Geological description

Sunset on Odle / GeislerSunset on Odle / GeislerIn the Natural Park Puez-Odle there is, with few exceptions, the entire stratigraphic succession of the Dolomites from the Permian to the Cretaceous. This part of the NW Dolomites came relatively “undamaged” through the phase of alpine orogeny and hence here the stratigraphic succession is very well preserved and little deformed. The Natural Park Puez-Odle is a part of the open syncline with axis SW-NE, that extends from the Alpe di Siusi to the Alpe di Fanes in the eastern Dolomites. The tectonic deformations of the area, in general, are not accentuated, with the exception of the higher peaks of the plateau of Puez and Gardenaccia In particular in this system there are quaternary deposits, here well documented, that witness in full detail, the processes from the last massive glaciation to nowadays. The alternation of the lithological variation associated with the differing rheology of the sedimentary succession that includes from volcanic rocks, deposits of terrigenous environment, lagoon and tidal plain facies, to deep underwater basins, defines an enormous landscape variability. The net heterogeneity of the lithological composition determines the variable landscape image of the zone: the regular slope of the Rasciesa-Raschötz formed by porphyries of the Atesino Volcanic Group contrasts with the soaring rocks of the carbonate platforms of the Odle (Sciliar/Schlern Dolomite), of Puez-Gardenacia or of Sas de Putia with its basin deposits (Fm. Buchenstein/Livinallongo, Wengen/La Valle and St. Cassian/ San Cassiano).

Emerging stratigraphical and paleontological formations

– The sedimentary series of the Val Gardena Sandstone and of the Bellerophon Formation emerging at Passo Erbe and in the Valle S. Anna (Val Gardena) for continuity and beauty of the outcrops.

– The interfingering of the Triassic platforms (Sciliar Dolomite) with the coeval basin sediments, outcropping in the eastern bluffs of the Odle between Forcella Pana and Seceda, or in the slopes South of Sas de Putia.

– The Anisian Ladinian basin succession outcropping at Seceda is one of the most significant at a Tethys scale and it’s a reference for biostratigraphy of ammonoids and bivalves, for the magneto-stratigraphy and geochronology. Recent core drilling was made to allow some intense studies by an international group of researchers.

– The Puez Marls contain abundant macro fauna of echinoderms, bivalves and above all, ammonites (famous are the heteromorph ammonite fauna studied since the nineteenth century: Haug, 1889; Uhlig, 1887).

Pöz / PuezPöz / Puez