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. 2017 May 31;7:2517. doi: 10.1038/s41598-017-02437-1

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Uplift history. The uplift affecting the investigated area since 900 ka (green solid line) is assessed based on elevation of the terraced surfaces correlated with the MISs (black crosses) corrected for the different sea-level with respect to present day at each interglacial (a′; green crosses). The coeval uplift assessed on the Tyrrhenian Sea coast is also shown (blue line; ref. 12). Three different uplift histories are hypothesized for the 1.8–0.9 Ma interval, assuming a constant rate since 1.8 Ma to reach the elevation at MIS 21 (i), assuming the same rate as that characterizing the 0.9–0.5 Ma interval (ii), and considering biostratigraphic data from Monte Mario and Monte Riccio (see text) suggesting a sea-level fall of ca. 120 by 1.7 Ma (iii). Isotopes curve in a′ hand drawn with Adobe© Illustrator CS3 13.0.0 graphic program.