Platform-to-basin facies transition and tectono-sedimentary processes in the Jurassic deposits of the Furlo area (Umbria-Marche Apennines, Italy)

Abstract

The Jurassic successions of the Furlo area (Northern Marche, Italy) are characterized by complex tectono-stratigraphic relationships related to the extreme differentiation of depositional environments occurring from the early Jurassic. In the area of the future Umbria-Marche Apennines, including the Furlo sector, the Sinemurian tectonic event dismembered the wide peritidal carbonate platform of the Calcare Massiccio Fm. into a series of uplifted and downthrown platform blocks bounded by extensional faults. The subsequent drowning of these blocks led to the development of two main environments: pelagic carbonate platforms and basins. The present paper focuses on an analysis of facies that characterize some paleogeographic sectors connecting these two different environments in order to understand the role of tectonics as a control on sedimentary processes. In these sectors, different types of facies have been identified and interpreted. Relationships between facies types, their stacking pattern, and sedimentary structures enabled the identification of different depositional processes directly or indirectly controlled by the tectonic evolution of the study area. The data compiled, compared with those from the literature, were used to relate the Furlo area to a general pelagic carbonate ramp environment constituted by two tilted and drowned carbonate platform blocks; these originated as a result of early Jurassic tectonic activity characterized by some approximately perpendicular faults showing a prevailing rotational character

Aalenian–Early Bathonian (Middle Jurassic) radiolarian assemblages in the Tavas nappe within Lycian nappes in the western Taurides (SW Turkey): The first dating of carbonate platform drowning

“…in some Tethyan realms such as those in Slovenia, Italy, Montenegro and Morocco, according to that reported in previous studies on the Jurassic platform drowning (e.g. Blomeier and Reijmer, 1999;Di Stefano et al, 2002;Gorican et al, 2003Gorican et al, , 2012Smuc, 2005;Smuc and Gorican, 2005;Crne et al, 2007;Crne and Gorican, 2008;Marino and Santantonio, 2010;Donatelli and Tramontana, 2013). Nevertheless, the presence of the unconformities and large stratigraphic gaps between the Lower Jurassic platform carbonates and the Middle Jurassic pelagic sequences has been established (Di Stefano et al, 2002;Smuc, 2005;Smuc and Gorican, 2005;Marino and Santantonio, 2010), contrary to that in the Haticeana series of the Tavas nappe in Turkey.…”

“…While this gradual drowning event compares the coeval events in other Tethyan realms, many similarities are apparent in their mechanisms, fossil assemblages, facies characteristics and timing. Similar platform-to-basin transitions also developed in other Tethyan realms such as the Central and Eastern High Atlas in Morocco (Blomeier and Reijmer, 1999), the Julian Alps in Slovenia and Italy (Gorican et al, 2003(Gorican et al, , 2012Smuc, 2005;Crne et al, 2007;Smuc and Gorican, 2005), the Apennines and Sicily in Italy (Di Stefano et al, 2002;Marino and Santantonio, 2010;Donatelli and Tramontana, 2013) and the Dinaric Carbonate Platform margins in Montenegro (Crne and Gorican, 2008).…”

The Historic Centre of Urbino, UNESCO World Heritage (Marche Region, Italy): an Urban-Geological Itinerary Across the Building and Ornamental Stones

“…This Jurassic unit corresponds to the Bugarone Formation Auct., and is a thin (maximum 50 m) fossil-rich condensed succession resulting from Pelagic Carbonate Platform environment deposition (PCP, sensu Santantonio 1994) above the Jurassic structural high areas (Cecca et al 1990;Cecca and Macchioni 2004;Donatelli and Tramontana 2014;Lundblad 2019;Romano et al 2019). In particular, in the Fosso Bugarone (Fig.…”

Hybodont dentition from the Upper Jurassic of Monte Nerone Pelagic Carbonate Platform (Umbria‐Marche Apennine, Italy) and its ecological implications

“…The Monte Nerone area belongs to the UMS Domain in Central and Northern Apennines, where a well‐known Upper Triassic‐to‐Neogene stratigraphic succession is exposed (Centamore et al, ; Cipriani, ; Colacicchi, Passeri, & Pialli, ; Donatelli & Tramontana, ; Fabbi, ; Fabbi & Santantonio, ; Farinacci, ; Farinacci, Mariotti, Nicosia, Pallini, & Schiavinotto, ; Galluzzo & Santantonio, ; Pierantoni, Deiana, & Galdenzi, ). In particular, the Jurassic‐Cretaceous stratigraphy of Monte Nerone area was extensively studied in the past (e.g., Cecca et al, and references therein).…”