Ocena cech litogenetycznych piaskowców fliszowych na podstawie badań ultradźwiękowych

Non-destructive ultrasonic tests were used to determine the lithogenetic featuresresponsible for the anisotropy of flysch sandstones. The studied material consisted of the Godulaand Zakopane sandstones. These rocks are characterized by significant anisotropy of the geome-chanical properties. As a result of ultrasonic testing the characteristic directions of propagationof longitudinal waves were determined and subsequently correlated with the microscopic imageof thin sections as well as the evident orientation of joints observed in situ. The analysis showsthat the recorded changes in the propagation of ultrasonic waves indicate the privileged direc-tion resulting from both the orientation of mineral grains and spatial orientation of microcracks.It has a bearing on the direction of turbidity currents in the sedimentary basin and the variablestress field during the formation of the Carpathians.