DOI: 10.1007/s00531-016-1335-y
Scopus记录号: 2-s2.0-84966702521
论文题名: From nappe stacking to exhumation: Cretaceous tectonics in the Apuseni Mountains (Romania)
作者: Reiser M.K. ; Schuster R. ; Spikings R. ; Tropper P. ; Fügenschuh B.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2017
卷: 106, 期: 2 起始页码: 659
结束页码: 685
语种: 英语
英文关键词: Apuseni Mountains
; Ar–Ar
; Cretaceous
; Dacia
; Exhumation
; Geochronology
; Rb–Sr
; Tectonics
; Tisza
Scopus关键词: argon-argon dating
; Cretaceous
; deformation
; exhumation
; geochronology
; nappe
; rubidium-strontium dating
; tectonics
; Apuseni Mountains
; Carpathians
; Romania
英文摘要:
New Ar–Ar muscovite and Rb–Sr biotite age data in combination with structural analyses from the Apuseni Mountains provide new constraints on the timing and kinematics of deformation during the Cretaceous. Time–temperature paths from the structurally highest basement nappe of the Apuseni Mountains in combination with sedimentary data indicate exhumation and a position close to the surface after the Late Jurassic emplacement of the South Apuseni Ophiolites. Early Cretaceous Ar–Ar muscovite ages from structurally lower parts in the Biharia Nappe System (Dacia Mega-Unit) show cooling from medium-grade conditions. NE–SW-trending stretching lineation and associated kinematic indicators of this deformation phase (D1) are overprinted by top-NW-directed thrusting during D2. An Albian to Turonian age (110–90 Ma) is proposed for the main deformation (D2) that formed the present-day geometry of the nappe stack and led to a pervasive retrograde greenschist-facies overprint. Thermochronological and structural data from the Bihor Unit (Tisza Mega-Unit) allowed to establish E-directed differential exhumation during Early–Late Cretaceous times (D3.1). Brittle detachment faulting (D3.2) and the deposition of syn-extensional sediments indicate general uplift and partial surface exposure during the Late Cretaceous. Brittle conditions persist during the latest Cretaceous compressional overprint (D4). © 2016, The Author(s).
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84966702521&doi=10.1007%2fs00531-016-1335-y&partnerID=40&md5=374fb480d54912db8e980c6120aa9a4f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70060
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: Institut für Geologie, Universität Innsbruck, Innrain 52, Bruno Sander Haus, Innsbruck, Austria; Geologische Bundesanstalt, Neulinggasse 38, Vienna, Austria; Department of Mineralogy, University of Geneva, Rue des Maraîchers 13, office 42 (building B), Geneva 4, Switzerland; Institut für Mineralogie und Petrologie, Universität Innsbruck, Innrain 52, Bruno Sander Haus, Innsbruck, Austria
Recommended Citation:
Reiser M.K.,Schuster R.,Spikings R.,et al. From nappe stacking to exhumation: Cretaceous tectonics in the Apuseni Mountains (Romania)[J]. International Journal of Earth Sciences,2017-01-01,106(2)