Scientific publications

One of the basic requirements for a commercially usable natural stone deposit is the soundness, which means sparse enough interval of fractures and joints. One of the methods to study the soundness is ground penetrating radar, also called geo-radar. It uses high frequency (10 MHz to 3,000 MHz) electromagnetic pulses sent by a transmitter, reflecting back from the discontinuities of the rock to the receiver, forming a continuous profile. In this study the geo-radar measurements were done in a net of 30 by 30 meters with profile interval of 1 meter. The aim was to produce data for 3D visualization. The data was visualized as cross-sections and as an animation giving a more detailed and more easily interpretable view. The 3D visualization also reveals better the discontinuous nature of the fracture reflections and their tendency to proceed as a front following the directions observed as the general fracture pattern of the deposit.