Naslov
Hydrogeologic investigation of karst system properties by common use of diverse methods: a case study of Lička Jesenica springs in Dinaric karst of Croatia

Autori
Terzić, Josip ; Stroj, Andrej ; Frangen, Tihomir

Izvornik
Hydrological processes (0885-6087) 26 (2012), 21; 3302-3311

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
karst hydrogeology; spring hydrograph; chemograph; time-series analysis; geophysical surveys; groundwater protection

Sažetak
Lička Jesenica is a sinking river situated in the Dinaric karst environment of the Lika region of Croatia. The two main karst springs, Veliko Vrelo and Malo Vrelo, provide the majority of Lička Jesenica’s water. Because of the quality and abundance of the water they contain, these springs are strategically important to the public water supply. Previous knowledge regarding the springs` karst system has been negligible. Therefore, a bulk hydrogeological research program was conducted with the purposes of establishing protection zones and assessing the springs’ water-supply potential. The research work comprised the following methods: hydrogeological mapping, setting up of monitoring stations for evaluating discharge and water quality, time-series analyses (hydrograph – chemograph), hydrochemical analyses, and geophysical surveys. The main results and conclusions of the research include (1) confirmation that both springs drain a common aquifer ; (2) determination of the highly vulnerable nature of the karst systems ; (3) identification of the Veliko Vrelo Spring’s more direct connection to the aquifer-drainage system in comparison to the Malo Vrelo ; (4) estimation of the positions and depths of the springs` main feeding conduits ; (5) confirmation of the extent of the geologically presumed catchment area ; and (6) finally, establishment of sanitary protection zones.

Izvorni jezik
Engleski

Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo

POVEZANOST RADA