气候变化领域集成服务门户(CCPortal): A Closure of the Mongol-Okhotsk Ocean by the Middle Jurassic: Reconciliation of Paleomagnetic and Geological Evidence

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DOI	10.1029/2020GL088235
	A Closure of the Mongol-Okhotsk Ocean by the Middle Jurassic: Reconciliation of Paleomagnetic and Geological Evidence
	Yi Z.; Meert J.G.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	The late Mesozoic closure of the Mongol-Okhotsk Ocean (MOO) is critical for understanding the tectonics of East Asia. There is a considerable mismatch (~40 million years) between the timing of MOO closure based on paleomagnetic data and geological evidence. We review paleomagnetic data from Mongolia, Siberia, and North China and argue that previously published apparent polar wander paths (APWPs) for North China and Siberia are insufficient to constrain the timing of MOO closure. Our new analysis incorporates newly published paleomagnetic data from North China and a refined geochronology for the key Siberian poles. We combine this with an updated global APWP incorporating large-scale Jurassic true polar wander and argue that the MOO was closed by the Middle Jurassic. This temporal shift is compatible with geology-based models. The Middle Jurassic reconstruction of Eurasia suggests that the East Asian blocks had become a quasi-rigid part of Pangea prior to breakup. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Geochronology; Geomagnetism; East Asia; Jurassic; Mesozoic; Middle Jurassic; North China; Paleomagnetic data; Temporal shifts; True Polar Wander; Plant shutdowns; geochronology; Jurassic; paleomagnetism; Pangaea; polar wandering; reconstruction; temporal analysis; China; Khabarovsk [Russian Federation]; Mongolia; Okhotsk; Russian Federation
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170007
作者单位	Planetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, China; Department of Geological Sciences, University of Florida, Gainesville, FL, United States
推荐引用方式 GB/T 7714	Yi Z.,Meert J.G.. A Closure of the Mongol-Okhotsk Ocean by the Middle Jurassic: Reconciliation of Paleomagnetic and Geological Evidence[J],2020,47(15).
APA	Yi Z.,&Meert J.G..(2020).A Closure of the Mongol-Okhotsk Ocean by the Middle Jurassic: Reconciliation of Paleomagnetic and Geological Evidence.Geophysical Research Letters,47(15).
MLA	Yi Z.,et al."A Closure of the Mongol-Okhotsk Ocean by the Middle Jurassic: Reconciliation of Paleomagnetic and Geological Evidence".Geophysical Research Letters 47.15(2020).