Μελέτη τρισδιάστατης σεισμικής τομογραφίας

Monumental tumuli are important monuments of past human activity, and may contain burial structures of high cultural and historical value. Seismic tomography is used to investigate the internal structure of a monumental tumulus. Energy sources and recorders are placed on the periphery at the base of the tumulus. Travel time data are analysed and processed with three-dimensional tomographic inversion in order to construct images of the distribution of seismic velocity in the interior of the tumulus. Velocity variations are known to correlate well with the lithological character of the earth materials, thus providing important structural and lithological information of the tumulus. A case history from a Macedonian tumulus in northern Greece is presented. The results are interpreted in terms of evidence for possible man-made buried structures, such as tombs, walls, etc.; three-dimensional modelling is used to assist in the interpretation and evaluation of the significance and reliability of the results. Copyright © 2004 John Wiley & Sons, Ltd.