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Abstracts UDC 551.435.8(560)

Mushin Eren & Zubeyde Hatipoglu-Bagci: Karst surface features of the hard laminated crust (caliche hardpan) in the Mersin area, southern Turkey

The study area is located in the Mersin province where caliches are widespread and occur in a variety of forms such as powdery, nodular, tubular, fracture-infill, laminar crust, hard laminated crust (caliche hardpan), pisolithic crust. The hard laminated crust shows distinctive karst surface features of karren. These include kamenitza, rillenkarren, solution pit and solution enlarged fracture (kluftkarren). First two karst features are common and closely associated with dome- and ridge-like morphologies termed caliche tepees or pseudo-anticlines. Kamenitzas or solution basins are dish-shaped depressions with flat bottom and sharp and overhanging sides which resulted from ponding water mostly at the top of caliche tepees. Rillenkarren are solutional flutes separated by sharp angular ridges, with length of less than 15 cm. They are well developed on the inclined surfaces of surface irregularities at or near the top of caliche tepees and form from sheet flow. Solution pits are narrow, cylindrical shaped karst troughs formed by stemflow drainage beneath trees. The kluftkarrens are products of dissolution by channelised surface water flowing along a fracture. The coexistence of caliche and karst features is important to indicate a climatic change from semiarid to humid conditions.

Keywords: karstification, karren, caliche, hard laminated crust (hardpan), Quaternary, Turkey.

Izvlecek UDK 551.435.8(560)

Mushin Eren & Zubeyde Hatipoglu-Bagci: Krake povrinske oblike trdih laminiranih skorij (kalkret) na obmocju province Mersin v juni Turciji

V clanku obravnavamo kalkrete v provinci Mersin v juni Turciji, ki so tam razirjene v tevilnih pojavnih oblikah. Na kalkretah se pojavljajo razlicne skalne oblike, kot so kavnice, deni lebici, korozijske vdolbinice in korozijsko razirjene razpoke. kavnice in deni lebici so povezani z tipicno morfologijo »kupol in grebenov«, imenovani kalkretni tepiji (angl. tepee structure) ali psevdo antiklinale. kavnice so korozijske oblike skledastih oblik z ravnim dnom in ostrimi previsnimi robovi, ki so nastale z zastajanjem vode na vrhu kalkretnih tepijev. Deni lebici so korozijski lebovi loceni z ostrimi grebeni, doline do 15 cm. Nastali so z raztapljanjem vodnega filma na nagnjenih povrinah, vecino blizu vrha kalkretnih tepijev. Korozijske vdolbinice so ozke cilindricni skalne oblike, nastale s korozijo raztopin iz drevesnih debel. Poklinaste kraplje (kluftkarren) so nastale z raztapljanjem...

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