High‐resolution seismic data of the uppermost ∼200 m were calibrated and interpreted by means of four continental cores drilled in the Milan area (Figure 1, inset). Such conditions are interpreted as produced by the Middle Pleistocene uplift of the Alps. But the natural period closest to 41 Ka is 49.2 Ka related to the subharmonic mode n10. , and this study. S. Barba, G. Monegato, V. Picotti, I. Rigamonti, A. Schlatter, and L. Trombino are acknowledged for useful comments and discussions.  By assuming an initial state of isostatic equilibrium, geodetic uplift rates can be directly converted into length units of vertical deflection from the initial equilibrium state [Champagnac et al., 2009]. One of these reflectors, the R surface, has been related to the onset of major Pleistocene glaciations in the Alps during the late Early Pleistocene global cooling, culminated with marine isotope stage (MIS) 22 at ∼0.9 Ma [Muttoni et al., 2003; Elderfield et al., 2012]. Morphostructural evidence of Late Quaternary tectonics at the Po Plain-Northern Apennines border (Lombardy, Italy). Squares in the magnetic inclination log indicate values from sample demagnetized by means of alternating field (AF) treatment. These are the Pleistocene glaciations. Isothermal remanent magnetization (IRM) acquisition curves and thermal decay of a three‐component IRM [, Orthogonal projections of thermal demagnetization data of selected samples from the studied cores [, Magnetostratigraphy of the uppermost ∼200 m of the northern Po basin with the interpreted depositional sequences PS1, PS2, and PS3.  The conjunct use of high‐resolution seismics, the localized waveform stack at Common Depth Points (CDP) 95–105, and the Trenno 1 resistivity log allows correlating high‐amplitude reflectors with intervals of high‐amplitude resistivity contrast observed in Trenno 1 at depths of ∼490–450 m, ∼310–170 m, and ∼100–35 m (Figure 3). PS2 straddles the Brunhes–Matuyama boundary (0.781 Ma) and consists of braidplain deposits, attributed to the distal fringe of the glacial outwash plains, prograding transversally to the basin axis from the Central and Southern Alps southward [Muttoni et al., 2003; Garzanti et al., 2011]. An inter-disciplinary and multi-scale approach to assess the spatial variability of ground motion for seismic microzonation: The case study of Cavezzo municipality in Northern Italy. In this study, both reflectors are accurately resolved by means of high‐resolution reflection seismics, facies analysis of four continental cores drilled in the Milan area, and magnetochronology. A newly acquired, high‐resolution seismic profile and a critical review of industrial seismic lines were integrated with sedimentologic observations on four magnetostratigraphically dated continental cores to reconstruct a three‐sequence evolution of the Pleistocene clastic infill in the northern Po basin. It has been shown that denudation rates are spatially correlated with both elevation and present‐day rock uplift [e.g.,Wittmann et al., 2007] and probably coupled [Champagnac et al., 2009]. According to this chronostratigraphic framework, we recognized from top to bottom a virtually complete Brunhes–late Matuyama–Jaramillo succession in cores RL8 and RL9, whereas the poorly resolved reverse polarity magnetozone in cores RL10 and RL11 is interpreted as pertaining to a generic (late?) Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Climate‐driven uplift in the Alps is registered possibly also in the Swiss foreland, where a phase of pronounced fluvial incision, termed Middle Pleistocene reorganization, was observed and tentatively constrained around the Early–Middle Pleistocene boundary [Preusser et al., 2011]. This characteristic component (ChRM) bears either positive (down pointing) or negative (up pointing) inclinations and is regarded as acquired at or shortly after sediment deposition as detrital remanent magnetization (DRM) or postdepositional DRM. First evidence for Late Pleistocene to Holocene earthquake surface faulting in the Eastern Monferrato Arc (Northern Italy): Geology, pedostratigraphy and structural study of the Pecetto di Valenza site. By tracing the reflector from the Po basin to the Eni wells in the Adriatic Sea, the Y surface seems to occur just above the Last Occurrence of age diagnostic nannofossil Pseudoemiliania lacunosa [Carcano and Piccin, 2002] at 0.44 Ma [Lourens et al., 2005]. In detail, PS3 is composed almost exclusively of coarse‐grained, poorly sorted gravels, interpreted as a stack of proximal outwash plain deposits, bounded by low‐rank erosional surfaces. In particular two factors were essential for the formation of the great glaciers. In the late Early Pleistocene, a major progradation of the fluvial and deltaic systems occurred, probably in response to a reduction in subsidence rate; at this time, bathymetry decreased from neritic to shelfal (Trenno 1 and Gaggiano 1; Figure 2). and you may need to create a new Wiley Online Library account. Abstract.  