气候变化领域集成服务门户(CCPortal): The impact of structural complexity, fault segmentation, and reactivation on seismotectonics: Constraints from the upper crust of the 2016

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DOI	10.1016/j.tecto.2021.228861
	The impact of structural complexity, fault segmentation, and reactivation on seismotectonics: Constraints from the upper crust of the 2016–2017 Central Italy seismic sequence area
	Buttinelli M.; Petracchini L.; Maesano F.E.; D'Ambrogi C.; Scrocca D.; Marino M.; Capotorti F.; Bigi S.; Cavinato G.P.; Mariucci M.T.; Montone P.; Di Bucci D.
发表日期	2021
ISSN	00401951
卷号	810
英文摘要	Young and tectonically active chains like the Central Apennines (Italy) are featured by high structural complexity as a result of the overprint of subsequent deformational stages, making interpretation of seismotectonics challenging. The Central Apennines are characterized by the stacking of tectono-sedimentary units organized in thrust sheets. However, extensional tectonics is currently affecting the axial sector of the thrust belt, mostly expressing in extensional earthquakes. Using a large subsurface dataset acquired for hydrocarbon exploration in the region struck by the 2016–2017 Central Italy seismic sequence, we built a comprehensive 3D geological model and compared it with the seismicity. The model primarily shows a series of thrusts developed during the Miocene-Pliocene Apennines orogenesis and inherited normal faults developed during the Mesozoic extensional phase and the Miocene foreland flexural process. These normal faults were segmented and transported within the thrust sheets, and sometimes they still show a clear surface expression. The succession of tectonic stages resulted in a widespread reactivation of inherited structures, sometimes inverting their kinematics with different styles and rates, and disarticulating pre-existing configurations. Such evolution has a strong impact on the seismicity observed in the area, as demonstrated by some examples that show how the seismicity is aligned on segments of inherited faults, both compressional and extensional. Their reactivation can be explained by their favorable orientation within the current extensional stress field. Results feed the debate about the seismogenic potential of faults identified both at depth and surface, which can impact the seismic hazard of the Apennines. © 2021 Elsevier B.V.
关键词	3D geological model Central apennines Earthquakes Inherited faults Normal faults Thrust sheets
英文关键词	3D modeling; Large dataset; Petroleum prospecting; Seismology; 3-d geological models; Central Apennines; Extensional stress; Extensional tectonics; Fault segmentation; Hydrocarbon exploration; Structural complexity; Surface expression; Fault slips; data interpretation; earthquake; extensional tectonics; flexure; hydrocarbon exploration; normal fault; seismicity; seismotectonics; three-dimensional modeling; thrust; upper crust; Apennines; Italy
语种	英语
来源期刊	Tectonophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207951
作者单位	Istituto Nazionale di Geofisica e Vulcanologia, Department of Seismology and Tectonophysics, Via di Vigna Murata, 605, Roma, 00143, Italy; Consiglio Nazionale delle Ricerche, Istituto di Geologia Ambientale e Geoingegneria, Piazzale Aldo Moro, 7, Roma, 00185, Italy; Istituto Superiore per la Protezione e la Ricerca Ambientale, Dip. Servizio Geologico d'Italia, Via Vitaliano Brancati, 48, Roma, 00144, Italy; Università degli Studi di Roma La Sapienza, Piazzale Aldo Moro, 5, Roma, 00185, Italy; Dipartimento della Protezione Civile, Presidenza del Consiglio dei Ministri, Via Ulpiano, 11, Roma, 00193, Italy
推荐引用方式 GB/T 7714	Buttinelli M.,Petracchini L.,Maesano F.E.,等. The impact of structural complexity, fault segmentation, and reactivation on seismotectonics: Constraints from the upper crust of the 2016–2017 Central Italy seismic sequence area[J],2021,810.
APA	Buttinelli M..,Petracchini L..,Maesano F.E..,D'Ambrogi C..,Scrocca D..,...&Di Bucci D..(2021).The impact of structural complexity, fault segmentation, and reactivation on seismotectonics: Constraints from the upper crust of the 2016–2017 Central Italy seismic sequence area.Tectonophysics,810.
MLA	Buttinelli M.,et al."The impact of structural complexity, fault segmentation, and reactivation on seismotectonics: Constraints from the upper crust of the 2016–2017 Central Italy seismic sequence area".Tectonophysics 810(2021).