Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/4821
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Mirabella, F.; Università di Perugia | en |
dc.contributor.authorall | Barchi, M. R.; Università di Perugia | en |
dc.contributor.authorall | Lupattelli, A.; Università di perugia | en |
dc.contributor.authorall | Stucchi, E.; Università di Milano | en |
dc.contributor.authorall | Ciaccio, M. G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.date.accessioned | 2008-12-15T22:02:19Z | en |
dc.date.available | 2008-12-15T22:02:19Z | en |
dc.date.issued | 2008 | en |
dc.identifier.uri | http://hdl.handle.net/2122/4821 | en |
dc.description.abstract | [1] We reconstruct the subsurface geology in a region of the northern Apennines (central Italy) where a protracted extensional sequence occurred in 1997–1998 with maximum magnitude M = 6.0. Our study is mainly based on the interpretation of three reprocessed seismic reflection profiles crossing the epicentral area, which constrain the subsurface geometry to a depth of about 12 km where most of the shallow seismicity occurs. Comparing the subsurface setting with accurately determined earthquake locations, we find that the seismicity is located entirely within the sedimentary cover and does not penetrate the underlying basement. This is explained by considering that the sedimentary cover is rather thick and composed of relatively strong lithologies (platform carbonates and evaporites), while the upper part of the basement consists of weak phyllites and siliciclastic rocks. This weak horizon is also evidenced by the low-Vp values measured in deep wells of the region. Its effect is to decouple the sedimentary cover from the crystalline basement, where only microseismicity occurs. Our study indicates that local structure and stratigraphy can significantly influence the distribution of seismicity within the upper crust, particularly in complex geological environments such as thrust-and-fold belts. | en |
dc.language.iso | English | en |
dc.publisher.name | American Geophysical Union | en |
dc.relation.ispartof | Tectonics | en |
dc.relation.ispartofseries | /27(2008) | en |
dc.relation.isversionof | http://www.agu.org/journals/tc/tc0801/2007TC002134/ | en |
dc.subject | seismogenic layers, northern apennines | en |
dc.subject | B/D transition | en |
dc.subject | umbria-marche apennines | en |
dc.title | Insights on the seismogenic layer thickness from the upper crust structure of the Umbria-Marche Apennines (Central Italy) | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | TC1010 | en |
dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.06. Rheology, friction, and structure of fault zones | en |
dc.identifier.doi | 10.1029/2007TC002134 | en |
dc.description.obiettivoSpecifico | 3.2. Tettonica attiva | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Mirabella, F. | en |
dc.contributor.author | Barchi, M. R. | en |
dc.contributor.author | Lupattelli, A. | en |
dc.contributor.author | Stucchi, E. | en |
dc.contributor.author | Ciaccio, M. G. | en |
dc.contributor.department | Università di Perugia | en |
dc.contributor.department | Università di Perugia | en |
dc.contributor.department | Università di perugia | en |
dc.contributor.department | Università di Milano | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Università degli Studi di Perugia | - |
crisitem.author.dept | Università degli studi di Perugia | - |
crisitem.author.dept | Università di perugia | - |
crisitem.author.dept | Dipartimento Scienze della Terra, Università di Milano, Milano, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.orcid | 0000-0003-0431-4341 | - |
crisitem.author.orcid | 0000-0002-5719-9909 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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File | Description | Size | Format | Existing users please Login |
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tectonics.pdf | main article | 1.05 MB | Adobe PDF |
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