DOI: 10.1007/s00531-016-1367-3
Scopus记录号: 2-s2.0-84978080574
论文题名: Postcollisional cooling history of the Eastern and Southern Alps and its linkage to Adria indentation
作者: Heberer B. ; Reverman R.L. ; Fellin M.G. ; Neubauer F. ; Dunkl I. ; Zattin M. ; Seward D. ; Genser J. ; Brack P.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2017
卷: 106, 期: 5 起始页码: 1557
结束页码: 1580
语种: 英语
英文关键词: Adria indentation
; Exhumation
; Low-temperature thermochronology
; Southern and Eastern Alps
Scopus关键词: apatite
; cooling
; deformation
; exhumation
; fission track dating
; foreland basin
; indentation
; Miocene
; rheology
; thermochronology
; Alps
; Eastern Alps
; Karawanken
; New Zealand
; South Island
; Southern Alps
; Tauern Window
英文摘要: Indentation of rigid blocks into rheologically weak orogens is generally associated with spatiotemporally variable vertical and lateral block extrusion. The European Eastern and Southern Alps are a prime example of microplate indentation, where most of the deformation was accommodated north of the crustal indenter within the Tauern Window. However, outside of this window only the broad late-stage exhumation pattern of the indented units as well as of the indenter itself is known. In this study we refine the exhumational pattern with new (U–Th–Sm)/He and fission-track thermochronology data on apatite from the Karawanken Mountains adjacent to the eastern Periadriatic fault and from the central-eastern Southern Alps. Apatite (U–Th–Sm)/He ages from the Karawanken Mountains range between 12 and 5 Ma and indicate an episode of fault-related exhumation leading to the formation of a positive flower structure and an associated peripheral foreland basin. In the Southern Alps, apatite (U–Th–Sm)/He and fission-track data combined with previous data also indicate a pulse of mainly Late Miocene exhumation, which was maximized along thrust systems, with highly differential amounts of displacement along individual structures. Our data contribute to mounting evidence for widespread Late Miocene tectonic activity, which followed a phase of major exhumation during strain localization in the Tauern Window. We attribute this exhumational phase and more distributed deformation during Adriatic indentation to a major change in boundary conditions operating on the orogen, likely due to a shift from a decoupled to a coupled system, possibly enhanced by a shift in convergence direction. © 2016, The Author(s). URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978080574&doi=10.1007%2fs00531-016-1367-3&partnerID=40&md5=8216c13ad32adcb37c8d53ec9413befe
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70009
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department of Geography and Geology, University of Salzburg, Hellbrunner Str. 34, Salzburg, Austria; Geological Institute, ETH Zürich, Sonneggstrasse 5, Zurich, Switzerland; Department of Earth and Planetary Sciences, University of California, Berkeley, Berkeley, CA, United States; Institute for Geochemistry and Petrology, ETH Zürich, Clausiusstrasse 25, Zurich, Switzerland; Geoscience Center, University of Göttingen, Goldschmidtstrasse 3, Göttingen, Germany; Department of Geosciences, University of Padua, Via G. Gradenigo 6, Padua, Italy; School of Geography, Environment and Earth Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
Recommended Citation:
Heberer B.,Reverman R.L.,Fellin M.G.,et al. Postcollisional cooling history of the Eastern and Southern Alps and its linkage to Adria indentation[J]. International Journal of Earth Sciences,2017-01-01,106(5)