Eocene-early Oligocene climate and vegetation change in southern China: Evidence from the Maoming Basin

doi:10.1016/j.iffoodmicro.2016.12.017

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	Eocene-early Oligocene climate and vegetation change in southern China: Evidence from the Maoming Basin
	Herman, Alexei B.; Spicer, Robert A.; Aleksandrova, Galina N.; Yang, Jian ; Kodrul, Tatiana M.; Maslova, Natalia P.; Spicer, Teresa E. V.; Chen, Gang ; Jin, Jian-Hua
刊名	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
	2017
卷号	479 页码:126-137
关键词	Monsoon climate Plant fossils CLAMP Altimetry
ISSN号	0031-0182
DOI	10.1016/j.iffoodmicro.2016.12.017
文献子类	Article
英文摘要	Although the Eocene-Oligocene climate transition marks a critical point in the development of the 'icehouse' global climate of the present little is known about this important change in the terrestrial realm at low latitudes. Our palynological study of the Shangcun Formation shows it to be early Oligocene in age: palyno-assemblages in the lower part of the formation indicate a cool interval dominated by conifer pollen in the earliest Oligocene followed by a warmer regime in the second half of the early Oligocene. To quantify middle Eocene to late early Oligocene climate conditions at low (similar to 20 degrees N) palaeolatitudes in southern Asia several thousand leaf fossil specimens from the Maoming Basin, southern China, were subjected to a multivariate (CLAMP) analysis of leaf form. For terrestrial palaeoclimate comparisons to be valid the palaeoaltitude at which the proxy data are obtained must be known. We find that leaves preserved in the Youganwo (middle Eocene), Huangniuling (late Eocene) and Shangcun (early Oligocene) formations were likely to have been deposited well above sea level at different palaeoelevations. In the Youganwo Formation fine-grained sediments were deposited at an altitude of similar to 1.5 km, after which the basin dropped to similar to 0.5 km by the time the upper Huangniuling sediments were deposited. The basin floor then rose again by 0.5 km reaching an altitude of approximately 1 km in which the Shangcun Formation fine-grained sediments were accumulated. Within the context of these elevation changes the prevailing climates experienced by the Youganwo, Lower Huangniuling, Upper Huangniuling and Shangcun fossil floras were humid subtropical with hot summers and warm winters, but witnessed a progressive increase in rainfall seasonality. By the early Oligocene rainfall seasonality was similar to that of the modern monsoonal climate of Guangdong Province, southern China. All floras show leaf physiognomic spectra most similar to those growing under the influence of the modern Indonesia-Australia Monsoon, but with no evidence of any adaptation to today's South or East Asia Monsoon regimes. The Upper Huangniuling Flora, rich in dipterocarp plant megafossils, grew in the warmest conditions with the highest cold month mean temperature and at the lowest altitude. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Food Science & Technology ; Microbiology
电子版国际标准刊号	1872-616X
出版地	AMSTERDAM
WOS关键词	SUMMER MONSOON ; PALYNOSTRATIGRAPHY ; PALEOCLIMATE ; RAJASTHAN ; MINE
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000394403700001
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41210001, 41572011, 31370254] ; Recruitment Program of High-end Foreign Experts of the State Administration of Foreign Experts Affairs, P. R. China ; Key Project of Sun Yat-sen University for inviting foreign teachers ; Geological Institute, Russian Acad. Sci. [0135-2016-0001] ; Borissiak Paleontological Institute, Russian Acad. Sci. [0113-2014-0002] ; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [15-55-53019]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/22005]
专题	系统与进化植物学国家重点实验室
作者单位	1.[Herman, Alexei B. 2.Spicer, Robert A. 3.Kodrul, Tatiana M. 4.Chen, Gang 5.Sun Yat Sen Univ, State Key Lab Biocontrol, Guangzhou 510275, Guangdong, Peoples R China 6.Sun Yat Sen Univ, Guangdong Prov Key Lab Plant Resources, Sch Life Sci, Guangzhou 510275, Guangdong, Peoples R China 7.Aleksandrova, Galina N. 8.Kodrul, Tatiana M.] Russian Acad Sci, Geol Inst, Moscow 119017, Russia 9.[Spicer, Robert A.] Open Univ, Environm, Earth, Ecosyst, Milton Keynes MK7 6AA, Bucks, England 10.[Yang, Jian
推荐引用方式 GB/T 7714	Herman, Alexei B.,Spicer, Robert A.,Aleksandrova, Galina N.,et al. Eocene-early Oligocene climate and vegetation change in southern China: Evidence from the Maoming Basin[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2017,479:126-137.
APA	Herman, Alexei B..,Spicer, Robert A..,Aleksandrova, Galina N..,Yang, Jian.,Kodrul, Tatiana M..,...&Jin, Jian-Hua.(2017).Eocene-early Oligocene climate and vegetation change in southern China: Evidence from the Maoming Basin.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,479,126-137.
MLA	Herman, Alexei B.,et al."Eocene-early Oligocene climate and vegetation change in southern China: Evidence from the Maoming Basin".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 479(2017):126-137.