Acceleration of Late Pleistocene activity of a Central European fault driven by ice loading

Štěpančíková, Petra; Rockwell, T.; Stemberk, Jakub; Rhodes, E. J.; Hartvich, Filip; Luttrell, Karen; Myers, Madeline; Tábořík, Petr; Rood, Dylan H.; Wechsler, Neta; Nývlt, Daniel; Ortuño, María; Hók, Jozef

doi:10.1016/j.epsl.2022.117596

Cited by 15 publications

(3 citation statements)

References 33 publications

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“…ERT is well established and is one of the most frequently used non-destructive shallow subsurface investigation methods in various research fields (e.g., [68]). It has been successfully used in numerous structural geology studies to determine various lithology and discontinuities associated with (active) faults [12,14,[69][70][71][72][73][74][75][76][77][78]. Its use is recommended to determine a suitable paleoseismological trench location and its depth, with an electrode spacing of 5 m generally suitable to reveal the broader resistivity distribution, while shorter (≤1 m) electrode spacing should be used to determine a more accurate trench location [79].…”

Section: Electrical Resistivity Tomography (Ert)mentioning

confidence: 99%

“…Using highresolution DEMs in such an environment can help to recognize small-scaled geomorphic indicators for fault activity, enabling us to infer fault slip rates (e.g., [3][4][5][6][7]) and locate paleoseismic trenches to study past seismicity (e.g., [8][9][10][11]). In addition to investigating surface deformation, shallow subsurface investigations, including geophysical techniques with a range of tens of meters, can confirm the presence of young tectonic deformation along faults, help to precisely constrain their location, and understand the shallow geometry of the deformation structure [8,[12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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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)

Jamšek Rupnik,

Atanackov,

Horn

et al. 2024

Remote Sensing

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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.

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Section: Electrical Resistivity Tomography (Ert)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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)

Jamšek Rupnik,

Atanackov,

Horn

et al. 2024

Remote Sensing

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“…The fluvial provenance of the fan is supported by the strata pattern characteristic of a piedmont, river rather than a lacustrine environment (Krzyszkowski et al 2019a). The weakness of this scenario is the multiplicity of deformation structures of different orientations which could theoretically be related to the SMF edge and the ice-sheet wall of the newly formed fan (Salamon 2009) or to neotectonic processes (Štěpančíková et al 2010(Štěpančíková et al , 2022(Štěpančíková et al , Novakova 2015. The second element unrelated to the river is the presence of massive tills (Dmm, etc.)…”

Section: Paleogeographic Interpretationmentioning

confidence: 99%

An examination of the glaciomarginal fan of the Odranian glaciation at the Mokrzeszów site, Sudetic Foreland, SW Poland

Krzyszkowski

Wachecka-Kotkowska

Skurzyński

2022

geol

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The article presents the results of research from the Mokrzeszów site in the Sudetic Foreland. Lithopetrographic and sedimentological analyses of sediments from the Middle Polish Glaciations (Early Saalian, Odranian, MIS6) in this area indicate the overrepresentation (90–95%) of large Scandinavian erratics. The deposits, representing a repetitive sequence of Gp-Gms-Sp-Sh/Sr(Dmm) lithofacies, accumulated during at least two episodes of glacial outburst floods and six sedimentary cycles. High-energy flows are estimated for the Gms and Gp facies at about 5 m∙s−1 and low-energy flows indicate 0.8 m∙s−1 for the Sp/Sh/Sr facies, to the lack of flow (Fm). The sedimentary sequences confirm the existence of a fan, which may have originated as a subaqueous steep coarse-grained fan in glacial-flow-lake-outburst floods that formed between the ice sheet front and the morphotectonic edge of the Sudetic Marginal Fault line and within the Roztoka-Mokrzeszów Graben, or as an aerial, piedmont fan on the Sudetic Marginal Fault edge. The sediments show discontinuous deformations – gently sloping faults and fractures from glacioisostatic stresses. The fault activity is probably related to the reactivation of the faults due to ice loading during or after the older Saalian glaciation.

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The Periglaciation of Europe

Oliva

Fernández‐Fernández²,

Nývlt³

2022

Periglacial Landscapes of Europe

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Acceleration of Late Pleistocene activity of a Central European fault driven by ice loading

Cited by 15 publications

References 33 publications

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)

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)

An examination of the glaciomarginal fan of the Odranian glaciation at the Mokrzeszów site, Sudetic Foreland, SW Poland

The Periglaciation of Europe

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