Late stage differential exhumation of crustal blocks in the central Eastern Alps: Evidence from fission track and (U-Th)/He thermochronology

Thermal history modelling based on zircon- and apatite fission track and apatite (U–Th)/He data constrain and refine the near-surface exhumation of the south-eastern Tauern Window (Penninic units) and neighbouring Austroalpine basement units in the Eastern Alps. Fast exhumation on both sides of the...

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Main Authors: Wölfler, A., Dekant, C., Danišík, Martin, Kurz, W., Dunkl, I., Putiš, M., Frisch, W.
Format: Journal Article
Published: Blackwell Publishing Ltd 2008
Online Access:http://hdl.handle.net/20.500.11937/41110
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author Wölfler, A.
Dekant, C.
Danišík, Martin
Kurz, W.
Dunkl, I.
Putiš, M.
Frisch, W.
author_facet Wölfler, A.
Dekant, C.
Danišík, Martin
Kurz, W.
Dunkl, I.
Putiš, M.
Frisch, W.
author_sort Wölfler, A.
building Curtin Institutional Repository
collection Online Access
description Thermal history modelling based on zircon- and apatite fission track and apatite (U–Th)/He data constrain and refine the near-surface exhumation of the south-eastern Tauern Window (Penninic units) and neighbouring Austroalpine basement units in the Eastern Alps. Fast exhumation on both sides of the Penninic/Austroalpine boundary coincides with a period of lateral extrusion and tectonic denudation of the Penninic units in Miocene time (22–12 Ma). The jump to older ages occurs within the Austroalpine unit along the Polinik fault, which therefore defines the boundary between the tectonically denuded units and the hangingwall at that time. According to the different (U–Th)/He ages between the Penninic Hochalm- and Sonnblick Domes we demonstrate a differential cooling history of these two domes in the latest Miocene and early Pliocene.
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publishDate 2008
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spelling curtin-20.500.11937-411102017-09-13T14:28:47Z Late stage differential exhumation of crustal blocks in the central Eastern Alps: Evidence from fission track and (U-Th)/He thermochronology Wölfler, A. Dekant, C. Danišík, Martin Kurz, W. Dunkl, I. Putiš, M. Frisch, W. Thermal history modelling based on zircon- and apatite fission track and apatite (U–Th)/He data constrain and refine the near-surface exhumation of the south-eastern Tauern Window (Penninic units) and neighbouring Austroalpine basement units in the Eastern Alps. Fast exhumation on both sides of the Penninic/Austroalpine boundary coincides with a period of lateral extrusion and tectonic denudation of the Penninic units in Miocene time (22–12 Ma). The jump to older ages occurs within the Austroalpine unit along the Polinik fault, which therefore defines the boundary between the tectonically denuded units and the hangingwall at that time. According to the different (U–Th)/He ages between the Penninic Hochalm- and Sonnblick Domes we demonstrate a differential cooling history of these two domes in the latest Miocene and early Pliocene. 2008 Journal Article http://hdl.handle.net/20.500.11937/41110 10.1111/j.1365-3121.2008.00831.x Blackwell Publishing Ltd restricted
spellingShingle Wölfler, A.
Dekant, C.
Danišík, Martin
Kurz, W.
Dunkl, I.
Putiš, M.
Frisch, W.
Late stage differential exhumation of crustal blocks in the central Eastern Alps: Evidence from fission track and (U-Th)/He thermochronology
title Late stage differential exhumation of crustal blocks in the central Eastern Alps: Evidence from fission track and (U-Th)/He thermochronology
title_full Late stage differential exhumation of crustal blocks in the central Eastern Alps: Evidence from fission track and (U-Th)/He thermochronology
title_fullStr Late stage differential exhumation of crustal blocks in the central Eastern Alps: Evidence from fission track and (U-Th)/He thermochronology
title_full_unstemmed Late stage differential exhumation of crustal blocks in the central Eastern Alps: Evidence from fission track and (U-Th)/He thermochronology
title_short Late stage differential exhumation of crustal blocks in the central Eastern Alps: Evidence from fission track and (U-Th)/He thermochronology
title_sort late stage differential exhumation of crustal blocks in the central eastern alps: evidence from fission track and (u-th)/he thermochronology
url http://hdl.handle.net/20.500.11937/41110