Download Cave Exploration in Slovenia: Discovering Over 350 New Caves by Martin Knez, Tadej Slabe PDF

By Martin Knez, Tadej Slabe

This publication specializes in the outlet and exploration of greater than 350 formerly undiscovered caves of the Slovenian Karst, came upon in the course of toll road building paintings. The summarizes the making plans of site visitors roads and offers the recent findings acquired in the course of building, in addition to reports on newly-discovered karst phenomena and karst waters and their protection.

Earthmoving paintings in the course of building has published a cross-section of the outside of the Classical Karst, lined karst with recognized underground stone forests and special karst in breccia. learn carried out in those caves has yielded a couple of new findings on how the karst floor and underground have been shaped, at the stream of water via karst aquifers, and at the evolution of karst on a number of varieties of rock and less than quite a few stipulations. The paintings used to be written by means of researchers from the ZRC SAZU Karst examine Institute and the Institute of Geology AS CR. The reader will enjoy the authors’ collaboration with planners and developers, which bargains useful insights for the making plans and execution in their personal actions in karst regions.

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Extra info for Cave Exploration in Slovenia: Discovering Over 350 New Caves During Motorway Construction on Classical Karst

Example text

At that time, the aquifer was encased in flysch high up and partly covered with it. The runoff from the flysch introduced loam and sand into the caves. After they had been dry for a while and featured flowstone deposits, flood waters filled the caves with fine-grained sediments in one of the last cave development phases. The alluvium sealed the cracks and withstood even the long periods of the aquifer development during which its surface lowered for several tens of metres. It thus appears that old unroofed caves are an important component of the karst surface, providing clues to the development of the aquifer.

We have proposed that the route running over it should be consolidated with concrete. Fine-grained alluvium was washed out onto the route from old caves which were located in the embankments of roadcuts. For this reason, the caves had to be walled up (Fig. 6). In addition, excavation works for the tunnel brought to light several old caves and shafts. They were small-scale and could be closed with the concrete rim of the tunnel. However, the caves in the ceiling of the tunnel could not be entered.

1999). Earthworks revealed that the karst surface is scattered with several distinct types of unroofed caves, which in itself are not an uncommon phenomena. e. individual doline-like forms that occur in strings, and oblong notches. Because the surface of the Karst region has lowered so dramatically (Kranjc 1997), there are old caves and shafts opening up all the time in the course of the construction of the motorways. Old caves are either void or filled with alluvium. The caves were formed as a part of a system of cavities in a period when impermeable rocks had enclosed the aquifer higher up, causing the ground water in the aquifer to be at a higher level.

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