Geological map of upper Pellice Valley (Italian Western Alps)

The 1:25,000 scale geological map of the upper Pellice Valley (Italian Western Alps) encompasses an area of roughly 60 km2 where a composite stack of both oceanic and continental Alpine units crops out. The four units distinguished in the map correspond, from bottom to top, to the Dora Maira Unit, a slice of the Paleozoic European crust, the Giulian-Sea Bianca Unit, a succession of Triassic to Lower Jurassic carbonate metasediments, the Monviso Unit, an ophiolitic remnant of the Mesozoic Tethyan Ocean, and the Bucie-Seilliere Unit, a carbonate metasedimentary succession of Upper Jurassic to Upper Cretaceous age. Each unit is bounded by syn-metamorphic faults (i.e. tectonic contacts) and is displaced by a postmetamorphic fault network, then discontinuously covered by heterogeneous alluvial, gravitative, glacial and periglacial Quaternary deposits. The map gives new and updated information about the structural and geological setting of the Pellice Valley through a detailed representation of the main lithological, structural and morphological features.