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Geomorphic evidence of recent activity along the Vodice thrust fault in the Ljubljana Basin (Slovenia) - a preliminary study
Stockholm University, Faculty of Science, Department of Physical Geography and Quaternary Geology.
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2013 (English)In: Annals of Geophysics, ISSN 1593-5213, E-ISSN 2037-416X, Vol. 56, no 6, S0680- p.Article in journal (Refereed) Published
Abstract [en]

We investigated two prominent, E-W trending scarps in Quaternary sediments, located close to the town of Vodice in the Ljubljana Basin (central Slovenia). By using detailed geomorphological analysis of the scarps, field surveying, and structural observations of deformed Quaternary sediments, we conclude that the scarps are the surface expression of a N-dipping thrust fault that has been active during the Quaternary. From Optically Stimulated Luminescence and Infrared Stimulated Luminescence dating of deformed Quaternary sediments we estimate a slip rate of 0.1 to 0.3 mm a(-1) in the last 133 ka. Using the published empirical fault-scaling relationships, we estimate that an earthquake of magnitude 5.9 to 6.5 may be expected on the Vodice thrust fault. The fault may, therefore, present a major seismic hazard for the densely populated and urbanised region of central Slovenia.

Place, publisher, year, edition, pages
2013. Vol. 56, no 6, S0680- p.
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:su:diva-104455DOI: 10.4401/ag-6252ISI: 000335834000012OAI: diva2:723226


Available from: 2014-06-10 Created: 2014-06-10 Last updated: 2014-06-10Bibliographically approved

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Preusser, Frank
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