting: The Po Plain-Northern Apennines border in Lombardy (Italy)
