Plio-Pleistocene silt/clay-rich deposits and paleo-karst fissure sediments from sites of the northern and southern parts of the Carpathian Basin were investigated. These materials were supposed to be mixed during transport before being captured in karstified fissures. Evidence that the eolian fissure sediments of Plio-Pleistocene age in the older Triassic–Cretaceous limestones are derived from eolian silt and clay includes compositional and textural matches, especially decreasing grain-size trends observed downwards from the paleo-surface of the former landscape. Various environmental factors could be recognized by the statistical evaluation of grain-size distribution curves of fissure fillings sediments, such as the effects of eolian transport, parent rock type, weathering, and other sediment transport processes. Grain-size distribution curves with a single maximum in the silt size range are typical for the overlying siltstone debris, for the redeposited loess and red paleosol underlying the loess. Red clay fissure fillings yield bimodal grain-size distribution curves with maxima both in the clay and silt fractions. The research reported in this paper identifies for the first time the presence of eolian deposits in karst fissures of the Carpathian Basin and investigates the characteristics and origin.

研究了喀尔巴阡盆地北部和南部地区的上新世更新世粉砂/富含粘土的沉积物和古岩溶裂隙沉积物。这些材料本应在运输过程中混合，然后才被捕获在喀斯特裂隙中。在三叠纪-白垩纪较老的三叠纪-白垩纪石灰岩中，上新世更新世的风成裂隙沉积物的证据包括成分和质地的匹配，尤其是从旧地貌的古表面向下观察到的晶粒尺寸趋势减小。通过对裂隙填充物沉积物的粒度分布曲线进行统计评估，可以识别出各种环境因素，例如风沙运移，母岩类型，风化作用和其他沉积物运移过程的影响。对于上覆的粉砂岩碎屑，再沉积的黄土和黄土下面的红色古土壤，典型的粒度分布曲线在粉砂大小范围内为单个最大值。红色粘土裂缝填充物产生双峰粒度分布曲线，在粘土和粉砂组分中均具有最大值。本文报道的研究首次确定了喀尔巴阡盆地喀斯特裂隙中存在风积物，并调查了特征和成因。