气候变化领域集成服务门户(CCPortal): Discovery of Middle-Late Devonian and Early Permian magmatic events in East Asia and their implication for the Indosinian orogeny in South China: Insights from the sedimentary record

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DOI	10.1130/B35032.1
	Discovery of Middle-Late Devonian and Early Permian magmatic events in East Asia and their implication for the Indosinian orogeny in South China: Insights from the sedimentary record
	Zhang X.; Wang Y.; Harris R.; Yan Y.; Zheng Y.
发表日期	2019
ISSN	167606
起始页码	1519
结束页码	1536
卷号	131 期号:2021-09-10
英文摘要	Whether the driver of the Indosinian orogeny in the South China block was related to the evolution of the Paleotethyan Ocean or the Paleo-Pacific Ocean has been a point of much debate. We applied detrital zircon U-Pb dating to Permian-Triassic sedimentary rocks from South China to trace sediment provenance and to further test these models. Our results, combined with other published data from the Pingxiang, Youjiang, Yong'an, and Yongding Basins, show that 400-350 Ma and 300-260 Ma zircon grains are ubiquitous throughout the entirety of southern South China. This indicates regional magmatic events as potential sources. The discovery of Middle-Late Devonian and Early Permian igneous rocks, tuffs, and volcaniclastic rocks in Southeast Asia and Hainan Island implies the presence of two magmatic events (400-350 Ma and 300-260 Ma) within or beyond the southern margin of South China. This information, together with the mostly negative εHf(t) values of 400-350 Ma and 300-260 Ma zircon grains, arc-like geochemical signatures of the possible source rocks, and the regional geology of East Asia, suggests that they originated from sources related to Paleotethyan and even Proto-Tethyan subduction. Thus, Permian-Triassic sedimentation and the Indosinian orogeny in South China were largely controlled by the evolution of the Tethyan Ocean. © 2019 Geological Society of America.
语种	英语
来源期刊	Bulletin of the Geological Society of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/184901
作者单位	Key Laboratory of Ocean and Marginal Sea Geology, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; Guangdong Provincial Key Laboratory of Geodynamics and Geohazards, School of Earth Sciences and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Department of Geological Sciences, Brigham Young University, S389 Eyring Science Center, Provo, UT 84602, United States
推荐引用方式 GB/T 7714	Zhang X.,Wang Y.,Harris R.,et al. Discovery of Middle-Late Devonian and Early Permian magmatic events in East Asia and their implication for the Indosinian orogeny in South China: Insights from the sedimentary record[J],2019,131(2021-09-10).
APA	Zhang X.,Wang Y.,Harris R.,Yan Y.,&Zheng Y..(2019).Discovery of Middle-Late Devonian and Early Permian magmatic events in East Asia and their implication for the Indosinian orogeny in South China: Insights from the sedimentary record.Bulletin of the Geological Society of America,131(2021-09-10).
MLA	Zhang X.,et al."Discovery of Middle-Late Devonian and Early Permian magmatic events in East Asia and their implication for the Indosinian orogeny in South China: Insights from the sedimentary record".Bulletin of the Geological Society of America 131.2021-09-10(2019).