Geology and Jurassic paleogeography of the Mt. Primo-Mt. Castel Santa Maria ridge and neighbouring areas (Northern Apennines, Italy)

Abstract

This paper presents the results of a geological mapping project across the Mt. Primo ridge and neighbouring areas (Umbria-Marche Domain -Northern Apennines), where a thick MesoCenozoic carbonate succession is exposed. A geological map on the 1:15,000 scale, illustrates the main stratigraphic, paleogeographic and structural features of the area. The geometries of Jurassic stratigraphic units, were mainly controlled by the complex submarine topography resulting from an Early Jurassic extensional phase. The three-dimensional distribution of Jurassic rocks in turn conditioned the structural evolution of this part of the Apennines during the chain building phase.

Geological mapping reveals the role of Early Jurassic rift architecture in the dispersal of calciturbidites: New insights from the Central and Northern Apennines

“…Mesozoic rocks extensively crop out in the Pioraco–Colfiorito area (north‐western part of the Sibillini Mts—Figure 1b), revealing a complex rift‐related palaeogeography. The Mt Gualdo‐Mt Primo and Mt Cimara‐Mt Cesito PCPs (Fabbi, 2015; Fabbi & Santantonio, 2012) characterize the eastern part of the study area, and are separated from the Mt Pennino PCP by the Mt Vermenone‐Valle della Scurosa basin (Figure 1b). The Jurassic succession of the Mt Vermenone‐Valle della Scurosa basin hosts several resedimented carbonate levels, mainly in the ‘Calcari e Marne a Posidonia ’ and ‘Calcari Diasprigni’ formations (Figure 5).…”

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).…”

Geology of the Mt. Cosce sector (Narni Ridge, Central Apennines, Italy)

“…The classical field methods of geological mapping were used, along with dedicated methods made necessary by the peculiar paleotectonic architecture of the region (e.g. Fabbi, 2014;Galluzzo & Santantonio, 2002).…”