P024 RECOGNITION OF KARST STRUCTURE USING REFRACTION TOMOGRAPHY Abstract 1 The results of location of karst wells and probable hydraulic connections between them in limestone massif using the refraction tomography are presented. Seismic modeling was based on refraction horizon recognition in the first stage and tomographic processing of P-wave and S-wave velocity changes in the second one. The studies were carried out on the terrain neighboring to the wall of abandoned quarry. The results of tomography were correlated with karst forms observed on the quarry’s wall. The studies showed the sufficient usability of refraction tomography for recognition of karst forms


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