Geomorfološka i hidrološka obilježja izvora Zagorske Mrežnice

master's thesis

• Title (english): Geomorphological and hydrological characteristics of Zagorska Mrežnica spring
• Author: Petra Kovač-Konrad
• Mentor: Nenad Buzjak (mentor)
• Committee member: Nenad Buzjak (predsjednik povjerenstva)
• Committee member: Sanja Faivre (član povjerenstva)
• Committee member: Neven Bočić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geography); Zagreb
• Defense date and country: 2011-09-14, Croatia
• Scientific / art field, discipline and subdiscipline: INTERDISCIPLINARY AREAS OF KNOWLEDGE; Geography

Abstract

Izvor-špilja Zagorska Mrežnica nalazi se u selu Desmerice, nedaleko od grada Ogulina. Intenzivno je istraživan od 2006-2011. Cilj rada bio je istražiti potopljene podzemne dijelove izvora, izraditi speleološki nacrt te prikupiti podatke o geomorfološkim i hidrološkim obilježjima. Korištene su speleoronilačke tehnike. Istraživanjem je utvrđeno da se radi o preljevnom krškom izvoru nastalom na kontaktu propusnih i nepropusnih naslaga jurskih vapnenca i dolomita mezozojske starosti s razvijenom mrežom kanala i dvorana tlocrtne duljine 1134 m i maksimalne dubine od 21,5 m. Geomorfološka obilježja odraz su geoloških i hidrogeoloških značajki u freatičkim uvjetima speleogeneze što je jasno vidljivo iz morfologije podzemnog prostora te denudacijskim i akumulacijskim oblicima zabilježenim u izvoru. Hidrološka obilježja izvora u direktnoj su ovisnosti o količini i intenzitetu padalina te o hidrogeološkoj vezi s ponorima u zaleđu.

Abstract (english)

Cave-spring Zagorska Mrežnica is located in the village Desmerice, near the town of Ogulin. It has been intensivly investigated from 2006-2011. The goal was to explore the submerged parts of the spring, make a cave-map and collect data on geomorphological and hydrological characteristics. Cave diving tehniques were used. Research has found that it is owerflow karst spring originated at the contact between permeable and impermeable layers of Jurassic limestone and Mezozoic dolomite with a wide network of passages and halls total horizontal lenght of 1134 meters and maximum depth of 21,5 meters. Geomorphological features are reflection of geological and hidrogeological characteristics in terms of phreatic speleogenisis which is clearly evident from morphology of the underground space and denudation and accumulation forms recordet in the spring. Hydrological connection of the spring are directly dependent on the amount ond intensity of rainfall and hydrogeological connection with sink-holes in hinterland.

• Keywords: krški izvor; speleoronilačke tehnike; geomorfološka obilježja; hidrološka obilježja
• Keywords (english): karst spring; cave diving tehniques; geomorphological features; hydrological charactecteristics
• Language: croatian
• URN:NBN: urn:nbn:hr:217:215847
• Study programme: Title: Geography; specializations in: Physical Geography with Geoecology, Spatial Planning and Regional Development, Heritage and Tourism, Geographic Information Systems; Course: Physical Geography with Geoecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra geografije (magistar/magistra geografije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-01-09 20:45:02