HYDROGEOLOGICAL MAP OF LESSINI MOUNTAINS ... - CC-WaterS

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CARTA IDROGEOLOGICA DEI MONTI LESSINI - HYDROGEOLOGICAL MAP OF LESSINI MOUNTAINS The most common among hypogean forms are vertical development caves, such as, for example, the Spluga della Preta (near the Corno d’Aquilio), a drop of 877 m to create the third deepest cave of the Veneto Region and a space extent of 4518 m to give the fourth largest cave of Veneto. In addition to Spluga della Preta, the main caves in the area examined are Spurga delle Cadene (Dolcè) and the Lesi Abyss (Bosco Chiesanuova), with space developments of 1200 m and 472 m, respectively. More well-known karst morphologies are Covolo di Camposilvano (fig. 16), an imposing 83 m deep collapse dolines, and the Veja Bridge, near S. Anna d’Alfaedo, a hypogean complex consisting of a natural rock bridge that represents the non-collapsed portion of the vault of the initial chamber. More spectacular typical karst forms of the Lessini Mountains can be admired in the Sphinx Valley, in the vicinity of Camposilvano (fig. 17). Figure 16: Covolo di Camposilvano 12
CARTA IDROGEOLOGICA DEI MONTI LESSINI - HYDROGEOLOGICAL MAP OF LESSINI MOUNTAINS Figure 17: Sphinx Valley, near Camposilvano 3.2.1 The Sphinx Valley The Sphinx Valley area is recognised as a natural monument representing a karst landscape named “rock city” (figs. 13 and 17). The evolution of karst erosion combined with other physical-chemical crumbling processes have enlarged the pre-existing vertical discontinuities and karst fissures, thus creating karren and corridors in Rosso Ammonitico layers. This generated special stone blocks, either isolated or in groups, with typical parallelepipedon (fig. 18) or mushroom-like forms (fig. 19). The typical rock "mushrooms" have a "hat" of Rosso Ammonitico, that is more resistant to erosion, and "stalk" of the oolitic calcarenite belonging to the S. Vigilio Group, with a greater susceptibility to erosion. 13
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HYDROGEOLOGICAL MAP OF LESSINI MOUNTAINS ... - CC-WaterS

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