The timing of Barleik Formation and its implication for the Devonian tectonic evolution of Western Junggar, NW China

The timing of Barleik Formation in Xinjiang, NW China, has not been constrained by accurate geochronology yet, while this work is of great significance to help reconstruct the geological tectonic evolution of Western Junggar. Based on the LA-ICP-MS U–Pb geochronology study, the weighted average age...

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Autores principales:	Hui Yuanxiu, Wang Ran, Li Lu, Lin Jingyu, Xiao Zhouxuan, Xin Yonghui, Luo Xin
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	barleik formation tuff magmatic zircons u–pb isotope chronology tectonic settings Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/ab91ecb4112c478f9ab3957e36cd9aa3
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id	oai:doaj.org-article:ab91ecb4112c478f9ab3957e36cd9aa3
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spelling	oai:doaj.org-article:ab91ecb4112c478f9ab3957e36cd9aa32021-12-05T14:10:48ZThe timing of Barleik Formation and its implication for the Devonian tectonic evolution of Western Junggar, NW China2391-544710.1515/geo-2020-0229https://doaj.org/article/ab91ecb4112c478f9ab3957e36cd9aa32021-02-01T00:00:00Zhttps://doi.org/10.1515/geo-2020-0229https://doaj.org/toc/2391-5447The timing of Barleik Formation in Xinjiang, NW China, has not been constrained by accurate geochronology yet, while this work is of great significance to help reconstruct the geological tectonic evolution of Western Junggar. Based on the LA-ICP-MS U–Pb geochronology study, the weighted average age of magmatic zircons collected from the tuff in Barleik Formation, which reflects the formation age of the tuff, is 372 ± 2 Ma (N = 57, mean square of weighted deviates (MSWD) = 1.15). The first report in this study of the zircon U–Pb dating result indicates that Barleik Formation along the West Junggar tectonic belt occurred in the Late Devonian rather than in the middle Devonian period as previously claimed. Meanwhile, chronology data and the geochemical features comparing with the Island Arc-related rocks in the adjacent area, as well as stratigraphic structural relationship, suggest that volcanic activities may exist in the Late Devonian, and the relevant volcanic ash deposited in the Barleik forearc basin may be derived from the adjacent island arc (current geographic coordinate). In addition, the fossil assemblage dominated by bathyal-abyssal invertebrate fossils and bathyal-abyssal facies indicates that the Barleik Formation is a bathyal-abyssal sedimentary environment.Hui YuanxiuWang RanLi LuLin JingyuXiao ZhouxuanXin YonghuiLuo XinDe Gruyterarticlebarleik formationtuffmagmatic zirconsu–pb isotope chronologytectonic settingsGeologyQE1-996.5ENOpen Geosciences, Vol 13, Iss 1, Pp 188-196 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	barleik formation tuff magmatic zircons u–pb isotope chronology tectonic settings Geology QE1-996.5
spellingShingle	barleik formation tuff magmatic zircons u–pb isotope chronology tectonic settings Geology QE1-996.5 Hui Yuanxiu Wang Ran Li Lu Lin Jingyu Xiao Zhouxuan Xin Yonghui Luo Xin The timing of Barleik Formation and its implication for the Devonian tectonic evolution of Western Junggar, NW China
description	The timing of Barleik Formation in Xinjiang, NW China, has not been constrained by accurate geochronology yet, while this work is of great significance to help reconstruct the geological tectonic evolution of Western Junggar. Based on the LA-ICP-MS U–Pb geochronology study, the weighted average age of magmatic zircons collected from the tuff in Barleik Formation, which reflects the formation age of the tuff, is 372 ± 2 Ma (N = 57, mean square of weighted deviates (MSWD) = 1.15). The first report in this study of the zircon U–Pb dating result indicates that Barleik Formation along the West Junggar tectonic belt occurred in the Late Devonian rather than in the middle Devonian period as previously claimed. Meanwhile, chronology data and the geochemical features comparing with the Island Arc-related rocks in the adjacent area, as well as stratigraphic structural relationship, suggest that volcanic activities may exist in the Late Devonian, and the relevant volcanic ash deposited in the Barleik forearc basin may be derived from the adjacent island arc (current geographic coordinate). In addition, the fossil assemblage dominated by bathyal-abyssal invertebrate fossils and bathyal-abyssal facies indicates that the Barleik Formation is a bathyal-abyssal sedimentary environment.
format	article
author	Hui Yuanxiu Wang Ran Li Lu Lin Jingyu Xiao Zhouxuan Xin Yonghui Luo Xin
author_facet	Hui Yuanxiu Wang Ran Li Lu Lin Jingyu Xiao Zhouxuan Xin Yonghui Luo Xin
author_sort	Hui Yuanxiu
title	The timing of Barleik Formation and its implication for the Devonian tectonic evolution of Western Junggar, NW China
title_short	The timing of Barleik Formation and its implication for the Devonian tectonic evolution of Western Junggar, NW China
title_full	The timing of Barleik Formation and its implication for the Devonian tectonic evolution of Western Junggar, NW China
title_fullStr	The timing of Barleik Formation and its implication for the Devonian tectonic evolution of Western Junggar, NW China
title_full_unstemmed	The timing of Barleik Formation and its implication for the Devonian tectonic evolution of Western Junggar, NW China
title_sort	timing of barleik formation and its implication for the devonian tectonic evolution of western junggar, nw china
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/ab91ecb4112c478f9ab3957e36cd9aa3
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The timing of Barleik Formation and its implication for the Devonian tectonic evolution of Western Junggar, NW China

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