globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.epsl.2017.10.008
Scopus记录号: 2-s2.0-85033558785
论文题名:
A long-lived Late Cretaceous–early Eocene extensional province in Anatolia? Structural evidence from the Ivriz Detachment, southern central Turkey
作者: Gürer D.; Plunder A.; Kirst F.; Corfu F.; Schmid S.M.; van Hinsbergen D.J.J.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 481
起始页码: 111
结束页码: 124
语种: 英语
英文关键词: detachment ; Eastern Mediterranean tectonics ; extension ; HP rock exhumation ; rollback ; slab segmentation
Scopus关键词: Geology ; detachment ; Eastern Mediterranean ; extension ; HP rock exhumation ; rollback ; Mathematical models ; Cretaceous ; detachment fault ; Eocene ; exhumation ; extensional tectonics ; segmentation ; slab ; structural geology ; tectonic setting ; Anatolia ; Turkey
英文摘要: Central Anatolia exposes previously buried and metamorphosed, continent-derived rocks – the Kırşehir and Afyon zones – now covering an area of ∼300 × 400 km. So far, the exhumation history of these rocks has been poorly constrained. We show for the first time that the major, >120 km long, top-NE ‘Ivriz’ Detachment controlled the exhumation of the HP/LT metamorphic Afyon Zone in southern Central Anatolia. We date its activity at between the latest Cretaceous and early Eocene times. Combined with previously documented isolated extensional detachments found in the Kırşehir Block, our results suggest that a major province governed by extensional exhumation was active throughout Central Anatolia between ∼80 and ∼48 Ma. Although similar in dimension to the Aegean extensional province to the east, the Central Anatolian extensional province is considerably older and was controlled by a different extension direction. From this, we infer that the African slab(s) that subducted below Anatolia must have rolled back relative to the Aegean slab since at least the latest Cretaceous, suggesting that these regions were underlain by a segmented slab. Whether or not these early segments already corresponded to the modern Aegean, Antalya, and Cyprus slab segments remains open for debate, but slab segmentation must have occurred much earlier than previously thought. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110160
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Department of Earth Sciences, University of Utrecht, Utrecht, Netherlands; Steinmann-Institute, University of Bonn, Bonn, Germany; Department of Geosciences, Centre for Earth Evolution and Dynamics, University of Oslo, Norway; Institute of Geophysics, ETH Zurich, Zürich, Switzerland

Recommended Citation:
Gürer D.,Plunder A.,Kirst F.,et al. A long-lived Late Cretaceous–early Eocene extensional province in Anatolia? Structural evidence from the Ivriz Detachment, southern central Turkey[J]. Earth and Planetary Science Letters,2018-01-01,481
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