Mid-Miocene climatic optimum: Clay mineral evidence from the red clay succession, Longzhong Basin, Northern China

doi:10.1016/j.palaeo.2017.10.001

IEECAS OpenIR > 古环境研究室

	Mid-Miocene climatic optimum: Clay mineral evidence from the red clay succession, Longzhong Basin, Northern China
	Song, Yougui1,5 ; Wang, Qiansuo 2,3; An, Zhisheng 1; Qiang, Xiaoke1 ; Dong, Jibao 1; Chang, Hong1 ; Zhang, Maosheng 4; Guo, Xiaohua 5
通讯作者	Song, Yougui(syg@ieecas.cn) ; Wang, Qiansuo(wangqiansuo@lyu.edu.cn)
	2018-12-26
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	512 页码:46-55
摘要	The Mid-Miocene Climatic Optimum (MMCO) is one of Earth's most recent prolonged warming events, recorded in both the deep ocean and mid-to high-latitude continents. Thick Cenozoic deposits in the Longzhong Basin, Northwest China, provide great potential for characterizing the MMCO, but have not been well documented. In this study, we carry out clay mineralogical and geochemical analyses of the Miocene red clay succession from the eastern Longzhong Basin, employing X-ray diffraction and geochemistry, and discuss the climatic characteristics of the MMCO. The results reveal that the MMCO occurred at 16-14 Ma and is associated with relatively high kaolinite and smectite contents, high illite crystallinity values and kaolinite/(illite + chlorite) ratio, and lower chlorite and illite contents. These clay mineral assemblages confirm a warm and moist climate during the MMCO. Furthermore, the SiO2/Al2O3 ratio declined with increasing Al2O3, indicative of greater precipitation and intensified weathering during this period. When compared with local and global records, we find that our clay mineral records reflect regional climatic change superimposed upon global climatic trends during the MMCO. It is suggested that a high concentration of CO2, and associated global warming, may have been responsible for the MMCO, rather than the uplift of the Tibetan Plateau.
关键词	X-ray diffraction Geochemistry Miocene climate Global warming event Tibetan Plateau
DOI	10.1016/j.palaeo.2017.10.001
关键词[WOS]	APATITE FISSION-TRACK ; TIBETAN PLATEAU UPLIFT ; EAST-ASIAN MONSOON ; LIUPAN-SHAN ; LOESS PLATEAU ; XINING BASIN ; PALEOCLIMATIC INTERPRETATION ; SEDIMENTARY ARCHIVE ; QILIAN SHAN ; 20 MA
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41290253] ; National Natural Science Foundation of China[41572162] ; Shandong Provincial Natural Science Foundation[ZR2017BD017] ; Xi'an Centre of Geological Survey, China Geological Survey[CGS Diaosheng [2017]0438] ; International Partnership Program of Chinese Academy of Sciences[132B61KYS20160002]
WOS研究方向	Physical Geography ; Geology ; Paleontology
项目资助者	National Natural Science Foundation of China ; Shandong Provincial Natural Science Foundation ; Xi'an Centre of Geological Survey, China Geological Survey ; International Partnership Program of Chinese Academy of Sciences
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000454973500005
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：41[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14447
专题	古环境研究室
通讯作者	Song, Yougui; Wang, Qiansuo
作者单位	1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China 2.Linyi Univ, Coll Resources & Environm, Shandong Prov Key Lab Water & Soil Conservat & En, Linyi 276000, Peoples R China 3.Nanjing Normal Univ, Minist Educ, Key Lab Virtual Geog Environm, Nanjing 210023, Jiangsu, Peoples R China 4.Geol Survey China, Xian Ctr Geol Survey, Key Lab Geohazard Loess Area, Xian 710054, Shaanxi, Peoples R China 5.Baylor Univ, Dept Geosci, Waco, TX 76798 USA
推荐引用方式 GB/T 7714	Song, Yougui,Wang, Qiansuo,An, Zhisheng,et al. Mid-Miocene climatic optimum: Clay mineral evidence from the red clay succession, Longzhong Basin, Northern China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2018,512:46-55.
APA	Song, Yougui.,Wang, Qiansuo.,An, Zhisheng.,Qiang, Xiaoke.,Dong, Jibao.,...&Guo, Xiaohua.(2018).Mid-Miocene climatic optimum: Clay mineral evidence from the red clay succession, Longzhong Basin, Northern China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,512,46-55.
MLA	Song, Yougui,et al."Mid-Miocene climatic optimum: Clay mineral evidence from the red clay succession, Longzhong Basin, Northern China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 512(2018):46-55.