Igor Turchinov

Mineraly (siarczany, weglany, krzemiany, tlenki i wodorotlenki) powstale w pustkach krasowych w gipsach badenskich są wynikiem krystalizacji: ze swobodnie plynącej wody po utracie dwutlenku wegla; po ewaporacji cienkiej warstewki wody; po ewaporacji wyciekającej wody interstycjalnej; w ilowych wypelnieniach pustek; z wody wystepującej w szczelinach; subakwalnej; z aerozolow; zeli; lodu; a takze precypitacji biochemicznej. Procesy powstawania mineralow w badanych pustkach krasowych są niskotemperaturowe. Przewazają speleotemy powstale w warunkach subaeralnych, a ich wzrost byl warunkowany przez prądy powietrza w jaskiniach. MINERAL FORMATION IN KARST CAVITIES OF THE MIDDLE MIOCENE BADENIAN GYPSUM IN THE CARPATHIAN FOREDEEP (UKRAINE AND POLAND) Summary MineraIs (sulphates, carbonates, silicates, oxides and hydroxides) occurring in karst cavities of the Badenian gypsum originated due to the following processes: crystallization from free flowing water after carbon dioxide loss; crystall...

In the middle Miocene Badenian evaporite basin of the Carpathian foreland basin, broad zones of sulphate deposits occur in the marginal parts, and narrow zones of chloride sediments are restricted to the basin center (Fig. 1). The origin of these evaporites is related to the salinity crisis at the end of Middle Badenian. The time and facies relations of evaporites occurring in marginal and central parts of the Carpathian foreland basin are still unc1ear and different correlation has been proposed for particular parts of the basin (Petrichenko et al., 1997). However, it is possible to correlate particular mar ker beds in both domains over a distance of hundreds of kilometers (e.g. Garlicki, 1994; Peryt et al., 1994, 1997) suggesting common controls of evaporite deposition regardless of the geological setting. In the lower part of the gypsum section in the peripheral part of the basin, a unit built of blocky crystalline intergrowths occurs (see photo on the front page of this issue). ...

LITHOLOGICAL CONTROLS ON DEVELOPMENT OF KARST PROCESSES IN THE BADENIAN GYPSUM OF THE CARPATHIAN FOREDEEP (SOUTHERN POLAND AND WEST UKRAINE) Summary Karst phenomena abound in the Badenian gypsum of the Carpathian Foredeep area. An important factor in development of karst processes in the region is lithological-facies characteristics of deposits which underwent karstification. The Badenian gypsum shows a considerable lateral and vertical lithological-facies variability being result of conditions of sedimentation and diagenesis (Fig. 2). Systems of joints were formed in the gypsum and they controlled the development of karst forms (Fig. 3). Boundaries between deposits showing different lithological-facies characteristics, control spacial distribution of subsurface karst voids and structural-textural features of the gypsum control the morphology of these voids (Fig. 4). Lithological-facies characteristics influence also distribution and morphology of surficial karst forms and the featu...