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First Paleomagnetic Result From the Early Permian Volcanic Rocks in Northeastern Mongolia: Evolutional Implication for the Paleo-Asian Ocean and the Mongol-Okhotsk Ocean

文献类型：期刊论文

作者Zhao, Pan3,4,5; Appel, Erwin3; Xu, Bei2; Sukhbaatar, Turbold1,6
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
出版日期2020-02-01
卷号125期号:2页码:16
ISSN号2169-9313
DOI10.1029/2019JB017338
英文摘要The Mongolia Block (MOB), which is now sandwiched by the Siberia Craton (SIB) and the North China Craton (NCC), plays an essential role for understanding the late stage evolution of the Paleo-Asian Ocean and the early stage evolution of the Mongol-Okhotsk Ocean. Here, a paleomagnetic study is performed for the first time on the Early Permian volcanic strata in the Bayandun region of northeastern Mongolia and the data are used to uncover the late Paleozoic paleoposition of the MOB and better understand the evolution of both oceans. Zircon U-Pb dating results reveal an emplacement age of 283 3 Ma for the studied volcanic strata. Rock magnetic analyses identify that titanium-poor magnetite is the main magnetic carrier. Characteristic remanent magnetization isolated from seven sites shows consistent reverse polarity, corresponding to the Permo-Carboniferous (Kiaman) Reverse Superchron. Site-mean directions pass fold tests, and an Early Permian paleomagnetic pole is calculated for the MOB at)s lambda/phi = 14.9 degrees N/76.8 degrees E (A(95) = 5.7) with N = 7 sites. Comparison with published Permian paleomagnetic poles from surrounding blocks indicates that (1) the MOB should have welded with the NCC before the Early Permian or was at least very close to it. (2) The welded MOB-NCC was separated from the SIB by the Mongol-Okhotsk Ocean with similar to 30 degrees latitudinal difference during the Early Permian. (3) Significant vertical-axis strike-slip related rotations occurred within and along the margins of the unified MOB-NCC due to the far-field stress effect produced by posterior orogenic events.
WOS关键词NORTHERN INNER-MONGOLIA ; SOUTHERN MARGIN ; SIBERIAN TRAPS ; OROGENIC BELT ; FOLD TEST ; CHINA ; PALEOGEOGRAPHY ; CONSTRAINTS ; RUSSIA ; ZONE
资助项目National Key R&D Program of China[2017YFC0601302] ; National Nature Science Foundation of China[41888101] ; National Nature Science Foundation of China[41672214] ; Alexander von Humboldt Foundation
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000530895200025
出版者AMER GEOPHYSICAL UNION
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/96722]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Xu, Bei
作者单位1.Charles Univ Prague, Inst Petrol & Struct Geol, Prague 2, Czech Republic
2.Hebei GEO Univ, Key Lab Reg Geol & Mineralizat, Shijiazhuang, Hebei, Peoples R China
3.Univ Tubingen, Dept Geosci, Tubingen, Germany
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphet Evolut, Beijing, Peoples R China
6.Mongolian Acad Sci, Inst Paleontol & Geol, Ulaanbaatar, Mongolia
推荐引用方式
GB/T 7714		 Zhao, Pan,Appel, Erwin,Xu, Bei,et al. First Paleomagnetic Result From the Early Permian Volcanic Rocks in Northeastern Mongolia: Evolutional Implication for the Paleo-Asian Ocean and the Mongol-Okhotsk Ocean[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2020,125(2):16.
APA Zhao, Pan,Appel, Erwin,Xu, Bei,&Sukhbaatar, Turbold.(2020).First Paleomagnetic Result From the Early Permian Volcanic Rocks in Northeastern Mongolia: Evolutional Implication for the Paleo-Asian Ocean and the Mongol-Okhotsk Ocean.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,125(2),16.
MLA Zhao, Pan,et al."First Paleomagnetic Result From the Early Permian Volcanic Rocks in Northeastern Mongolia: Evolutional Implication for the Paleo-Asian Ocean and the Mongol-Okhotsk Ocean".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 125.2(2020):16.

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来源：地质与地球物理研究所

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