Publication Date:
2017-04-04
Description:
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
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 E-W dextral
shear zones are a plausible way of explaining the seismotectonic setting of the external areas of the
Southern Apennines.
Description:
INGV, Università degli Studi di Pavia
Description:
Published
Description:
21
Description:
open
Keywords:
Active strike-slip fault
;
sandbox model
;
southern Italy
;
04. Solid Earth::04.01. Earth Interior::04.01.02. Geological and geophysical evidences of deep processes
;
04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformations
;
04. Solid Earth::04.04. Geology::04.04.09. Structural geology
;
04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolution
;
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
Format:
5190977 bytes
Format:
application/pdf
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