MOBNET pool of transportable seismic stations in European passive experiments
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Abstract
MOBNET pool of seismic stations of the Institute of Geophysics of the Czech Academy of Sciences has been created since nineties of the 20th century. It grew from a nucleus of 6 broad-band units (seismometer and data acqusition system) up to the current 80 portable stations for temporary installations. The need of having a dense network of transportable seismic stations to be installed temporarily in regions with different tectonics and to record data for detailed modelling of 3D anisotropic structure of the upper mantle, triggered formation of this pool. Since then, the pool equipment has been involved in several passive seismic experiments, both small- and international large-scale ones, which were in operation for only few months at the beginning up to several years nowadays. Data recorded during the experiments has contributed to different significant findings about the Earth, including those which revealed that the mantle lithosphere is formed by individual domains with their own tilted anisotropic fabrics. Changes of the fabric orientations mark boundaries of the domains amalgamated to cores of continental plates. Data from the passive experiments are essential for detailed research of the Earth structure and inferences about processes of plate formation.
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