1,721,065 research outputs found
Extensional mesostructures in thrust schear zones: examples from the Umbro-Marchean Apennines
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L’eredità strutturale delle faglie normali mioceniche pre-svrascorrimento sulla strutturazione messiniano-pliocenica della Montagna Grande e del Monte Genzana (catena centro-appenninica abruzzese.
No full textCorrelazione tra gli eventi deformativi neogenico-quaternari del settore tosco-umbro-marchigiano
No full textEvidenze di una fase tettonica distensiva del Messiniano basale nel "bacino di Camerino" (Appennino umbro-marchigiano)
No full textDifferences and similarities between the Central and the Southern Apennines (Italy): examining the Gran Sasso vs. the Matese-Frosolone salients using paleomagnetic, geological and structural data.
No full textThe Apennines consists of the following two major first-order arcuate features: the northern Apennines Arc and the southern Apennines-Calabrian Arc, separated by the Sangro-Volturno line. In this paper we compare and discuss these major arcs, which are characterized by several differences. These are mainly related to differences in paleogeographic domains, stratigraphic successions, structural setting, and geodynamic evolution. We describe with particular emphasis the following two main salients: the Gran Sasso Range and the Matese-Frosolone Mountains, geographically belonging to the central and the southern Apennines, respectively. We analyze existing geological, structural, and paleomagnetic information from both salients and provide new paleomagnetic and magnetic anisotropy data for eight Messianian-Tortonian sites from the Matese-Frosolone Mountains. The aim of the work is to reconstruct the Tortonian-Quaternary kinematic evolution of the central Apennines, which represents the junction zone between the northern Apennines Arc and the southern Apennines-Calabrian Arc. Furthermore, we propose to use the different style of paleomagnetic rotations in arcuate shapes as a tool to discriminate if structures located in the central Apennines geologically belong to the northern Apennines Arc or to the southern Apennines-Calabrian Arc. Finally, the results of this study allowed us to interpret the Sangro-Volturno line as an oblique ramp of the Pliocene-Quaternary frontal thrusts
Thrust vs. strike-slip tectonics in the Marsica area of the central Appenines: structural inheritance of Miocene syn-orogenic normal faults on Messinian-Pliocene thrust propagation.
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Il ruolo dell'eredità strutturale nello sviluppo della catena appenninica: l'esempio della Montagna Grande e del Monte Genzana (Appennino centrale Abruzzese)
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