Physical and Chemical Research in Velebita Pit (Croatia)

  • Dalibor Paar Faculty of Science and Mathematics, Bijenička 32, Zagreb
  • Magdalena Ujević Croatian National Institute of Public Health, Rockefellerova 7, Zagreb
  • Darko Bakšić Faculty of Forestry, Svetošimunska 25, Zagreb Speleological Section Velebit, Radićeva 23, Zagreb
  • Damir Lacković Croatian Natural History Museum, Demetrova 1, Zagreb Speleological Section Velebit, Radićeva 23, Zagreb
  • Ana Čop Speleological Section Velebit, Radićeva 23, Zagreb
  • Vanja Radolić Department of Physics, University of Osijek, P.O. Box 125, Osijek

Abstract

We have performed measurements of the cave microclimate, water quality parameters and radon concentration to a depth of -1000 m in Velebita Cave system (Northern Velebit, Croa­tia). The results were analyzed as a function of the cave depth and geomorphological characteristics. Two different air tem­perature gradients were obtained, which can be attributed to a cave morphology and air circulation in the upper part of the pit. The water quality parameters show that the studied waters are poorly mineralized and are of weakly alkaline type. Water chemistry is probably predominantly controlled by the petrog­raphy of the bedrock (limestone) and the cave morphology. Water in the cave is not affected by pollution. The average value of radon concentration is rather low, much lower than in some other Croatian caves.

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Published
2012-11-12
How to Cite
1.
Paar D, Ujević M, Bakšić D, Lacković D, Čop A, Radolić V. Physical and Chemical Research in Velebita Pit (Croatia). AC [Internet]. 2012Nov.12 [cited 2021Dec.3];37(2-3). Available from: https://ojs.zrc-sazu.si/carsologica/article/view/151
Section
Original papers