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001-es BibID:	BIBFORM120640
035-os BibID:	(WoS)001125462000001 (Scopus)85181740627
Első szerző:	Temovski, Marjan
Cím:	Pleistocene valley incision, landscape evolution and inferred tectonic uplift in the central parts of the Balkan Peninsula : Insights from the geochronology of cave deposits in the lower part of Crna Reka basin (N. Macedonia) / Temovski, Marjan; Wieser, Alexander; Marchhart, Oscar; Braun, Mihály; Madarász, Balázs; Kiss, Gabriella Ilona; Palcsu, László; Ruszkiczay-Rüdiger, Zsófia
Dátum:	2024
ISSN:	0169-555X
Megjegyzések:	Although the general geomorphology is reasonably well understood, not much information is available on the incision rates of rivers and related tectonic uplift in the central parts of the Balkan Peninsula. Caves in the lower part of Crna Reka drainage (N. Macedonia) provide the possibility to reconstruct the Neogene-Quaternary evolution of this area, as previous research has identified two major cave development phases: one related to Pliocene-Early Pleistocene basin infilling and establishment of lacustrine environments, and a subsequent cave development phase related to valley incision due to draining of the lacustrine systems and tectonic uplift. Here, we present new geochronological data obtained by U-Th dating on speleothems and cosmogenic nuclide burial age determination of clastic cave sediments, that provide time constraints on the Pleistocene karst and valley evolution, and an insight into the related tectonic uplift. The obtained cosmogenic nuclide burial age (2.1 +/- 0.5 Ma) of the clastic cave sediments from Temna Pestera - Dragozel, further supports previous results on placing the onset of the draining of the Pliocene lakes in Macedonia in the Early Pleistocene. The similar timing obtained for the downstream and upstream parts of Crna Reka drainage suggests that the draining was more likely initiated by regional uplift, rather than headward erosion related to subsidence in the Aegean Sea. The Middle to Late Pleistocene age of the dated speleothems agrees well with the existing conceptual model for karst and landscape evolution in the area. The cumulative valley incision rates based on these radiometric data show an increase towards the present, with values of <0.1 m/ka in Early Pleistocene, increasing to similar to 0.2-0.5 m/ka in Middle Pleistocene, and up to 1 m/ka in Late Pleistocene. They are lower than the measured uplift rates in the area (1.1-1.2 m/ka), and mostly overlap with the range of GPS-based vertical deformation rates in the Hellenides. Higher Middle to Late Pleistocene uplift rate is inferred in the downstream part of Crna Reka, an area in the Vardar zone bounded by seismogenic faults, than in the upstream part, at the easternmost edge of the Pelagonian massif.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Geomorphology. - 445 (2024), p. 1-19. -
További szerzők:	Wieser, Alexander Marchhart, Oscar Braun Mihály (1966-) (vegyész, analitikus) Madarász Balázs Kiss Gabriella Ilona (1992-) (vegyész) Palcsu László (1975-) (fizikus) Ruszkiczay-Rüdiger Zsófia
Pályázati támogatás:	OTKA FK 124807 OTKA GINOP-2.3.2-15-2016-00009 GINOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM090692
Első szerző:	Temovski, Marjan
Cím:	Multi-method geochemical characterization of groundwater from a hypogene karst system / Temovski Marjan, Túri Marianna, Futó István, Braun Mihály, Molnár Mihály, Palcsu László
Dátum:	2021
ISSN:	1431-2174
Megjegyzések:	An approach, combining several geochemical methods, was used to determine the groundwater properties and components of a hypogene karst system, where sampling is restricted only to the spring sites, and with a limited number of available sampling locations. Radiogenic isotopes (3H, 14C) were used to constrain the groundwater mean residence time and separate different groundwater components. Noble gases, stable isotopes of water (?18O, ?2H), dissolved inorganic carbon (?13C) and dissolved sulfate (?34S, ?18O), and major ion and trace element composition were used to identify the source of water, its chemical evolution and water?rock interactions, as well as to identify the contribution and composition of endogenic gases. This approach was applied to three low-temperature thermal springs located in Mariovo (North Macedonia) associated with fossil hypogene caves, previously identified by morphological and geochemical studies of caves and cave deposits. Based on the obtained results, the main studied springs represent an output part of a regional hypogene karst groundwater system with a deep-circulating (~1 km), old (~15 ka), thermal (?60 ?C) water, which mixes with young (<50 years), cold (<14 ?C) and shallow epigene karst groundwater. The output parts are structurally controlled, at the interception of low topography and deep faults, along which the groundwater interacts with deep-seated gases, dominantly CO2 of metamorphic origin (?13C of +4.5? VPDB), with some contribution of mantle helium. The thermal karst groundwater interacts at depth with volcanic rocks from the nearby Neogene-Quaternary volcanic complex, as well as with metamorphic basement rocks and granitoids.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk hipogén karszt stabil izotóp Észak-Macedónia karsztvíz
Megjelenés:	Hydrogeology Journal. - 29 (2021), p. 1129-1152. -
További szerzők:	Túri Marianna (1988-) (geográfus-geoinformatikus) Futó István (fizikus) Braun Mihály (1966-) (vegyész, analitikus) Molnár Mihály (1974-) (fizikus) Palcsu László (1975-) (fizikus)
Pályázati támogatás:	GINOP-2.3.2-15-2016-00009 GINOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: