气候变化领域集成服务门户(CCPortal): Multiproxy records in middle–late Miocene sediments from the Wushan Basin: Implications for climate change and tectonic deformation in the northeastern Tibetan Plateau

CCPortal

DOI	10.1130/B35635.1
	Multiproxy records in middle–late Miocene sediments from the Wushan Basin: Implications for climate change and tectonic deformation in the northeastern Tibetan Plateau
	Wang W.; Zhang P.; Wang Z.; Liu K.; Xu H.; Liu C.; Zhang H.; Zheng W.; Zheng D.
发表日期	2020
ISSN	167606
起始页码	149
结束页码	158
卷号	133 期号:2021-01-02
英文摘要	To help understand the relationship between global cooling and Tibetan uplift in the middle to late Miocene, multiple proxy data including carbonate stable isotope records, magnetic susceptibility, and sediment color references were obtained from a mag-netostratigraphic section (14.5-6.0 Ma) of the Wushan Basin along the northeastern margin of the Tibetan Plateau. New proxies identify two phase changes that may have been controlled by global cooling and tectonic deformation at this time. During 14.5-13.2 Ma, positive shifts of ~2.0‰ in 818O and 813C, an increase in lightness (L), and a decrease in redness (a) suggest gradually increasing aridity. Relatively high 818O and 813C values and low a/L and magnetic susceptibility values continue until ca. 10 Ma, when 818O and 813C signifcantly decrease and redness as well as magnetic susceptibility signifcantly increase. The negative shifts in 818O and 813C and increases in redness and magnetic susceptibility at 10 Ma are consistent with coeval basin environment and provenance changes. Combining these data with basin analysis, we suggest that global cooling was the dominant factor and Tibetan uplift was the subordinate factor for the middle Miocene aridifcation of the Wushan Basin. In contrast, the contribution of Tibetan uplift was dominant and global climate change was subordinate in the late Miocene basin paleo-geographic reorganization. © 2020 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/184853
作者单位	School of Earth Science and Geological Engineerin, Sun Yat-Sen University, Guangzhou, 510275, China; Southern Ocean Science and Engineering, Guangdong Laboratory (Zhuhai), Zhuhai, 519000, China; Institute of Earthquake Engineering, Shandong Earthquake Administration, Jinan, 250014, China; State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing, 100029, China; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
推荐引用方式 GB/T 7714	Wang W.,Zhang P.,Wang Z.,等. Multiproxy records in middle–late Miocene sediments from the Wushan Basin: Implications for climate change and tectonic deformation in the northeastern Tibetan Plateau[J],2020,133(2021-01-02).
APA	Wang W..,Zhang P..,Wang Z..,Liu K..,Xu H..,...&Zheng D..(2020).Multiproxy records in middle–late Miocene sediments from the Wushan Basin: Implications for climate change and tectonic deformation in the northeastern Tibetan Plateau.Bulletin of the Geological Society of America,133(2021-01-02).
MLA	Wang W.,et al."Multiproxy records in middle–late Miocene sediments from the Wushan Basin: Implications for climate change and tectonic deformation in the northeastern Tibetan Plateau".Bulletin of the Geological Society of America 133.2021-01-02(2020).