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Authors: Di Bucci, D.* 
Ravaglia, A.* 
Seno, S.* 
Toscani, G.* 
Fracassi, U.* 
Valensise, G.* 
Title: Modes of fault reactivation from analogue modeling experiments: implications for the seismotectonics of the southern Adriatic foreland (Italy)
Journal: Quaternary International 
Series/Report no.: / 171-172 (2007)
Publisher: Elsevier
Issue Date: 2007
DOI: 10.1016/j.quaint.2007.01.005
Keywords: Active fault
Strike-slip kinematics
Fault reactivation
Sandbox model
Subject Classification04. Solid Earth::04.04. Geology::04.04.06. Rheology, friction, and structure of fault zones 
04. Solid Earth::04.04. Geology::04.04.09. Structural geology 
Abstract: The active tectonics at the front of the Southern Apennines and in the Adriatic foreland is characterized by E-W striking, right-lateral seismogenic faults, interpreted as reactivated inherited discontinuities. The best studied among these is the Molise-Gondola shear zone (MGsz). The interaction of these shear zones with the Apennines chain is not yet clear. To address this open question we developed a set of scaled analogue experiments, aimed at analyzing: 1) how dextral strike-slip motion along a pre-existing zone of weakness within the foreland propagates toward the surface and affects the orogenic wedge; 2) the propagation of deformation as a function of increasing displacement; 3) any insights on the active tectonics of Southern Italy. Our results stress the primary role played by these inherited structures when reactivated, and confirm that regional EW dextral shear zones are a plausible way of explaining the seismotectonic setting of the external areas of the Southern Apennines.
Description: 14th MAEGS Volume
Appears in Collections:Article published / in press

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