Morales, José; Martín, José Benito; Martín, Rosa; Mancilla Perez, Flor de Lis; Heit, Benjamin; Yuan, Xiaohui
TRANsecta Sismica CORdillera BEtica (TRANSCORBE)
We carried out a passive seismic experiment formed by 50 broadband and short-period stations with an interstation distance of 3-4 km. These stations were in operation for 22 months, from 06/2013 to 05/2015. The seismic array (TRANSCORBE) was deployed in a linear configuration of 170 km length in a NW-SE direction. The southern edge of the prolife is located near the Mediterranean coast in Mazarrón (Murcia) crossing the Alhama de Murcia fault and the Cazorla Mountain range in the north. The main goal of this project is to study the crustal and upper mantle structures under the Eastern Betics mountain ranges and their variations along the different geological domains. It probes, from southeast to northwest, the Alboran domain (metamorphic rocks), the External zones (sedimentary rocks) and the Variscan terrains of the Iberian Massif. The proposed scientific work includes the analysis of the data using mainly P and S receiver functions, and velocity and attenuation tomographic techniques. The study area has undergone a complex tectonic evolution where slow WNW-ESE oblique convergence of Iberian and African plates coexists with a rapid westward rollback of a subducting slab. The inter-station distance allows us obtaining high-resolution images of the crustal structure essential to understand the tectonic evolution of the area and how the deformation produced by these processes is distributed among the involved geologic domains. This experiment was the results of a joint effort between the Instituto Andaluz de Geofísica (IAG), Granada University, and GFZ Potsdam.
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Ministerio de Economía y Competitividad, Spain, CGL2012-31472
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a; Martín, José Benito
a; Martín, Rosa
Mancilla Perez, Flor de Lis
b a Universidad de Granada, Granada, Spain, b German Research Centre for Geosciences GFZ, Potsdam, Germany
Passive seismic profile across the Easter Betic and Iberian Massif (TRANSCORBE)