tentatively ascribed the Y surface to MIS 16 lowstand at ∼0.63 Ma by counting (undated) glacial/interglacial cycles starting from the R surface at MIS 22 [Muttoni et al., 2003]. June 2009; DOI: 10.1007/978-0-387-76487-0_12. We suspect the occurrence in this interval of a normal polarity overprint that could not be fully removed during demagnetization treatment. The estimated rebound wavelength is ∼270 km, calculated between the flexural nodes (points where deflection is zero) at both sides of the orogen. The climate in the last phases of the Pleistocene is the subject of this article. Stable carbon isotope values point to dominance of C3 vegetation type during the Late Pleistocene in southern part of Central Europe. the Middle Pleistocene stratigraphy, climate changes, and the evolution of environments on the Japanese Islands (Kumai, 1991; Progress in Quaternary Research in Japan, 2009). Matuyama subchron. Gravel layers are crudely bedded, whereas sand intervals are massive or cross laminated, often enriched in sparse pebbles. Learn about our remote access options, Istituto di Geologia Ambientale e Geoingegneria, CNR, Monterotondo Scalo, Italy, Istituto per la Dinamica dei Processi Ambientali, CNR, Milan, Italy, Dipartimento di Scienze della Terra, Università di Milano, Milan, Italy, Alpine Laboratory of Paleomagnetism, Peveragno, Italy, Burren Resources Petroleum Ltd., Burun Field, Balkanabat, Turkmenistan, Regione Lombardia, Direzione Generale Territorio e Urbanistica, Milan, Italy.  In summary, our model shows that, because of the flexural rigidity of the lithosphere, erosion affecting a limited area (i.e., the mountain chain) is able to trigger rock uplift over a wider area, spreading out off the belt to the peripheral basins with uplift/erosion ratios even larger than in the mountain chain [e.g., Cederbom et al., 2004; Scardia et al., 2006; Champagnac et al., 2008]. Alpine topography in the light of tectonic uplift and glaciation. Equus, including a previously unidentified large species that we attribute to Equus aff. Through the past few million years large ice sheets have repeatedly grown and disappeared on the Northern hemisphere. The sorted CDP were corrected of normal move out (stretch mute factor of 1.5) using the velocity profiles obtained in the velocity analysis step.  The present study aims at improving our knowledge on the Pleistocene rock uplift of the Alps with an interdisciplinary study of the subsurface stratigraphy of the Po Plain, northern Italy (Figure 1). and Petrology, Exploration It starts with an abrupt boundary at its base, and consists of thick packages of alternating medium‐ to coarse‐grained sand, gravel, and subordinate silt. The third sequence (PS3; ∼0.45 Ma to present), marked at the base by another regional unconformity (Y surface), is characterized by proximal braided fluvial deposition under combined conditions of confinement, erosion, and bypass. The holocene pattern is modified after Trewartha ( 1968). Mammuthus trogontherii The data were acquired with a sampling rate of 1000 Hz, a recording window of 1.024 s, and acquisition groups made up by a double string of 14 Hz geophones. The MPT can now be reproduced by numerical models that assume a decreasing level of atmospheric carbon dioxide, a high sensitivity to this decrease, and gradual removal of regoliths from northern hemisphere areas subject to glacial processes during the Quaternary. In recent years, the interpretation of selected industrial seismic profiles led to the recognition of regional reflectors in the Po basin, associated to important changes in style of sediment deposition and basin evolution [Di Dio, 1998; Carcano and Piccin, 2002; Ghielmi et al., 2010] (Appendix A). As a consequence of uplifting during the Middle Pleistocene, the northern Po basin became a mainly bypass area for sediments delivered by the Alps. Inset is a general geologic map of the Milan urban area with indication of the core sites and the tracks of the seismic lines discussed in the text. 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