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Purpose At the northern fringe of the Po Plain (northern\udItaly), several isolated hills exist, corresponding to the top of Late Quaternary anticlines. These hills were thoroughly surveyed for their soils and surficial geology, furnishing detailed archives of the palaeoenvironmental evolution of the area. A new, thick and complex loess-paleosol sequence, resting upon fluvial/fluvioglacial deposits, exposed in a quarry at the top of the Monte Netto hill was studied in detail to elucidate its significance.\udMaterials and methods Highly deformed fluvial and\udfluvioglacial deposits, probably of Middle Pleistocene age,\udare exposed in a clay pit at Monte Netto, underneath a 2- to\ud4-m-thick loess-paleosol sequence. A geopedological, sedimentological and micropedological investigation of the sequence shows a distinctive difference between the B horizons forming the sequence, while luminescence and radiocarbon age determinations and the occurrence of Palaeolithic lithic assemblages elucidate the chronology of the sequence.\udResults and discussion The pedosedimentary sequence consists of several loess layers showing different degrees of\udalteration; loess deposition and weathering occurred,\udaccording to optically stimulated luminescence (OSL) and\udAMS-14C dating as well as archaeological materials, during\udthe Upper Pleistocene. The lower part of the section consists\udof strongly weathered colluvial sediments overlying fluvial\udand fluvioglacial sediments. A tentative model of the exposed profiles involves the burial of the anticline, which forms the core of the hill, by loess strata since Marine Isotopic Stage (MIS) 4 and their subsequent weathering (and truncation) during subsequent interstadials. The degree of weathering of buried B horizons increases from the top of the sequence toward the bottom, suggesting a progressive decrease in the\udintensity of pedogenesis. Finally, the highly rubified paleosol\udat the top of the hill is regarded as a buried polygenetic soil or a vetusol, developed near the surface since the Middle\udPleistocene.\udConclusions The palaeopedological, geochronological and\udgeoarchaeological analyses permit to define the phases and\udsteps of development of the Monte Netto pedosedimentary\udsequence; the lower part of the sequence is dated to the Mid-Pleistocene, whereas loess accumulation occurred between MIS 4 and MIS 2. Moreover, analyses help to clarify the climatic and environmental context of alternating glacial and interstadial phases, during which the sediments where deposited, deformed and weathered

The loess-paleosol sequence at Monte Netto: a record of climate change in the Upper Pleistocene of the central Po Plain, northern Italy