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Where and when did the Paleo-Asian ocean form?
Wan, Bo1; Li, Shihu1; Xiao, Wenjiao1; Windley, Brian F.2
2018-10-01
发表期刊PRECAMBRIAN RESEARCH
ISSN0301-9268
卷号317页码:241-252
摘要The closure of the long-lived Paleo-Asian Ocean generated the Central Asian Orogenic Belt (CAOB). However, the tectonic history and circumstances of where and when this ocean formed are poorly constrained. We provide a new perspective to help resolve this problem. Three typical magmatic events marked by a 1.75 Ga charnockite, 1.64 Ga gabbro and 1.35 Ga dolerite dykes in SW Siberia are identical with 1.75 Ga anorthosite, 1.63 Ga basalt and 1.35 Ga dolerite sills in the northern North China craton. The youngest coeval dykes/sills (1.35 Ga) and similar to 1.35 to 1.25 Ga sedimentary passive margins in both craton margins mark the initial stage of rifting, and therefore the birth of the Paleo-Asian Ocean. Paleomagnetic data indicate that Siberia and North China drifted together and rotated at similar degrees from similar to 1.6 Ga to similar to 1.35 Ga, suggesting the two cratons were close. After 1.35 Ga, North China rotated in an opposite direction away from Siberia, suggesting further expansion of the Paleo-Asian Ocean, which is consistent with the geological record of the CAOB. The separation between Siberia and North China at the 1.35 Ga was a relatively local event with respect to the Nuna supercontinent, and it did not have significant impact on global tectonics and ocean chemistry. The ocean between Siberia and North China opened and closed from 1.35 Ga to 250 Ma, and thus took similar to 1.1 Ga to complete, indicating that the Wilson Cycle operates at different time scales ranging from 100 Ma in a short collisional orogen to 1.1 Ga in a long-lived accretionary orogen.
DOI10.1016/j.precamres.2018.09.003
资助者National Basic Research Program of China ; National Basic Research Program of China ; National Science Foundation of China ; National Science Foundation of China ; Programs of the Chinese Academy of Sciences of China ; Programs of the Chinese Academy of Sciences of China ; National Basic Research Program of China ; National Basic Research Program of China ; National Science Foundation of China ; National Science Foundation of China ; Programs of the Chinese Academy of Sciences of China ; Programs of the Chinese Academy of Sciences of China ; National Basic Research Program of China ; National Basic Research Program of China ; National Science Foundation of China ; National Science Foundation of China ; Programs of the Chinese Academy of Sciences of China ; Programs of the Chinese Academy of Sciences of China ; National Basic Research Program of China ; National Basic Research Program of China ; National Science Foundation of China ; National Science Foundation of China ; Programs of the Chinese Academy of Sciences of China ; Programs of the Chinese Academy of Sciences of China
关键词[WOS]NORTH CHINA CRATON ; PRE-RODINIA SUPERCONTINENT ; PB BADDELEYITE AGES ; MA MAFIC DYKES ; U-PB ; OROGENIC BELT ; INNER-MONGOLIA ; SIBERIAN CRATON ; PALEOGEOGRAPHIC IMPLICATIONS ; BREAK-UP
语种英语
资助项目National Basic Research Program of China[2014CB44800] ; National Science Foundation of China[41390440] ; Programs of the Chinese Academy of Sciences of China[2013047] ; Programs of the Chinese Academy of Sciences of China[QYZDJ-SSW-SYS012] ; Programs of the Chinese Academy of Sciences of China[GJHZ1776]
资助者National Basic Research Program of China ; National Basic Research Program of China ; National Science Foundation of China ; National Science Foundation of China ; Programs of the Chinese Academy of Sciences of China ; Programs of the Chinese Academy of Sciences of China ; National Basic Research Program of China ; National Basic Research Program of China ; National Science Foundation of China ; National Science Foundation of China ; Programs of the Chinese Academy of Sciences of China ; Programs of the Chinese Academy of Sciences of China ; National Basic Research Program of China ; National Basic Research Program of China ; National Science Foundation of China ; National Science Foundation of China ; Programs of the Chinese Academy of Sciences of China ; Programs of the Chinese Academy of Sciences of China ; National Basic Research Program of China ; National Basic Research Program of China ; National Science Foundation of China ; National Science Foundation of China ; Programs of the Chinese Academy of Sciences of China ; Programs of the Chinese Academy of Sciences of China
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000449125900015
出版者ELSEVIER SCIENCE BV
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/89157
专题岩石圈演化国家重点实验室
通讯作者Wan, Bo
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England
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GB/T 7714
Wan, Bo,Li, Shihu,Xiao, Wenjiao,et al. Where and when did the Paleo-Asian ocean form?[J]. PRECAMBRIAN RESEARCH,2018,317:241-252.
APA Wan, Bo,Li, Shihu,Xiao, Wenjiao,&Windley, Brian F..(2018).Where and when did the Paleo-Asian ocean form?.PRECAMBRIAN RESEARCH,317,241-252.
MLA Wan, Bo,et al."Where and when did the Paleo-Asian ocean form?".PRECAMBRIAN RESEARCH 317(2018):241-252.
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