Middle to late Pleistocene uplift rate of the Hungarian Mountain Range at the Danube Bend, (Pannonian Basin) using in suti produced 3He

Zs Ruszkicskay-Rüdiger, T. J. Dunai, G. Bada, L. Fodor, E. Horváth

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Topography of the terraced Danube Bend area indicates fast incision of the Danube River, which was followed by its tributaries dissecting deeply the former terrace levels. These surfaces are vertically bended along the river course, indicating antecedent incision of the Danube into the SW-NE trending Hungarian Mountain Range (HMR). Timing and rate of the incision of the Danube into the HMR and consequently, the rate of vertical motions have remained unresolved so far. This study aims at quantifying the landscape evolution and neotectonic deformation of the central part of the HMR. We used terrace levels along the antecedent section of the Danube River to constrain its incision rate, which is a measure for the uplift rate of the HMR. Here we use 3He, a terrestrial in situ produced cosmogenic nuclide (TCN), to date uplifted geomorphologic levels along in the Danube Bend gorge. This method, first applied in the Carpathian-Pannonian system in the framework of present study, proved to be suitable for the quantification of landscape evolution in this area. Our 3He exposure age data suggest a maximum incision rate of ∼2.7 ± 0.1 mm/y for the last ∼170 ky. Considering likely effect of erosion a more conservative value of ∼1.6 mm/y for the last ∼270 ky, was obtained. Both rates are significantly higher than the incision rate of 0.41 mm/y of the Danube derived from previous geologic and geomorphic data for the last 360 ky. The formation of the terrace levels in the Danube Bend probably occurred during the last two glacial cycles (OIS 1-8). According to the exposure age data, there is no direct relationship between the terrace formation and climate in the Danube Bend. Incision of the Danube appears to be connected to the uplift of the HMR, obtained incision rate values can be taken as valid approximations of the uplift rate in the Danube Bend area.

Original languageEnglish
Pages (from-to)173-187
Number of pages15
JournalTectonophysics
Volume410
Issue number1-4
DOIs
Publication statusPublished - Dec 9 2005

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mountains
uplift
Pleistocene
basin
terrace
rivers
landscape evolution
river
tributaries
neotectonics
rate
mountain range
vertical motion
canyons
nuclides
gorge
climate
erosion
tributary
topography

Keywords

  • Cosmogenic He exposure age dating
  • Incision
  • Neotectonics
  • Pannonian Basin
  • River terraces
  • Uplift

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Geophysics

Cite this

Middle to late Pleistocene uplift rate of the Hungarian Mountain Range at the Danube Bend, (Pannonian Basin) using in suti produced 3He. / Ruszkicskay-Rüdiger, Zs; Dunai, T. J.; Bada, G.; Fodor, L.; Horváth, E.

In: Tectonophysics, Vol. 410, No. 1-4, 09.12.2005, p. 173-187.

Research output: Contribution to journalArticle

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abstract = "Topography of the terraced Danube Bend area indicates fast incision of the Danube River, which was followed by its tributaries dissecting deeply the former terrace levels. These surfaces are vertically bended along the river course, indicating antecedent incision of the Danube into the SW-NE trending Hungarian Mountain Range (HMR). Timing and rate of the incision of the Danube into the HMR and consequently, the rate of vertical motions have remained unresolved so far. This study aims at quantifying the landscape evolution and neotectonic deformation of the central part of the HMR. We used terrace levels along the antecedent section of the Danube River to constrain its incision rate, which is a measure for the uplift rate of the HMR. Here we use 3He, a terrestrial in situ produced cosmogenic nuclide (TCN), to date uplifted geomorphologic levels along in the Danube Bend gorge. This method, first applied in the Carpathian-Pannonian system in the framework of present study, proved to be suitable for the quantification of landscape evolution in this area. Our 3He exposure age data suggest a maximum incision rate of ∼2.7 ± 0.1 mm/y for the last ∼170 ky. Considering likely effect of erosion a more conservative value of ∼1.6 mm/y for the last ∼270 ky, was obtained. Both rates are significantly higher than the incision rate of 0.41 mm/y of the Danube derived from previous geologic and geomorphic data for the last 360 ky. The formation of the terrace levels in the Danube Bend probably occurred during the last two glacial cycles (OIS 1-8). According to the exposure age data, there is no direct relationship between the terrace formation and climate in the Danube Bend. Incision of the Danube appears to be connected to the uplift of the HMR, obtained incision rate values can be taken as valid approximations of the uplift rate in the Danube Bend area.",
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