Geološki model Kanina s speleološko analizo

Špetič, Matic (author), Verbovšek, Timotej (mentor), Gabrovšek, Franci (comentor)

V diplomskem delu je predstavljen tridimenzionalni geološki model Kaninskega masiva, izdelan v programskem okolju Visual Karsys. Namen dela je bil združiti obstoječe geološke, hidrogeološke in speleološke podatke ter z njihovo prostorsko primerjavo izboljšati razumevanje strukture masiva, razporeditve podzemne vode in razvoja jamskih sistemov. Model sem izdelal na podlagi digitalnega modela reliefa, geološke karte in petnajstih geoloških profilov. Vanj sem vključil glavne litološke enote, pomembnejše prelomne strukture, izvire ter izbrane jamske poligone. Geološko zgradbo sem prikazal s sedmimi prerezi modela, podzemno vodo pa sem uspešno zmodeliral za izvire Boka, Goriuda, Možnica in Sella Nevea. Lokacija obviselega vodnega telesa v zaledju izvira Boka je bila potrjena s koordinatami jamskih sifonov, rezultati podzemne vode izvirov Možnica in Sella Nevea pa kažejo možnost, da imata izvira skupno podzemno vodo. Vpliv geološke zgradbe na razvoj jamskih sistemov sem preučeval s primerjavo poteka jam glede na prelomne strukture in litološko mejo dachsteinskega apnenca in glavnega dolomita. Analiza poteka jamskih rovov je pokazala, da je njihov razvoj močno povezan s prelomnimi strukturami, medtem ko se vpliv meje med dachsteinskim apnencem in glavnim dolomitom prostorsko spreminja. Nekatere jame se ob stiku z dolomitom usmerijo vodoravno v epifreatične rove, druge pa se skozi glavni dolomit kot brezna nadaljujejo navpično, kar kaže na njegovo prostorsko spremenljivo zakraselost in prepustnost. Primerjava jam na Kaninskih podih in Rombonu nakazuje, da je na njihov razvoj vplivala tudi oblika Kaninskega nariva. Na Rombonu potek jam sledi obliki narivne ploskve, na Kaninskih podih pa ne, saj so jame razvite vertikalno do erozijske baze. Izdelani model omogoča prostorski prikaz geološke strukture, podzemne vode in jam ter predstavlja možno izhodišče za nadaljnje geološke, hidrogeološke in speleološke raziskave Kanina.

• Language: Slovenian
• Keywords: Geološki model, Kanin, Visual Karsys, struktura, podzemna voda, potek jamskih rovov
• Work type: Bachelor thesis/paper
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Year: 2026
• PID: 20.500.12556/RUL-190787
• Publication date in RUL: 04.11.2026

Secondary language

• Language: English
• Title: Geological model of Kanin with a speleological analysis

Abstract

This bachelor’s thesis presents a three-dimensional geological model of the Kanin Massif developed in the Visual Karsys software environment. The aim of the study was to integrate existing geological, hydrogeological and speleological data and, through their spatial comparison, improve the understanding of the massif’s geological structure, groundwater distribution and cave-system development. I constructed the model using a digital elevation model, a geological map and fifteen geological cross-sections. It includes the main lithological units, major fault structures, springs and selected cave survey centre lines. I illustrated the geological structure using seven model cross-sections and successfully modelled the groundwater systems associated with the Boka, Goriuda, Možnica and Sella Nevea springs. The location of the perched groundwater body in the catchment of the Boka spring was confirmed by the coordinates of cave sumps, while the groundwater-modelling results for the Možnica and Sella Nevea springs suggest that the two springs may share a common groundwater body. I investigated the influence of the geological structure on cave-system development by comparing the course of cave passages with fault structures and the lithological boundary between the Dachstein Limestone and the Main Dolomite. The analysis showed that cave-passage development is strongly associated with fault structures, whereas the influence of the boundary between the Dachstein Limestone and the Main Dolomite varies spatially. At the contact with the dolomite, some caves transition into horizontal epiphreatic passages, while others continue vertically through the Main Dolomite as shafts, indicating spatial variations in its degree of karstification and permeability. A comparison of caves in the Kaninski podi and Rombon areas suggests that their development was also influenced by the geometry of the Kanin Thrust. On Rombon, the cave passages follow the geometry of the thrust plane, whereas in the Kaninski podi area they do not, as the caves extend vertically down to the erosional base level. The resulting model provides a spatial representation of the geological structure, groundwater and caves and may serve as a basis for further geological, hydrogeological and speleological research on the Kanin Massif.

• Keywords: Geological model, Kanin, Visual Karsys, structure, groundwater, cave-passage development