摘要：The origin and age of cave deposits, as well as palaeogeographical changes in the Bystrej catchmentduring the last ca. 250 ka, were reconstructed in Magurska, Kasprowa Ni¿nia, Goryczkowa, Kalacka and Bystrejcaves (the Bystrej Valley). The reconstruction is based on the study of corrosive forms, heavy mineral analysesand U-series dating of speleothems. Two generations of palaeoflows were distinguished by observations ofscallops and heavy mineral analyses. In the older stage, now abandoned caves drained massifs surrounding theBystrej Valley and part of an adjacent valley. The direction of palaeoflow changed as a result of the water captureafter Kasprowa Ni¿nia Cave came into being. In the later stages, the evolution of cave systems was controlled byglaciation-deglaciation cycles. Probably at this time, some caves located in the lowest parts of the massifs alsostarted to be formed. U-series speleothem dating allows the determination of five phases of speleothem deposition:ca. 220–150 ka, ca. 135–105 ka, ca. 95–70 ka, ca. 40–23 ka and during the Holocene
关键词：Cave evolution; scallops; heavy minerals; U-series speleothem dating; palaeohydrology; the Tatra Mts
