Veress Márton: A Bakony természettudományi kutatásának eredményei 23. - Covered karst evolution... (Zirc, 2000)

PICTURES

Pict. 12. Twin doline with ponor (Gy-12) Legend: 1. partial depression of main chimney (no 10 in Fig. 6); 2. partial depression of subsidiary chimney (no 11 in Fig. 6); 3. recent opening (probably formed during the initial opening of chimney no 12 in Fig. 6 to the surface) Pict. 13. Twin doline with ponor and doline with ponor on valley floor Legend: 1. Szilfakő Valley; 2. partial depression K-2; 3. partial depression K-3; 4. doline with ponor G-9