Abstract
Summary Labyrinth and maze cave networks are a conspicuous feature in formerly glaciated stripe karst in Scandinavia. Often found in topographically “impossible” situations, their genesis is attributed to glacial ice-contact conditions. This is further supported by observing that individual networks may either be influent, effluent or through-flow; depending on the attitude of the host rock and former glacier directions. The ice-contact hypothesis is tested by using a finite difference, fracture network model where chemical and hydrological conditions can be varied. Subglacial chemistry alone (low partial pressure of CO 2 , low temperature) is not sufficient to favour mazes over linear caves. However, when coupled with high input saturation ratio, high and varied hydraulic gradients and glacial hydrology, the model produced cave patterns comparable in scale and complexity to our field examples.
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