| DOI: | 10.1016/j.gloplacha.2020.103129
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| 论文题名: | Late Devonian paleogeography in the framework of global plate tectonics |
| 作者: | Golonka J.
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| 刊名: | Global and Planetary Change
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| ISSN: | 9218181
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| 出版年: | 2020
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| 卷: | 186 | | 语种: | 英语
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| 英文关键词: | Gondwana
; Laurussia
; Paleoenvironment
; Paleogeography
; Paleolithofacies
; Siberia
; Tectonics
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| Scopus关键词: | Climate change
; Sea level
; Structural geology
; Tectonics
; Volcanoes
; Gondwana
; Laurussia
; Paleo-environment
; Paleogeography
; Paleolithofacies
; SIBERIA
; Transform faults
; biota
; carbonate platform
; Carboniferous
; Devonian
; extinction
; flysch
; Gondwana
; Hercynian orogeny
; lithofacies
; paleoenvironment
; paleogeography
; plate tectonics
; volcanism
; Balkan
; China
; Kazakhstan
; North America
; Siberia
; Turkmenistan
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| 英文摘要: | This paper presents Late Devonian (Frasnian–Famennian) global and regional paleogeographic maps displaying present day coastlines, tectonic elements' boundaries, subductions, rifts, spreading centers, transform faults, paleogeographic configuration and volcanism 370 million years ago. The regional maps illustrate the paleoenvironment and paleolithofacies distribution. The Late Devonian was a time of the onset and development of a major collisional event, the Variscan orogeny. The trench-pulling (or slab-pull) effect of the north dipping subduction, which developed along the Laurussia margin, caused the creation of the back-arc Rheno-Hercynian basin, as well as the transfer of tectonic elements. These tectonic elements included Saxothuringian, Southern Proto-Carpathian and Balkan terranes. The Antler and Ellesmerian orogenies constituted major collisional events in North America. The spreading of the Paleotethys Ocean constituted the main extensional event. This spreading is associated with the movement of tectonic elements towards Laurussia, Siberia and Northern Kazakhstan. In addition, a branch of the Paleotethys Ocean was opened between South China and Gondwana, during the Late Devonian times. The spreading was displayed along the proto-Andean margin of western Gondwana and is thought to have opened the newly proposed Chilean Ocean. The development of major rift systems took place throughout Laurussia and Siberia. Late Devonian rifting was associated with volcanic activity, especially prominent in the Viluy rift in Siberia. The deposition, during the Late Devonian time, is characterized by the existence of large carbonate platforms with reefs on large continents and synorogenic flysch in collisional areas. The sea-level dropped towards the Devonian- Carboniferous boundary. The climate was undergoing change from greenhouse to icehouse. The following plate tectonic events could have influenced the extinction of biotas at the Frasnian-Famennian boundary: 1) The very extensive basaltic volcanism in Laurussia and Siberian and along the arcs. 2) The closure of the Rheic Ocean and the development of the Variscan orogeny. 3) Intensive spreading in the Paleotethys and the development of numerous subductions and volcanic arcs. These events resembled a transition from a rift to a drift phase, during the Permian–Mesozoic break-up of Pangaea. This break-up was associated with other biota extinctions. © 2020 |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/158877
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| Appears in Collections: | 气候变化与战略
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作者单位: | Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, Mickiewicza Ave. 30, Cracow, Poland
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| Recommended Citation: | |
Golonka J.. Late Devonian paleogeography in the framework of global plate tectonics[J]. Global and Planetary Change,2020-01-01,186
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