The response of a dune succession from Lencois Maranhenses, NE Brazil, to climate changes between MIS 3 and MIS 2

doi:10.1016/j.quaint.2019.12.012

	The response of a dune succession from Lencois Maranhenses, NE Brazil, to climate changes between MIS 3 and MIS 2
	Zular, Andre 3; Sawakuchi, Andre O.3; Wang, Hong 4,5,6; Guedes, Carlos C. F.7; Hartmann, Gelvam A.8; Jaqueto, Plinio F.9,10; Chiessi, Cristiano M.1; Cruz, Francisco W.3; Giannini, Paulo C. F.3; Daros, Vinicius K.2
刊名	QUATERNARY INTERNATIONAL
	2020-01-30
卷号	537 页码:97-111
关键词	Lencois maranhenses dunefield Heinrich stadials Last glacial maximum Paleoclimate Coastal eolian deposits Optically stimulated luminescence Multy-proxy approach
ISSN号	1040-6182
DOI	10.1016/j.quaint.2019.12.012
通讯作者	Zular, Andre(andrezular@usp.br)
英文摘要	In tropical Southern Hemisphere South America, late Quaternary marine core and speleothem records provide different proxies and accurate chronologies correlating millennial-scale intervals of increased precipitation with southward shifts of the Intertropical Convergence Zone (ITCZ). However, the climatic effect of these intervals on coastal landforms is poorly understood. Here we investigated the response of abrupt and long-lasting climate events during the Marine Isotope Stages 3 and 2 in a 13.8-m thick sand succession located in a large-scale coastal eolian system, the Lencois Maranhenses Dunefield, NE Brazil, where winds and precipitation are anti-phased and controlled by the single action of the ITCZ. A chronology of the sediment overburden determined by optically stimulated luminescence (OSL) dating of 14 sediment samples obtained at 1-m intervals showed ages between 132.2 +/- 7.0 and 12.9 +/- 0.6 thousand years ago in stratigraphic order. A multi-proxy approach based on grain size, surface grain texture, heavy minerals, thermoluminescence (TL) sensitivity, inorganic geochemistry, reflectance, and magnetic parameters from 268 sediment samples collected at 5-cm intervals indicated periods of dune building and stabilization. Significant stabilization periods are synchronous with Heinrich Stadials 6, 4, 3, 2, and 1, and Greenland Stadial 4, within age model uncertainties. Heavy mineral analysis indicated a steady sand source to the dune succession, while TL sensitivity analysis of quartz grains showed the input allochthonous sediments during stadials. The preservation of peak dune activity during the Last Glacial Maximum is attributed to the enduring precipitation brought by the subsequent Heinrich Stadial 1 event.
资助项目	FAPESP[2009/54232-4] ; FAPESP[2009/53988-8] ; CAPES[564/2015] ; CNPq[304727/2017-2] ; CNPq[306527/2017-0] ; CNPq[302607/2016-1] ; CNPq[422255/2016-5]
WOS关键词	HEINRICH STADIAL 1 ; LAST GLACIAL MAXIMUM ; DOSE-RATE ; LATE QUATERNARY ; GRAIN-SIZE ; DUST ACCUMULATION ; SINGLE GRAINS ; LUMINESCENCE ; QUARTZ ; NORTH
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000517751500010
资助机构	FAPESP ; CAPES ; CNPq
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/12733]
专题	地球环境研究所_古环境研究室
通讯作者	Zular, Andre
作者单位	1.Univ Sao Paulo, Escola Artes Ciencias & Humanidades, Sao Paulo, SP, Brazil 2.Univ Sao Paulo, Inst Matemat & Estat, Sao Paulo, SP, Brazil 3.Univ Sao Paulo, Inst Geociencias, Rua Lago 562, BR-05508080 Sao Paulo, SP, Brazil 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China 5.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing, Peoples R China 6.Univ Illinois, Prairie Res Inst, Illinois State Geol Survey, Champaign, IL USA 7.Univ Fed Parana, Dept Geol, Curitiba, Parana, Brazil 8.Univ Estadual Campinas, Inst Geociencias, Campinas, SP, Brazil 9.Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Sao Paulo, SP, Brazil 10.Univ Minnesota, Inst Rock Magnetism, Dept Earth & Environm Sci, Minneapolis, MN USA
推荐引用方式 GB/T 7714	Zular, Andre,Sawakuchi, Andre O.,Wang, Hong,et al. The response of a dune succession from Lencois Maranhenses, NE Brazil, to climate changes between MIS 3 and MIS 2[J]. QUATERNARY INTERNATIONAL,2020,537:97-111.
APA	Zular, Andre.,Sawakuchi, Andre O..,Wang, Hong.,Guedes, Carlos C. F..,Hartmann, Gelvam A..,...&Trindade, Ricardo I. F..(2020).The response of a dune succession from Lencois Maranhenses, NE Brazil, to climate changes between MIS 3 and MIS 2.QUATERNARY INTERNATIONAL,537,97-111.
MLA	Zular, Andre,et al."The response of a dune succession from Lencois Maranhenses, NE Brazil, to climate changes between MIS 3 and MIS 2".QUATERNARY INTERNATIONAL 537(2020):97-111.