气候变化领域集成服务门户(CCPortal): Complexity of the 2009 L'Aquila earthquake causative fault system (Abruzzi Apennines; Italy) and effects on the Middle Aterno Quaternary basin arrangement

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DOI	10.1016/j.quascirev.2019.04.014
	Complexity of the 2009 L'Aquila earthquake causative fault system (Abruzzi Apennines; Italy) and effects on the Middle Aterno Quaternary basin arrangement
	Pucci S.; Villani F.; Civico R.; Di Naccio D.; Porreca M.; Benedetti L.; Gueli A.; Stella G.; Baccheschi P.; Pantosti D.
发表日期	2019
ISSN	0277-3791
起始页码	30
结束页码	66
卷号	213
英文摘要	An Mw 6.1, devastating earthquake, on April 6, 2009, struck the Middle Aterno Valley (Abruzzi Apennines, Italy) due to the activation of a poorly known normal fault system. Structural analysis of the fault population and investigation of the relationships with the Quaternary continental deposits through integrated field and laboratory techniques were conducted in order to reconstruct the long-term, tectono-sedimentary evolution of the basin and hypothesize the size of the fault segment. A polyphasic evolution of the Middle Aterno Valley is characterized by a conjugate, ∼E-W[sbnd] and ∼N[sbnd]S-striking fault system, during the early stage of basin development, and by a dip-slip, NW-striking fault system in a later phase. The old conjugate fault system controlled the generation of the largest sedimentary traps in the area and is responsible for the horst and graben structures within the basin. During the Early Pleistocene the E-W and N[sbnd]S system reactivated with dip-slip kinematics. This gave rise to intra-basin bedrock highs and a significant syn-tectonic deposition, causing variable thickness and hiatuses of the continental infill. Subsequently, since the end of the Early Pleistocene, with the inception of the NW-striking fault system, several NW-strands linked into longer splays and their activity migrated toward a leading segment affecting the Paganica-San Demetrio basin: the Paganica-San Demetrio fault alignment. The findings from this work constrain and are consistent with the subsurface basin geometry inferred from previous geophysical investigations. Notably, two major elements of the ∼E-W[sbnd] and ∼N[sbnd]S-striking faults likely act as transfer to the nearby stepping active fault systems or form the boundaries, as geometric complexities, that limit the Paganica-San Demetrio fault segment overall length to 19 ± 3 km. The resulting size of the leading fault segment is coherent with the extent of the 6 April 2009 L'Aquila earthquake causative fault. The positive match between the geologic long-term and coseismic images of the 2009 seismogenic fault highlights that the comprehensive reconstruction of the deformation history offers a unique contribution to the understanding faults seismic potential. © 2019
英文关键词	Active tectonics; Alluvial fan; Central apennines; Continental stratigraphy; Earthquake; Quaternary extensional basin
语种	英语
scopus关键词	Earthquakes; Landforms; Sedimentology; Stratigraphy; 6 April 2009 L'Aquila earthquakes; Active tectonics; Alluvial fans; Central Apennines; L'aquila earthquakes; Laboratory techniques; Quaternary extensional basin; Sedimentary evolution; Faulting; active fault; alluvial fan; bedrock; continental crust; coseismic process; dip-slip fault; earthquake event; extensional tectonics; fault zone; graben; hiatus; infill; kinematics; long-term change; Pleistocene; sedimentary structure; sequence stratigraphy; strike-slip fault; tectonic evolution; tectonic reconstruction; Abruzzi; Apennines; Aterno Valley; Italy; L'Aquila; Paganica; Aquila
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151936
作者单位	Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, Rome, 00143, Italy; Istituto Nazionale di Geofisica e Vulcanologia, Viale Crispi 43, L'Aquila, 67100, Italy; Dipartimento di Fisica e Geologia, Università degli Studi di Perugia, Piazza dell'Università 1, Perugia, 00143, Italy; Aix-Marseille Université, CEREGE CNRS-IRD UMR 34, Aix en Provence, France; PH3DRA labs, Dipartimento di Fisica e Astronomia dell'Università & INFN CT, via Santa Sofia 64, Catania, 95123, Italy
推荐引用方式 GB/T 7714	Pucci S.,Villani F.,Civico R.,et al. Complexity of the 2009 L'Aquila earthquake causative fault system (Abruzzi Apennines; Italy) and effects on the Middle Aterno Quaternary basin arrangement[J],2019,213.
APA	Pucci S..,Villani F..,Civico R..,Di Naccio D..,Porreca M..,...&Pantosti D..(2019).Complexity of the 2009 L'Aquila earthquake causative fault system (Abruzzi Apennines; Italy) and effects on the Middle Aterno Quaternary basin arrangement.Quaternary Science Reviews,213.
MLA	Pucci S.,et al."Complexity of the 2009 L'Aquila earthquake causative fault system (Abruzzi Apennines; Italy) and effects on the Middle Aterno Quaternary basin arrangement".Quaternary Science Reviews 213(2019).