ABSTRACT
ABSTRACT: The fracture network and its fracture sets predominantly determine the permeability and storage capacity of fractured aquifers. The hydrogeological effectiveness of fracture sets can be statistically characterised by analysing the geological spatial attributes (trend, plunge, frequency) and the hydraulic relevant attributes (aperture, length, linear degree of separation, termination) of fractures. Fracture attributes are recorded at an exposure and along a borehole in the area of Koralm, Austria, both belonging geologically to the Plattengneis unit of the Koralm Complex having three fracture sets. It could be shown with discrete fracture modelling that for this geological unit the fracture set volumes correlate with depth by an exponential function.
