Simulated annealing in 3-D seismic modelling and elastic structure of the mediterranean basin

摘要: Abstract 3-D elastic structures images of the Mediterranean basin are obtained by solving a tomographic problem means simulated annealing algorithm. The database consists local Rayleigh wave group velocities determined for fundamental mode in 10–90s period range. These were from surface wavetrains recorded at very broad band stations MEDNET network. From methodological point view, characteristics algorithm and amount time required computation suggest implementation parallel computational procedures to shorten time. According thermodynamic analogies used algorithm, we propose an alternative procedure estimate uncertainties correlations variables defining model (shear layer thicknesses) without necessity computing partial derivatives. applied shows, as main results, relevant differences eastern western pans basin, specially down 60 km. changes position top bottom asthenosphere surfaces can also be followed throughout basin; remarkably, these agreement with some tectonic features.