Exhumation history of the Tatry Mountains, Western Carpathians, constrained by low-temperature thermochronology

M. Śmigielski*, H. D. Sinclair, F. M. Stuart, C. Persano, P. Krzywiec

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This study tests alternative models for the growth of the Tatry Mountains (Central Western Carpathians) by the application of low-temperature thermochronology. Zircon (U+Th)/He ages from the north of the range are mostly between 48 and 37Ma and indicate cooling prior to the onset of fore-arc sedimentation in the region (42-39Ma). In contrast, zircon (U+Th)/He ages in the south of the range are around 22Ma. Apatite fission track ages across the sampled sites range from 20 to 15Ma. Apatite (U+Th)/He ages range from 18 to 14Ma with little variation with elevation or horizontal location. Based on thermal modeling and tectonic reconstructions, these Miocene ages are interpreted as cooling in the hanging wall of a northward dipping thrust ramp in the current location of the sub-Tatric fault with cooling rates of ~20°C/Myr at ~22-14Ma. Modeled cooling histories require an abrupt deceleration in cooling after ~14Ma to

Original languageEnglish
JournalTectonics
Early online date23 Jan 2016
DOIs
Publication statusPublished - 15 Feb 2016

Keywords

  • (U+Th)/He
  • Apatite fission track
  • Central Western Carpathians
  • Exhumation
  • Tatry

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