Manifestations of corrosion due to water mixing under conditions of caves not filled with water

Abstract

«Blind» cavities of ellipsoidal cross-section on caves' walls and ceiling-so called «Korrosionskolke»-result from the corrosion due to mixing two non-agressive water masses forming together an aggressive mixture, According to A. Bogli the cavities are formed when surface water seeps along fissures and mixes with karstic water filling the cave itself. Studies of multi-layered cave system Kudaro in South Osetia have brought the author to the conclusion that the «Korrosionskolke» may be formed if the water seeping along fissures mixes with condensed water, the cave itself not being filled with water.