Chicco J

Costa M

Invernizzi C

Pierantoni P P

English

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08 November 2022POLITECNICO DI TORINORepository ISTITUZIONALEBuried high-angle structures in the Marche area foothills (Central Italy) / Invernizzi, C; Pierantoni, P P; Chicco, J; Costa,M. - In: GEOPHYSICAL RESEARCH ABSTRACTS. - ISSN 1607-7962. - ELETTRONICO. - (2018). ((Interventopresentato al convegno European Geosciences Union (EGU), General Assembly 2018 tenutosi a Vienna, Austria nelAprile 2018.OriginalBuried high-angle structures in the Marche area foothills (Central Italy)Publisher:PublishedDOI:Terms of use:openAccessPublisher copyright(Article begins on next page)This article is made available under terms and conditions as specified in the  corresponding bibliographic description inthe repositoryAvailability:This version is available at: 11583/2915372 since: 2021-07-27T15:09:34ZCopernicusSee discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/330485159Buried high-angle structures in the Marche foothills area (Central Italy)Conference Paper · April 2018CITATIONS0READS474 authors:Some of the authors of this publication are also working on these related projects:Rift-drift transition dynamics, with application to the Red Sea View projectSviluppo dei sistemi sostenibile geotermici Associati della ai sistemivulcanici Puna di nelle Salta Province View projectChiara InvernizziUniversity of Camerino99 PUBLICATIONS   1,242 CITATIONS   SEE PROFILEPietro Paolo PierantoniUniversity of Camerino100 PUBLICATIONS   1,140 CITATIONS   SEE PROFILEJessica Maria ChiccoPolitecnico di Torino28 PUBLICATIONS   28 CITATIONS   SEE PROFILEMario Costa19 PUBLICATIONS   448 CITATIONS   SEE PROFILEAll content following this page was uploaded by Jessica Maria Chicco on 18 January 2019.The user has requested enhancement of the downloaded file.Geophysical Research AbstractsVol. 20, EGU2018-10525, 2018EGU General Assembly 2018© Author(s) 2018. CC Attribution 4.0 license.Buried high-angle structures in the Marche foothills area (Central Italy)Chiara Invernizzi (1), Pietro Paolo Pierantoni (1), Jessica Chicco (1,2), and Mario Costa (3)(1) University of Camerino, Schoolof Science and Technology, Geology Division, Via Gentile III da Varano 62032 Camerino(MC), Italy (chiara.invernizzi@unicam.it), (2) Department of Earth Sciences, University of Turin, Via Valperga Caluso 3510125 Torino, Italy, (3) Via Selvelli,6 61032 Fano (Italy)Some SW-NE seismic reflection profiles representing the central part of Umbria-Marche Apennine chain to theAdriatic sea, and kindly provided by ENI s.p.a., were interpreted. These profiles allowed to define the structuralsetting and main features at depth, and the evolution of the Marche Apennine sector with more details with respectto previous literature. Along three main parallel transects, crossing the Mio-Pliocene Apennine range and itsexternal Plio-Quaternary sector, we highlighted important sub-surface and deep-rooted (> 10Km) Plio-Quaternarystructures linked to outcropping ones. They are NW-SE or NNW-SSE oriented, with very steep geometry, and theyprobably involve the upper crust basement. In particular, these structures are interpreted as transpressive structuresrelated to lower depth SW and NE-dipping high-angle reverse faults and up-thrusts (positive flower structures).These latter structures involve the Pliocene-Quaternary succession at surface. Moving from W to E, three ofthese main sub-surface positive structures have been identified in the Marche foothills. Ultimately, deep-rootedhigh-angle structures determine a predominat upwards and along striking tectonic transport and they can alsohave possible relationships with deep fluid circulation. The innermost structure nucleated starting from LowerPliocene, the easternmost ones from Upper Pliocene, confirming a NE migration of the deformation. Furthermore,NE-dipping normal and transtensive faults are present west to the compressive structures and with their sameage; they can be interpreted as accomodation structures, similar to that found in the Po Plain underground (Costa,2003). The recognized structures are well framed within the general context where thrust activity in centralApennine almost ceased from upper Pliocene to Quaternary times, and recent focal mechanisms are mainlystrike slip (Mazzoli et al., 2015). The NNW-SSE or NW-SE orientated deep rooting sub-vertical structures canbe interpreted as the conjugate fault system with respect to the ENE-WSW or NE-SW seismogenic faults in theAdriatic, although they are probably active at different times, and they reactivate inherited discontinuities.References:COSTA M., (2003) The buried, Apenninic arcs of the Po Plain and northern Adriatic Sea (Italy): a new model .Boll. Soc. Geol. It. Vol. 122, fasc. 1, 3 – 23MAZZOLI S., SANTINI S., MACCHIAVELLI C., ASCIONE A. (2015) Active tectonics of the outer northernApennine: Adriatic vs Po Plin seismicity and stress fields. Journ. of Geodynamics 84, 62-76.View publication stats

Buried high-angle structures in the Marche area foothills (Central Italy)

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Buried high-angle structures in the Marche area foothills (Central Italy)

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