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	Cenozoic magnetostratigraphy of the Xining Basin, NE Tibetan Plateau, and its constraints on paleontological, sedimentological and tectonomorphological evolution
	Fang, Xiaomin1,2,3; Fang, Yahui1,2,3; Zan, Jinbo1,2; Zhang, Weilin1,2; Song, Chunhui4,5; Appel, Erwin6; Meng, Qingquan4,5; Miao, Yunfa7; Dai, Shuang4,5; Lu, Yin1,2,6
刊名	EARTH-SCIENCE REVIEWS
	2019-03-01
卷号	190页码:460-485
关键词	Cenozoic magnetostratigraphy Xiejia fauna Eolian dust deposition Xining Basin NE Tibet uplift
ISSN号	0012-8252
DOI	10.1016/j.earscirev.2019.01.021
通讯作者	Fang, Xiaomin(fangxm@itpcas.ac.cn)
英文摘要	The Xining Basin is well known for its thick and continuous sequence of fine-grained Cenozoic sediments. In addition, it contains important Xiejia fauna which define the Xiejian Stage of the early Miocene in the standard Chinese land mammal zonation, and it also provides detailed histories of eolian dust deposition which document the aridification of Asia, monsoon evolution and the initiation of the Yellow River in relation to the uplift of the Tibetan Plateau. However, the results of magnetostratigraphic dating of the fossil-bearing sequence has yielded conflicting ages for the fauna and stratigraphy, hindering the use of the sequence for addressing major paleoenvironmental and paleoclimatic issues. Here, we review the paleontological, lithological and magnetostratigraphic record of the Xining Basin and provide a new, long and continuous high-resolution magnetostratigraphy from the basin center. The results show that the observed magnetic polarity zones from the various sections at different sites in the basin exhibit similar magnetic polarity patterns which can be readily correlated, in terms of both magnetic polarity zonation and lithofacies; in addition, they show that the sedimentary sequence of the basin was sub-continuously deposited from similar to 54 Ma to 4.8 Ma. The magnetostratigraphic correlations confirm previous constraint of the Xiejia fauna in the late Oligocene at similar to 25 Ma, challenging the current Chinese mammal land zonation for the early Miocene, and we suggest that it provides a superior record of eolian dust deposition and river incision in the late Pliocene than previous studies. There is a close match of the climatic proxy records of the Xiejia section, dated by magnetostratigraphy, with the global climatic record which corroborates the paleomagnetic correlations. The evolution of the sedimentary environment provided by the lithofacies demonstrates a complete cycle of basin formation and termination, which records the eastern Qilian Shan experienced three main phases of uplifts: slow episodic uplifts at similar to 54 Ma and 22.5 Ma and a late rapid episodic uplifts at 8-7 Ma and since 4.8-3.6 Ma. This tectonic uplift in the NE Tibetan Plateau was mostly nearly synchronous responses to the initial and continuing collision of India and Asia since similar to 50 +/- 5 Ma.
收录类别	SCI
WOS关键词	RESOLUTION MAGNETO STRATIGRAPHY ; MIOCENE MAMMALIAN FOSSILS ; CLIMATE-CHANGE ; YELLOW-RIVER ; SEDIMENTARY ARCHIVE ; NORTHEASTERN TIBET ; QINGHAI PROVINCE ; TECTONIC UPLIFT ; ASIAN MONSOONS ; HEXI CORRIDOR
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000462803000020
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2555526
专题	寒区旱区环境与工程研究所
通讯作者	Fang, Xiaomin
作者单位	1.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Key Lab Continental Collis & Plateau Uplift, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, 19A Yuquan Rd, Beijing 100049, Peoples R China 4.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Gansu, Peoples R China 5.Lanzhou Univ, Key Lab Western Chinas Environm Syst MOE, Lanzhou 730000, Gansu, Peoples R China 6.Univ Tubingen, Dept Geosci, Holderlinstr 12, D-72074 Tubingen, Germany 7.Chinese Acad Sci, Key Lab Desert & Desertificat, Cold & Arid Reg Environm & Engn Inst, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Fang, Xiaomin,Fang, Yahui,Zan, Jinbo,et al. Cenozoic magnetostratigraphy of the Xining Basin, NE Tibetan Plateau, and its constraints on paleontological, sedimentological and tectonomorphological evolution[J]. EARTH-SCIENCE REVIEWS,2019,190:460-485.
APA	Fang, Xiaomin.,Fang, Yahui.,Zan, Jinbo.,Zhang, Weilin.,Song, Chunhui.,...&Zhang, Tao.(2019).Cenozoic magnetostratigraphy of the Xining Basin, NE Tibetan Plateau, and its constraints on paleontological, sedimentological and tectonomorphological evolution.EARTH-SCIENCE REVIEWS,190,460-485.
MLA	Fang, Xiaomin,et al."Cenozoic magnetostratigraphy of the Xining Basin, NE Tibetan Plateau, and its constraints on paleontological, sedimentological and tectonomorphological evolution".EARTH-SCIENCE REVIEWS 190(2019):460-485.

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