20.500.12556/DiRROS-15264 Investigating peatland stratigraphy and development of the Šijec bog (Slovenia) using near-surface geophysical methods Owing to their anoxic environment, peatlands play an important role in the preservation of records documenting past atmospheric depositions. To determine past records, data on peat stratigraphy and bog development are needed. Ground penetrating radar (GPR) was used to determine the peat thickness and morphology of the Šijec bog on the Pokljuka plateau in Slovenia, which will serve as a basis for further geochemical studies. Information on the stratigraphy below the peat/clay boundary was acquired by applying electrical resistivity tomography (ERT). The GPR results reveal four depressions within the peat bog, which are separated by elevated ridges. Within the depressions the peat reaches a depth of 6–9 m. The edges of the bog are flat, with peat thickness ranging from 2 to 4 m. The reach of the GPR was complemented with manual peat probing. A comparison of the depths obtained using GPR and the peat probe reveals that the results of both methods correspond well in most locations. The ERT indicated similar peat depths; peat responds with high electrical resistivity. In contrast, clayey sediments with low resistivity are found below the peat. The peat depressions are underlain with larger clayey depressions reaching more than 20 m in thickness and represent lake sediments. The complementary geophysical methods proved to be an efficient approach with which we can delineate the peat morphology and the underlying stratigraphy. Both indicate bog formation from a lake with four deeper depressions, that are separated by glacial deposits. The results presented here show the potential for geophysical methods to infer formational processes in peatlands, showing the presence of a series of isolated basins that later coalesced into a single peat landform. This interpretation is consistent with previous conceptual models from studies in boreal regions. peatland ground penetrating radar electrical resistivity tomography peat probing peat thickness true false true Elsevier Angleški jezik Ni določen Delo ni kategorizirano 2022-07-07 11:19:05 2022-07-07 11:29:11 2022-08-21 03:36:23 0000-00-00 00:00:00 2021 0 0 15 str. Vol. 206 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 550.3 0341-8162 10.1016/j.catena.2021.105484 66109443 1-s2.0-S0341816221003428-main.pdf 1-s2.0-S0341816221003428-main.pdf 1 4227253ECA904FE5F14D9F955A138491 bc9e469a440645eabbbd97d857b505d897a018bc58716647abb117b7508867dd f4af7d93-17b6-11ed-b6b8-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=20052 Geološki zavod Slovenije 0 0 0