globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2014.03.018
论文题名:
Evidence of strong storm events possibly related to the little Ice Age in sediments on the southerncoast of Brazil
作者: Oliveira F.M.; Macario K.D.; Simonassi J.C.; Gomes P.R.S.; Anjos R.M.; Carvalho C.; Linares R.; Alves E.Q.; Castro M.D.; Souza R.C.C.L.; Marques A.N.; Jr.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2014
卷: 415
起始页码: 233
结束页码: 239
语种: 英语
英文关键词: Carbon and nitrogen stable isotopes ; Little Ice Age (LIA) ; Marine sediments ; Marine shells ; Radiocarbon accelerator mass spectrometry ; Southern Brazilian coast
英文摘要: Late Holocene environmental changes on the southeastern Brazilian coast were assessed using a high-resolution paleoproductivity proxy record from a sediment core collected at 14m water depth in the Pântano do Sul Inlet. Mollusk shells from the core were AMS dated, and sediment grain size, concentrations of organic carbon and total nitrogen, and δ13C and δ15N values were determined to investigate changes in paleoceanographic and paleoclimatic conditions over the depositional period. Most of the parameters showed strong fluctuations in the depth interval corresponding to the Little Ice Age, between 1560 and 1700AD, that were marked by first an increase and then a decrease of input of terrigenous sediments to the inlet. Proxies also indicate that sedimentary conditions were more stable, before and after this period. The strong sedimentary changes observed in the Pântano do Sul Inlet may be related to climatic changes reported elsewhere in South America during 1550 and 1800AD and to severe storm events associated with the enhanced cold fronts that occurred in the southern littoral region during this period. © 2014 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69156
Appears in Collections:过去全球变化的重建

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作者单位: Instituto de Física, Universidade Federal Fluminense, Av. Gal. Milton Tavares de Souza, S/N, Niterói, RJ, Brazil; Núcleo de Estudos do Mar, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil; Departamento de Ciências da Natureza, Universidade do Estado do Rio de Janeiro, Rua Santa Alexandrina, 288, Rio de Janeiro, RJ, Brazil; Instituto Superior de Tecnologías y Ciencias Aplicadas, InSTEC, Quinta de los Molinos, Ave. Salvador Allende y Luaces, Plaza de la Revolucion, Ciudad de La Habana, Cuba; Departamento de Biologia Marinha, Instituto de Biologia Universidade Federal Fluminense, Niterói, RJ, Brazil

Recommended Citation:
Oliveira F.M.,Macario K.D.,Simonassi J.C.,et al. Evidence of strong storm events possibly related to the little Ice Age in sediments on the southerncoast of Brazil[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2014-01-01,415
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