Abstract
Previous views concerning the number and age of planation surfaces in the Polish segment of the Carpathians varied depending on the state of recognition of geological structure of the area. The most commonly accepted opinion says that at least three such surfaces, representing remnants of pre-existing landscapes, can be traced in the study region. These include the intramontane (Early Pliocene), foothills (Late Pliocene) and riverside (Early Pleistocene) levels. Scarce fission track data pertaining to the age of exhumation of the Carpathian orogen indicate that the preserved “planation surfaces” could not had formed before ca. 7 Ma. A possibility exists, however, that individual bevels could have been shaped at the same time at different altitudes, with respect to local base levels and differentiated bedrock resistance to erosion.
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