Subsidence hazards in different types of karst: evolutionary and speleogenetic approach

Abstract

The typology of karst, based on distinguishing the successive stages of general hydrogeologicali evolution, between which major boundary conditions and the overall circulation pattem change considerabliy, gives a natural clue, properly to classify and tie together karst breakdown settings, speleogenetic styles and breakdown development mechanisms. Subsidence hazards vary substantially between the different karst types, so that classifying individual karst according to typology can provide an integrated general assessment. This provides a useful basis for selection and realization of region- and site-specific assessment schemes and management strategies. Intrastratal karst types, subjacent karst in particular, are most potent in generating subsidence problems. Exposed karst types, especially open karst, are the least likely to pose subsidence hazard problems, despite them being recognized more obviously as karstic areas.

Keywords

• karst types
• karst subsidence hazard assessment
• karst breakdown mechanisms