http://www.cnr.it/ontology/cnr/individuo/prodotto/ID28646
Middle Pleistocene to Holocene activity of the Gondola Fault Zone (Southern Adriatic Foreland): deformation of a shear zone and seismotectonic implications. (Articolo in rivista)
- Type
- Label
- Middle Pleistocene to Holocene activity of the Gondola Fault Zone (Southern Adriatic Foreland): deformation of a shear zone and seismotectonic implications. (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Ridente D. 1; Di Bucci D. 2; Fracassi U. 3; Trincardi F. 1; Valensise G. 2 (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1. CNR, Ist Sci Marine ISMAR Geol Marina, I-10140129 Bologna, Italy
2. Ist Nazl Geofis & Vulcanol, I-60500143 Rome, Italy
3. Dipartimento Protez Civile, I-400189 Rome, Italy (literal)
- Titolo
- Middle Pleistocene to Holocene activity of the Gondola Fault Zone (Southern Adriatic Foreland): deformation of a shear zone and seismotectonic implications. (literal)
- Abstract
- Recent seismicity in and around the Gargano Promontory, an uplifted portion of the Southern Adriatic
Foreland domain, indicates active E-W strike-slip faulting in a region that has also been struck by large
historical earthquakes, particularly along the Mattinata Fault. Seismic profiles published in the past two
decades show that the pattern of tectonic deformation along the E-W-trending segment of the Gondola Fault
Zone, the offshore counterpart of the Mattinata Fault, is strikingly similar to that observed onshore during the
Eocene-Pliocene interval. Based on the lack of instrumental seismicity in the south Adriatic offshore, however,
and on standard seismic reflection data showing an undisturbed Quaternary succession above the Gondola
Fault Zone, this fault zone has been interpreted as essentially inactive since the Pliocene. Nevertheless, many
investigators emphasised the genetic relationships and physical continuity between the Mattinata Fault, a
positively active tectonic feature, and the Gondola Fault Zone. The seismotectonic potential of the system
formed by these two faults has never been investigated in detail. Recent investigations of Quaternary
sedimentary successions on the Adriatic shelf, by means of very high-resolution seismic-stratigraphic data,
have led to the identification of fold growth and fault propagation in Middle-Upper Pleistocene and Holocene
units. The inferred pattern of gentle folding and shallow faulting indicates that sediments deposited during
the past ca. 450 ka were recurrently deformed along the E-W branch of the Gondola Fault Zone.
We performed a detailed reconstruction and kinematic interpretation of the most recent deformation
observed along the Gondola Fault Zone and interpret it in the broader context of the seismotectonic setting of
the Southern Apennines-foreland region.We hypothesise that the entire 180 km-long Molise-Gondola Shear
Zone is presently active and speculate that also its offshore portion, the Gondola Fault Zone, has a seismogenic
behaviour. (literal)
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