Abstract The evolution of the Apennine wedge has seen time‐space migration forebulge, foredeep, thrust wedge, and back‐arc extension phases in wake Eastward rollback subducting Adria slab. In this framework, thrusting post‐orogenic extensional faulting have occurred two parallel forelandward‐migrating ribbons, with deformation overprinting or partly exploiting anisotropies inherited system. Here, we explore tectonic framework timing subsequent negative inversion Circeo thrust, one major...

This study documents a new finding of an isolated tooth the hybodontiform shark-like chondrichthyan Strophodus AgAssiz, 1838 from Toarcian Umbria-Marche-Sabina Domain in Central Apennines (Italy).The oldest occurrence clade dates back to Late Devonian (ginter et al. 2002; HAirA-petiAn & ginter 2009), and hybodontiforms began among most successful chondrichthyans during Triassic Jurassic but started decline since latest Jurassic, eventually going extinct by end Cretaceous (Kriwet Benton 2004;

While the effects of OAEs are well known for pelagic successions Tethys Ocean, little is about their impact on Peri-Tethyan shallow water carbonate systems. Here we present preliminary results a study related to geological mapping sheet 390 – Frosinone Geological Map Italy (CARG Project), focussed identification and description perturbation induced in Lower Cretaceous succession Latium-Abruzzi Carbonate Platform by well-known Early Oceanic Anoxic Events (OAEs).In Ernici Mts....

Abstract In the Central Apennines, a Tertiary‐Present eastward‐vergent fold and thrust belt, thrusting mainly occurred in‐sequence, cutting across Mesozoic to Early Neogene succession, deposited in rifted (Early Jurassic) passive continental margin, foredeep (late Miocene) conditions. However, Simbruini Mts were characterized by occurrence of regional out‐of‐sequence thrusts (the Vallepietra‐Filettino‐Monte Ortara fault) ofTertiary prethrusting normal faults, associated with deposition thick...

Abstract The San Potito area in central Apennines (Italy), enclosed within the Latium‐Abruzzi carbonate platform, exposes anomalously pelagic carbonates filling an intraplatform basin formed during Jurassic rifting. Oriented obliquely to regional NW‐SE trend of Cenozoic thrusts and extensional faults, basin's eastern boundary fault system, striking N‐S, played a pivotal role structuring orogenic post‐orogenic features. Large tracts experienced double reactivation: positive inversion Miocene...

The digital storage and communication of significant geological data became increasingly more objective accessible through the development new technologies or implementation already well-known techniques as photogrammetry. Digital acquisition geometries (both structural depositional) outcrops is deemed necessary, especially if site concerned liable to be damaged hopelessly involved in natural processes geomorphological evolution. In this paper, we tested performances two different...

Abstract The Montagna dei Fiori has received attention from geologists over the past decades because of both its Jurassic stratigraphy and complex present‐day structure. latter is result multiple phases deformation, Early Jurassic, during opening Tethyan Ocean, to Neogene evolution Apennines fold‐and‐thrust belt. In this paper, we present a new stratigraphic interpretation palaeogeography, based on geological mapping project in area. Using stratigraphy, constructed two forward models, using...

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

Here we describe a number of articulated teeth hybodont shark from Upper Jurassic deposits the Monte Nerone Pelagic Carbonate Platform, in Umbria‐Marche‐Sabina Palaeogeographic Domain (Northern Apennines, Central Italy). The material has been referred to as Asteracanthus cf. A. magnus , quite well‐known taxon already reported Middle Europe. Teeth indicate an extreme crushing feeding behaviour, suggesting putative prey both infaunal and epifaunal hard‐shelled invertebrates dwelling sea‐floor,...

Re-sedimented deposits characterize different stratigraphical intervals in the pelagic successions of Umbria-Marche-Sabina Domain (Central and Northern Apennines, Italy). Three stratigraphic sections Maiolica Marne a Fucoidi Formations, characterized by breccias calcarenites embedded sediments, have been sampled across Mt. Primo area (Umbria- Marche Ridge, Apennines). Facies analysis indicates gravity-driven origin for clastic levels, interpreted as debris-flows, or turbidity flows. The...

Fold-and-thrust belts and accretionary prisms exhibit considerable variability in slip behaviors along active faults. While numerous studies have investigated fault mechanics carbonate-, shale-, sandstone-hosted faults as well clay-rich portions of shallow prisms, the deformation mechanisms deformed, thrust-top molasse-type conglomerates remain poorly understood. To fill this knowledge gap, we conducted structural microstructural analyses on exhumed deformed footwall an out-of-sequence...

Abstract Submarine palaeo-escarpment tracts at the basin margins commonly border isolated drowned carbonate platforms in Jurassic rifted of Western Tethys and bear fundamental structural palaeogeographic significance. These tectonically generated escarpments, rooted late Hettangian-early Sinemurian master faults, provide key information on regional architecture rift, nature timespan activity faults which define them. An platform (the Sabina Plateau) Northern Apennines Central Italy exhibits...

In their paper on the Montagna dei Fiori area, Storti et alii (2017) present a new geological map and discuss dolomitization pattern Jurassic extensional architecture of this sector Central Apennines. They conclude that field evidence does not support gravity-driven olistolith hypothesis proposed by Di Francesco (2010), which had already been considered definitively to discard (2016). As proponents such hypothesis, we argue in Discussion provide any compelling for rejection our original...

In this contribution we present the first material referable to hybodont shark from Rosso Ammonitico Formation (Umbria-Marche-Sabina Palaeogeographic Domain). Two teeth were recovered isolated within Toarcian red marly-limestone (Bifrons Zone). The best-preserved tooth is characterized by a general structure well in accord with classic crushing dentition typical of sharks Subfamily Acrodontinae. gently domed occlusal surface does not show any trace crest and wrinkles, densely pitted, finely...

This paper presents the results of a geological mapping project across northern portion Simbruini Mts. (Latium-Abruzzi Domain – Central Apennines), where thick Cretaceous and Miocene carbonate succession, followed by upper terrigenous foredeep is exposed. The succession also includes peculiar lithoclastic unit ('brecce della Renga fm.'), whose sedimentation linked to pre-orogenic (Tortonian-Messinian) extensional tectonics. study area experienced late Messinian-early Pliocene compression,...

Resedimented calcarenites and hybrid arenites are commonly found interbedded with various Upper Miocene terrigenous units (hemipelagic marls, “brecce della Renga fm.”, siliciclastic turbidites) across the Simbruini Mts. neighbouring areas of Central Apennines. Their distribution provides evidence for a complex, rapidly evolving, paleogeography region that was experiencing transition from foreland to accretionary wedge conditions during Tortonian Messinian. The bio-sedimentological features...

The Mesozoic of the Trieste Karst is part 90 th Congress Italian Geological Society, Italy, 2021.The guide aims at documenting selected outcrops located on plateau where fossil richness related to particular carbonate platform facies associations highlight area as an important archive for marine and continental palaeodiversity.The Natural History Museum holds most collection Late Cretaceous fossils, including exceptionally preserved dinosaurs (Tethyshadros insularis), reptiles, land plants,...

This paper presents the results of a geological mapping project across eastern Simbruini Mts. and higher Roveto Valley (Central Apennines). The study area belongs to Latium-Abruzzi Domain, which is characterized by Cretaceous Miocene carbonate platform succession followed thick upper terrigenous succession. A unique feature existence clastic unit, 'brecce della Renga fm.'; this unit was produced dismantling margins large pre-orogenic extensional structural high, rose within foredeep basin...