Publication Date:
2017-04-04
Description:
An edited version of this paper was published by AGU. Copyright (2010) American Geophysical Union
Description:
We investigate the role of the Africa-Eurasia convergence in the recent tectonic evolution of the central Mediterranean. To this end we focused on two sectors of the Adriatic-Hyblean foreland of the Apennine-Maghrebian chain as they allow tectonic evidence for relative plate motions to be analyzed aside from the masking effect of other more local tectonic phenomena (e.g., subduction, chain building, etc.). We present a thorough review of data and interpretations on two major shear zones cutting these foreland sectors: the E-W Molise-Gondola in central Adriatic and the N-S Vizzini-Scicli in southern Sicily. The selected foreland areas exhibit remarkable similarities, including an unexpectedly high level of seismicity and the presence of the investigated shear zones since the Mesozoic. We analyze the tectonic framework, active tectonics, and seismicity of each of the foreland areas, highlighting the evolution of the tectonic understanding. In both areas, we find that current strains at midcrustal levels seem to respond to the same far-field force oriented NNW-SSE to NW-SE, similar to the orientation of the Africa-Eurasia convergence. We conclude that this convergence plays a primary role in the seismotectonics of the central Mediterranean and is partly accommodated by the reactivation of large Mesozoic shear zones.
Description:
The work has been
funded by project “Sviluppo Nuove Tecnologie per la Protezione e Difesa
del Territorio dai Rischi Naturali,” by the Italian Ministry of Education and
Research (MIUR), and by the Italian Presidenza del Consiglio dei Ministri –
Dipartimento della Protezione Civile (DPC).
Description:
Published
Description:
B12404
Description:
3.2. Tettonica attiva
Description:
3.3. Geodinamica e struttura dell'interno della Terra
Description:
JCR Journal
Description:
partially_open
Keywords:
Molise-Gondola shear zone
;
Vizzini-Scicli shear zone
;
Gargano Promontory
;
Hyblean Plateau
;
slip reversal
;
1627 earthquake
;
1693 earthquake
;
04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformations
;
04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
;
04. Solid Earth::04.04. Geology::04.04.09. Structural geology
;
04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics
;
04. Solid Earth::04.07. Tectonophysics::04.07.04. Plate boundaries, motion, and tectonics
;
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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