Table 7: The shaft groups of the mountains according to karst areas and some characteristics of their development environment.
Karst area | Present karst type | Surface elevation (m) | Elevation of karst water level(m) | Thickness of local vadose zone (m) | Number of karst depressions | Average depth of explored shafts1 | Average specific shaft length of explored caves | Shaft genetics |
Kab Hill | Concealed and mixed allogenic-autogenic karst | 400-450 | 350 | 50-100 | 402 | 23.53 (11) | 3.89 | Karst water and surface flood shaft development |
Tési Plateau | Concealed karst | 420-480 | 200 | 220-280 | 137 | 30.13 (46) | 2.73 | |
Hárskút basin | Concealed karst | 460-500 | 250 | 210-250 | 60 | 12.07 (7) | 2.04 | Weak surface flood and karst water shaft development |
Eleven Förtés doline group | Concealed karst | 675 | 230 | 445 | 9 | 10.25 (4) | 1.00 | Surface flood shaft development |
Environs of Márvány Valley | Concealed karst | 410-620 | 180 | 230-440 | 120 | 7.17 (3) | 1.20 | |
Area between Som Hill and Száraz-Gerence Valley | Concealed karst | 500-600 | 250 | 250-350 | 76 | 14.00 (5) | 1.43 | |
Keszthely Mountains | Bare or concealed karst | 400-420 | 115 | 285-305 | 202 | 62.7 (7) | 42.64 | At a small amount of surface water supply at tectonic shafts |
1In brackets the number of the shafts taken into consideration; 2Estimated data.