Extensional deformations are common within foredeep basins, and generally consist of hinterland-dipping normal faults located at the foredeep-foreland transition zones. Normal faults at the belt- foredeep boundaries, by contrast, are far less documented, nor their occurrence is predicted by simple orogenic load models. New sur- face data integrated with available seismic reflection profiles across the Central Apennines of Italy reveal the occurrence normal faults located in the inner edges of foredeep depressions. Extensional def- ormations are systematically found within sequentially younger Tor- tonian, Messinian and Early Pliocene foredeep basins, thus suggest- ing that normal fault development was an intrinsic feature of the evolving belt-foredeep-foreland system. Foreland extension is consis- tent with existing geodynamic models for the Apennines, and could represent the effects of lithospheric bending: its recognition and doc- umentation elsewhere could provide significant insights to improve our understanding of syn-orogenic basin dynamics.

Scisciani, V., Tavarnelli, E., Calamita, F., Paltrinieri, W. (2002). Pre-thrusting normal faults within syn-orogenic basins of the Outer Central Apennines, Italy: implications for Apennine tectonics. BOLLETTINO DELLA SOCIETÀ GEOLOGICA ITALIANA, Volume Speciale n. 1(1), 295-304.

Pre-thrusting normal faults within syn-orogenic basins of the Outer Central Apennines, Italy: implications for Apennine tectonics

E. Tavarnelli;
2002-01-01

Abstract

Extensional deformations are common within foredeep basins, and generally consist of hinterland-dipping normal faults located at the foredeep-foreland transition zones. Normal faults at the belt- foredeep boundaries, by contrast, are far less documented, nor their occurrence is predicted by simple orogenic load models. New sur- face data integrated with available seismic reflection profiles across the Central Apennines of Italy reveal the occurrence normal faults located in the inner edges of foredeep depressions. Extensional def- ormations are systematically found within sequentially younger Tor- tonian, Messinian and Early Pliocene foredeep basins, thus suggest- ing that normal fault development was an intrinsic feature of the evolving belt-foredeep-foreland system. Foreland extension is consis- tent with existing geodynamic models for the Apennines, and could represent the effects of lithospheric bending: its recognition and doc- umentation elsewhere could provide significant insights to improve our understanding of syn-orogenic basin dynamics.
2002
Scisciani, V., Tavarnelli, E., Calamita, F., Paltrinieri, W. (2002). Pre-thrusting normal faults within syn-orogenic basins of the Outer Central Apennines, Italy: implications for Apennine tectonics. BOLLETTINO DELLA SOCIETÀ GEOLOGICA ITALIANA, Volume Speciale n. 1(1), 295-304.
File in questo prodotto:
File Dimensione Formato  
articolo32472.pdf

non disponibili

Descrizione: Articolo principale
Tipologia: PDF editoriale
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 459.25 kB
Formato Adobe PDF
459.25 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1095517