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Title:Revealing subtle active tectonic deformation: integrating lidar, photogrammetry, field mapping, and geophysical surveys to assess the Late Quaternary activity of the Sava Fault (Southern Alps, Slovenia)
Authors:ID Jamšek Rupnik, Petra (Author)
ID Atanackov, Jure (Author)
ID Horn, Barbara (Author)
ID Mušič, Branko (Author)
ID Zajc, Marjana (Author)
ID Grützner, Christoph (Author)
ID Ustaszewski, Kamil (Author)
ID Tsukamoto, Sumiko (Author)
ID Novak, Matevž (Author)
ID Milanič, Blaž (Author)
ID Markelj, Anže (Author)
ID Ivančič, Kristina (Author)
ID Novak, Ana (Author)
ID Jež, Jernej (Author)
ID Žebre, Manja (Author)
ID Bavec, Miloš (Author)
ID Vrabec, Marko (Author)
Files:.pdf PDF - Presentation file, download (53,23 MB)
MD5: 322DB83E86FF21A38F913B1DCA7B2361
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo GeoZS - Geological Survey of Slovenia
Abstract:We applied an interdisciplinary approach to analyze the late Quaternary activity of the Sava Fault in the Slovenian Southern Alps. The Sava Fault is an active strike-slip fault, and part of the Periadriatic Fault System that accommodated the convergence of Adria and Europe. It is one of the longest faults in the Southern Alps. Using high-resolution digital elevation models from lidar and photogrammetric surveys, we were able to overcome the challenges of assessing fault activity in a region with intense surface processes, dense vegetation, and relatively low fault slip rates. By integrating remote sensing analysis, geomorphological mapping, structural geological investigations, and near-surface geophysics (electrical resistivity tomography and ground penetrating radar), we were able to find subtle geomorphological indicators, detect near-surface deformation, and show distributed surface deformation and a complex fault pattern. Using optically stimulated luminescence dating, we tentatively estimated a slip rate of 1.8 ± 0.4 mm/a for the last 27 ka, which exceeds previous estimates and suggests temporal variability in fault behavior. Our study highlights the importance of modern high-resolution remote sensing techniques and interdisciplinary approaches in detecting tectonic deformation in relatively low-strain rate environments with intense surface processes. We show that slip rates can vary significantly depending on the studied time window. This is a critical piece of information since slip rates are a key input parameter for seismic hazard studies.
Keywords:active fault, lidar, photogrammetry, tectonic geomorphology, structural geology, geophysics, electrical resistivity tomography, ground penetrating radar, slip rate, Sava Fault
Publication status:Published
Publication version:Version of Record
Publication date:23.04.2024
Publisher:MDPI
Year of publishing:2024
Number of pages:33 str.
Numbering:vol. 16, no. 9
PID:20.500.12556/DiRROS-18843 New window
UDC:551.1/.4
ISSN on article:2072-4292
DOI:10.3390/rs16091490 New window
COBISS.SI-ID:193873923 New window
Publication date in DiRROS:30.04.2024
Views:673
Downloads:293
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Record is a part of a journal

Title:Remote sensing
Shortened title:Remote sens.
Publisher:MDPI
ISSN:2072-4292
COBISS.SI-ID:32345133 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0419-2022
Name:Dinamična Zemlja

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0011-2019
Name:Regionalna geologija

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0195-2018
Name:Geookolje in geomateriali

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:Z1-3195-2021
Name:Karst3Dge – 3D geološko modeliranje za odkrivanje kenozojskega razvoja stika Jadranske mikroplošče in Dinaridov ter strukturnega vpliva na pojavljanje podzemne vode na Kraškem robu

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License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

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