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    Thin-skinned vs. thick-skinned tectonics in the Matese Massif. Central-Southern Apennines (Italy)

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    Combined structural and geophysical investigations were carried out in the Matese Massif at the boundary between the Central and the Southern Apennines. The aim of this research was to define the structural geometry and the kinematics of Neogene deformation in order to validate the applicability of either thin-skinned or thick-skinned compressive styles in the Apennines of Italy. On the basis of two surface N-S cross-sections, integrated with recently acquired magnetotelluric data, the Matese structure appears as a single thrust sheet limited at the bottom by a low-angle thrust fault with sense-of-displacement towards the North. The structure was later deformed by footwall thrusts carrying Molise-Sannio Pelagic Basin Units and Apulian Carbonate Platform Units. The structure of the Matese Massif is composed mainly of Mesozoic carbonates of inner platform to by-pass and slope facies, separated within the thrust sheet by high-angle faults with low reverse horizontal displacement. These faults acted as normal faults in the Mesozoic and Cenozoic and controlled the carbonate facies distribution. During Neogene compression, these structures were tilted and then truncated by the basal short-cut thrust fault that cut from pre-Triassic units to Jurassic dolostone towards the foreland. Finally, Quaternary extensional tectonics dissected the whole structure with fault-related displacement values of up to 1000 m. This resulted in the present-day structural setting of the Matese Massif as a horst bounded to the SW and NE by fault-controlled basins, filled with continental deposits. This revised structural scenario is discussed within the framework of the structural style of external zones of the Apennines

    3D modelling and visualization of geological structures in fold-and-thrust belts: an example from the Sabina area, Central Apennines

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    In the Sabina area, Central Apennines of Italy, faults and folds mainly accommodated high rates of crustal strain and shortening, during the Alpine orogeny from Middle-Upper Miocene to Lower Pliocene (Parotto & Praturlon, 1975; Cipollari & Cosentino, 1992). To improve our understanding of how faults and folds developed in the most internal portion of the outcropping sedimentary fold-and-thrust belt, where structures are highly non-cylindrical, and to test the reliability of 2D models to predict 3D subsurface structure, we are acquiring a 3D dataset for the quadrangle n. 366150 named “Vicovaro”, provided by the CARG project - the remaking of the Italian geological map. This 3D study is based on field geological data from the mapping of the “Vicovaro” quadrangle of the “Palombara Sabina” geological map, an area a few km northeast of Rome. From these data we constructed a set of parallel geological sections that resulted in this 3D visualization of subsurface structures. The 3D model has been reconciled into a coherent geological interpretation.Analyzing the resulting 3D model allowed us checking each section for consistency with respect to the other. Frequently, we were forced to reinterpret sections that we could have considered correct when thinking in 2 dimensions

    Comparison between contractional deformation styles in the Matese Mountain: implications for shortening rates in the Apennines

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    The aim of this paper is to define the structural geometry and kinematics of Neogene deformation of the Matese Massif in order to validate the applicability of either thin-skinned or thick-skinned compressive styles in the Apennines. The Matese structure appears as a single N-vergent thrust sheet above a low angle thrust fault, which was later deformed by footwall thrust sheets. The massif is com-posed mainly of Mesozoic carbonates of inner platform to by-pass and slope facies, separated within the thrust sheet by high angle faults with small component of re-verse displacements. These faults acted as normal faults in the Mesozoic and Ceno-zoic and affected the carbonate facies distribution. During Neogene compression they were mildly reactivated and then passively truncated by the basal short-cut thrust fault that cut from pre-Triassic units to Jurassic dolostone towards the foreland. Finally, Quaternary extensional tectonics dissected the thrust sheet displacing it by up to 1000 m. This has resulted in the present-day structural setting of the Matese Massif as a horst bounded to the SW and NE by extensional basins filled with continental deposits

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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