The Northern Apennines are one of the main intriguing areas thanks to a complex pattern of thrusts, folds and normal faults, due to the superposition of two different tectonic processes: a compressional phase forming E-NE verging thrusts and folds, and an extensional one generating NW-SE trending normal faults bounding intramountain basins. These tectonic processes are still simultaneously active, as documented by geodetic (Bennett et al., 2012), geologic (Martini and Sagri, 1993) and seismological (Pondrelli et al., 2006) data. In this work we studied in particular the interseismic deformation occurring across the Umbria-Marche sector of Apennines, presenting an integration of GPS and InSAR measurements. Principal deformation processes occurring in the upper crust are well detected by geodetic interseismic measurements, constraining possible active fault geometry depending on data accuracy and distribution. Taking advantage of the high accuracy of GPS observations, DInSAR position time series have been recalibrated, in order to obtain two complementary datasets providing a dense and wide interseismic deformation pattern.
Geodetic evidence of a regional uplift in Northern Apennines (Italy) from integration of GPS and InSAR measurements
A Pepe;G Solaro;
2016
Abstract
The Northern Apennines are one of the main intriguing areas thanks to a complex pattern of thrusts, folds and normal faults, due to the superposition of two different tectonic processes: a compressional phase forming E-NE verging thrusts and folds, and an extensional one generating NW-SE trending normal faults bounding intramountain basins. These tectonic processes are still simultaneously active, as documented by geodetic (Bennett et al., 2012), geologic (Martini and Sagri, 1993) and seismological (Pondrelli et al., 2006) data. In this work we studied in particular the interseismic deformation occurring across the Umbria-Marche sector of Apennines, presenting an integration of GPS and InSAR measurements. Principal deformation processes occurring in the upper crust are well detected by geodetic interseismic measurements, constraining possible active fault geometry depending on data accuracy and distribution. Taking advantage of the high accuracy of GPS observations, DInSAR position time series have been recalibrated, in order to obtain two complementary datasets providing a dense and wide interseismic deformation pattern.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
