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Geomorphological evidence of active tectonics in the Ljubljana Basin : doctoral dissertation
ID Jamšek Rupnik, Petra (Author), ID Vrabec, Marko (Mentor) More about this mentor... This link opens in a new window, ID Benedetti, Lucilla (Co-mentor)

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PID: 20.500.12556/rul/e9352b5c-89ac-45da-a485-ceeca38c9b0b

Abstract
Ljubljanski bazen je najgosteje naseljeno, najbolj urbanizirano in gospodarsko najrazvitejše območje Slovenije, istočasno pa je to območje tudi zmerno seizmično aktivno z najmočnejšim zgodovinskim potresom leta 1895 (M 6.1, Imax VIII-IX EMS-98), ki je povzročil obsežno gmotno škodo in žrtve v Ljubljani. Kljub prepoznani potresni ogroženosti tega območja so prelomi, ob kateri bi lahko nastali močni potresi, slabo poznani. V doktorski disertaciji je predstavljena raziskava aktivnih prelomov v Ljubljanskem bazenu, izvedena s tektonsko-geomorfološkim pristopom. Aktivni prelomi so bili identificirani z geomorfološkim kartiranjem v regionalnem merilu na podlagi podatkov daljinskega zaznavanja. Desnozmični Savski prelom in reverzni Vodiški prelom sta bila podrobno raziskana z geomorfološkimi analizami prostorskih topografskih podatkov in terenskim delom. Študija teh dveh prelomov je bila usmerjena v opis geomorfoloških indikatorjev za aktivnost, določitev kinematike, geometrije in segmentacije preloma ter oceno premikov in starosti geomorfoloških indikatorjev. Pridobljeni podatki so omogočili kvantitativno določitev kvartarne aktivnosti Savskega in Vodiškega preloma. Poleg tega je bil z uporabo empiričnih zakonov in na podlagi geometrijskega tipa segmentacije ocenjen seizmogeni potencial obeh prelomov. Rezultati tega dela in obširen pregled dostopnih podatkov so omogočili predlagati strukturni in seizmotektonski model Ljubljanskega bazena, ki pojasnjuje kinematiko aktivnih prelomov in strukturni razvoj bazena ter omogoča nov vpogled v potresno nevarnost tega območja.

Language:English
Keywords:tektonika, prelomi, geomorfologija, Ljubljanski bazen, Slovenija
Work type:Doctoral dissertation
Typology:2.08 - Doctoral Dissertation
Organization:NTF - Faculty of Natural Sciences and Engineering
Place of publishing:Ljubljana
Publisher:[P. Jamšek Rupnik]
Year:2013
Number of pages:XXVIII, 214 str., [2] f. zganj. pril.
PID:20.500.12556/RUL-68488 This link opens in a new window
UDC:551.24(497.4)
COBISS.SI-ID:2225493 This link opens in a new window
Publication date in RUL:10.07.2015
Views:2232
Downloads:393
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Secondary language

Language:Slovenian
Title:Geomorfološki dokazi za aktivno tektoniko v Ljubljanskem bazenu
Abstract:
Ljubljana Basin is the most densely populated, highly urbanised and economically the highest developed part of Slovenia, experiencing moderate seismic activity with the strongest historical earthquake in 1895, M 6.1, Imax VIII-IX EMS-98, that devastated Ljubljana. Despite the recognised seismic risk faults capable of producing strong magnitude earthquakes are poorly known. This doctoral dissertation presents an investigation of active faults in the Ljubljana Basin using the approach of tectonic geomorphology. Active faults were identified with regional-scale geomorphologic mapping using remote sensing data. The right-lateral strike-slip Sava fault and reverse Vodice fault were investigated in detail with geomorphologic analysis of spatial topographic data and field survey. Study of these faults was focused on describing geomorphic indicators of activity, determining the fault kinematics, geometry and segmentation and on estimating offsets and ages of geomorphic markers. The obtained data alowed us to quantitatively constrain the Quaternary activity of Sava and Vodice faults. Furthermore, their seismogenic potential was estimated based on geometric type of segmentation using scaling laws. The results of this work and an extensive review of all available data enabled us to propose a structural and seismotectonic model of the Ljubljana Basin, explaining the kinematics of active faults, structural evolution of the basin and to give new insights on seismic hazard of this region.


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