Naslov
Fluviokarst of Velebit Mt. (Croatia)

Autori
Perica, Dražen ; Buzjak, Nenad

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
9th International Karstological School

Mjesto i datum
Postojna, Slovenija, 26.06.2001. - 29.06.2001

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
karstification; fluviokarst morphology; cave

Sažetak
The origin and evolution of fluviokarst features on Velebit Mt. is conditioned by hydrogeological beds that build it. Since most of its structure is developed in permeable limestone beds fluviokarst forms are rare. Besides hydrogeological characteristics of the beds important role in their development has slope inclination. It determines the coefficient of surface runoff and therefore the amount of karst corrosion. Among fluviokarst forms ponors, blind valleys, dry and hanging valleys, canyons and poljes were mostly developed. A nice example of blind valley is one of Crbo vrilo creek (near Baške Oštarije). The specific relief form is valley of Bunovac on the NE slope of southern Velebit. It consists of two blind valleys formed at contact between Upper Triassic clastites and partially impermeable Ladinian limestones and dolomites. Fluviokarstic process has important role in development of speleological features. Combination of fluvial process and corrosion is well marked in the phreatic phase of speleogenesis when passages are fully filled by water of changeable level. According to their hydrogeological role speleological features of research area can be classified as percolating features, ponors and springs.

Izvorni jezik
Engleski

Znanstvena područja
Geografija

POVEZANOST RADA