Papers by cristian cavozzi
AGU Fall Meeting Abstracts, Dec 18, 2014
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EGU General Assembly Conference Abstracts, Apr 1, 2016
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When numerical and analogue models are used to investigate the evolution of deformation processes... more When numerical and analogue models are used to investigate the evolution of deformation processes in crust and lithosphere, they face specific challenges related to, among others, large contrasts in material properties, the heterogeneous character of continental lithosphere, the presence of a free surface, the occurrence of large deformations including viscous flow and offset on shear zones, and the observation that
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Tectonophysics
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Tectonophysics, 2020
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2002 Denver Annual Meeting, 2002
COSTA, Elisabetta 1, MOSCONI, Alessandro 2, and CAVOZZI, Cristian 1,(1) Dipartimento di Scienze d... more COSTA, Elisabetta 1, MOSCONI, Alessandro 2, and CAVOZZI, Cristian 1,(1) Dipartimento di Scienze della Terra, Univ. of Parma, Parco Area delle Scienze 157/A, Parma, 43100, Italy, costae@ unipr. it,(2) Eni SpA, Agip Div, Via dell'Unione Europea, 3, San Donato Milanese ...
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A.15 SS.4 The study area is located in the northern part of the Crotone Basin that represents the... more A.15 SS.4 The study area is located in the northern part of the Crotone Basin that represents the wedge-top depozone of the foreland basin system developed on the Ionian side of Calabria. The north-western stratigraphic succession consists of Middle Miocene shallow marine conglomerate of the San Nicola Fm. passing upward into the offshore Ponda Clays (Tortonian), which underlie organic-rich laminites (Tripoli Fm.) at the Tortonian/Messinian boundary. During the Messinian the sedimentation in the area was dominated by evaporitic conditions producing selenite deposits and halite. In the studied area such conditions are recorded only by clastic evaporite deposits, such as limestone breccias, thick gypsrudites and gypsarenites (resedimented evaporites), which overly the pre-Messinian deposits by the basinal correlative conformity of the marginal unconformity (not visible in the study area). An intra-Messinian shortening affected this north- western succession, which now forms a SE-verging anticline and an E-dipping monocline. The anticline is characterized by a low amplitude/axial length and both its geometry and minor faulting suggest a trishear faultpropagation folding kinematics (Hardy and Ford, 1997) with low propagation/slip (P/S ≅ 0) and large ramp angle (about 70°). A south-eastern salt-bearing succession, onlaps to the north and west these structural highs, which are composed of a sedimentary chaotic complex followed by arenites, pelites and minor, fine-grained gypsarenites topped by sediments containing a Lago Mare fauna. A local angular unconformity marks the boundary between the north-western, older succession and the southeastern one. The overlying Carvane conglomerates and early Pliocene units also onlap the structural highs, indicating that their deposition was also spatially constrained by these intra-Messinian structures. The intra-Messinian shortening was followed by extension, which triggered salt diapirism and caused the progressive tilting of the overlying Lower Pliocene succession. Halite is strongly modified by folding and recrystallisation, but a few primary features are preserved suggesting deposition in a saline lake, salt pan and saline mudflat (Lugli et al., in press). The
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Attivita delle faglie di rift nei margini passivi indotta dall'evoluzione dell'assottigli... more Attivita delle faglie di rift nei margini passivi indotta dall'evoluzione dell'assottigliamento litosferico: indicazioni dalla modellistica analogica.L'evoluzione del rifting nei margini passivi e stata oggetto di numerosi studi negli ultimi anni. Fra le altre, le tematiche piu dibattute riguardano la geometria delle master faults, la ripartizione dell'assottigliamento con la profondita, l'eta e lo sviluppo dei bacini di sag. In questa nota riportiamo i risultati prodotti da modelli analogici progettati per investigare l'evoluzione delle faglie durante il rifting ed il loro ruolo nella formazione dei bacini di sag.I modelli hanno evidenziato l'importanza della risalita astenosferica nella ripartizione dell'attivita delle faglie, passando dalle faglie estensionali ad alto angolo alle faglie a basso angolo. La discrepanza fra l'estensione della crosta e della litosfera puo essere quindi ricondotta all'attivita delle faglie estensionali a basso a...
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A series of 3D sandbox analogue models with the support of 2D structural restoration on selected ... more A series of 3D sandbox analogue models with the support of 2D structural restoration on selected regional transects were used to analyze the pre-salt tectono-stratigraphic evolution of the Central segment of the South Atlantic Ocean (Figure 1). Seafloor spreading in the study area took place at the Aptian-Albian boundary, and the conjugate West Africa and Brazil rifted continental margin segment is classified as a “magma-poor” margin segment characterized by the presence of an intermediate/transitional crust between the continental and the oceanic crust. This contribution presents the results of a set of sandbox modeling experiments aimed to elucidate the structural elements and features reflecting the syn-rift basin evolution and the processes that governed the pre-breakup lithospheric extension at a rifted margin. The extensional sandbox analogue models were performed at full lithospheric-scale: a 4-layers setup (upper and lower crust/mantle) with alternating layers of sand and si...
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Ruolo dei lineamenti ereditati nella modellazione analogica delle zone di taglio crostali in regi... more Ruolo dei lineamenti ereditati nella modellazione analogica delle zone di taglio crostali in regime trascorrente.I lineamenti strutturali ereditati sono ampiamente riconosciuti come fattori portanti nel determinare lo sviluppo dell'architettura strutturale dei successivi sistemi deformativi, fra gli altri la deformazione intraplacca. Qui presentiamo i risultati preliminari di un programma di modelli analogici studiati per vincolare l'influenza dei lineamenti ereditati in sistemi deformativi trascorrenti a scala crostale.
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European geosciences union general assembly, 2010
Analogue model experiments are widely used to gain insights into the evolution of geological stru... more Analogue model experiments are widely used to gain insights into the evolution of geological structures. In this study, we present a direct comparison of experimental results of 14 analogue modelling laboratories using prescribed set-ups. A quantitative analysis of the results will document the variability among models and will allow an appraisal of reproducibility and limits of interpretation. This has direct implications for comparisons between structures in analogue models and natural field examples. All laboratories used the same frictional analogue materials (quartz and corundum sand) and prescribed model-building techniques (sieving and levelling). Although each laboratory used its own experimental apparatus, the same type of self-adhesive foil was used to cover the base and all the walls of the experimental apparatus in order to guarantee identical boundary conditions (i.e. identical shear stresses at the base and walls). Three experimental set-ups using only brittle friction...
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Biomolecules
In cystic fibrosis (CF), the accumulation of viscous lung secretions rich in DNA and actin is a m... more In cystic fibrosis (CF), the accumulation of viscous lung secretions rich in DNA and actin is a major cause of chronic inflammation and recurrent infections leading to airway obstruction. Mucolytic therapy based on recombinant human DNase1 reduces CF mucus viscosity and promotes airway clearance. However, the marked susceptibility to actin inhibition of this enzyme prompts the research of alternative treatments that could overcome this limitation. Within the human DNase repertoire, DNase1L2 is ideally suited for this purpose because it exhibits metal-dependent endonuclease activity on plasmid DNA in a broad range of pH with acidic optimum and is minimally inhibited by actin. When tested on CF artificial mucus enriched with actin, submicromolar concentrations of DNase1L2 reduces mucus viscosity by 50% in a few seconds. Inspection of superimposed model structures of DNase1 and DNase1L2 highlights differences at the actin-binding interface that justify the increased resistance of DNase...
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Journal of Structural Geology
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Papers by cristian cavozzi