20.500.12556/RUL-189825 Assessing the viability of electrical resistivity tomography for cirque sediment studies new data from the Slovenian Alps Investigating the thickness and composition of cirque sediments is essential for understanding postglacial geomorphic processes and constraining the timing of cirque deglaciation. Electrical resistivity tomography (ERT) offers a non-invasive means of investigating these subsurface deposits, but has rarely been applied to cirque environments. This study assesses ERT's capacity to differentiate glacial tills from postglacial sediments in two cirques with contrasting lithologies in the Slovenian Alps, accompanied by geomorphological mapping and grain size analysis. At the Mangrt cirque, ERT delineated the till-bedrock contact, revealing a till thickness of 2–8 m with resistivities of 100–900 Ωm, but could not differentiate tills from scree deposits. At the Raduha cirque, ERT differentiated till (120–600 Ωm) from fluvial sediments (20–200 Ωm), with the till thickness exceeding the 25–35 m depth of investigation. The difference in sediment thickness between the two cirques could be the result of lithological characteristics and their effect on glacial erosion and postglacial sediment dynamics. Karst drainage limited sediment supply and storage at the Mangrt cirque while weaker lithologies enabled prolonged paraglacial reworking and sediment deposition at the Raduha cirque, leading to a significant difference in sediment budgets. ERT is therefore a viable method for subsurface investigations of cirque sediments, particularly when paired with field mapping, and has provided tentative resistivity ranges for tills derived from two different lithologies. glacial geomorphology glacial sediments geomorphological mapping geomorphological suervey electrical resistivity tomography (ERT) grain size analysis Slovenia Julian Alps Kamnik-Savinja Alps glacialna geomorfologija ledeniški sedimenti geomorfološko kartiranje električna upornostna tomografija (ERT) analiza zrnatosti Slovenija Julijske Alpe Kamniško Savinjske Alpe true false true Angleški jezik Slovenski jezik Članek v reviji 2026-10-16 13:13:14 2026-10-16 13:13:21 2026-10-17 04:16:17 0000-00-00 00:00:00 2026 0 0 16 str. [article no.] 110554 Vol. 514 23. sep. 2026 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 2026-09-18 2026-09-23 911.2:551.32(497.4) 1872-695X 10.1016/j.geomorph.2026.110554 293639939 RAZ_Cof_Klemen_2026.pdf RAZ_Cof_Klemen_2026.pdf 1 6413554B0187E1C34AB44E0D168CCB93 711f59f9cc9ea4acfe1013b72aae6f37b1e6b2b73aef513e25270d7ec968a2f9 013d1fd3-c953-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=250689 https://www.sciencedirect.com/science/article/pii/S0169555X26003971 0 0d886dcc-c953-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=250690 Filozofska fakulteta 0 0 0