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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/3QAT57E
Repositóriosid.inpe.br/mtc-m21b/2018/01.04.14.53   (acesso restrito)
Última Atualização2018:01.04.14.53.52 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21b/2018/01.04.14.53.52
Última Atualização dos Metadados2021:01.02.22.17.20 (UTC) administrator
DOI10.1016/j.quascirev.2017.12.005
ISSN0277-3791
Chave de CitaçãoCrivellariCKHPZZSMHAOM:2018:InAmFr
TítuloIncreased Amazon freshwater discharge during late Heinrich Stadial 1
Ano2018
MêsFeb.
Data de Acesso03 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho2525 KiB
2. Contextualização
Autor 1 Crivellari, Stefano
 2 Chiessi, Cristiano Mazur
 3 Kuhnert, Henning
 4 Häggi, Christoph
 5 Portilho-Ramos, Rodrigo da Costa
 6 Zeng, Jing-Ying
 7 Zhang, Yancheng
 8 Schefuß, Enno
 9 Mollenhauer, Gesine
10 Hefter, Jens
11 Alexandre, Felipe
12 Oliveira, Gilvan Sampaio de
13 Mulitza, Stefan
Identificador de Curriculo 1
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12 8JMKD3MGP5W/3C9JHBE
Grupo 1
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12 DIDOP-CGCPT-INPE-MCTIC-GOV-BR
Afiliação 1 Universidade Federal de São Paulo (UNIFESP)
 2 Universidade de São Paulo (USP)
 3 University of Bremen
 4 University of Bremen
 5 Universidade Federal de São Paulo (UNIFESP)
 6 University of Bremen
 7 University of Bremen
 8 University of Bremen
 9 Alfred Wegener Institute for Polar and Marine Research
10 Alfred Wegener Institute for Polar and Marine Research
11 Instituto Nacional de Pesquisas Espaciais (INPE)
12 Instituto Nacional de Pesquisas Espaciais (INPE)
13 University of Bremen
Endereço de e-Mail do Autor 1
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12 gilvan.sampaio@inpe.br
RevistaQuaternary Science Reviews
Volume181
Páginas144-155
Nota SecundáriaA1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_CIÊNCIAS_AGRÁRIAS_I C_CIÊNCIAS_BIOLÓGICAS_I
Histórico (UTC)2018-01-04 14:53:52 :: simone -> administrator ::
2018-01-04 14:53:52 :: administrator -> simone :: 2018
2018-01-04 14:57:58 :: simone -> administrator :: 2018
2021-01-02 22:17:20 :: administrator -> simone :: 2018
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-ChaveHeinrich Stadial 1
Amazon Basin
Continental precipitation
Planktonic foraminifera
Lipid biomarkers
ResumoThe temporal succession of changes in Amazonian hydroclimate during Heinrich Stadial 1 (HS1) (ca. 1814.7 cal ka BP) is currently poorly resolved. Here we present HS1 records based on isotope, inorganic and organic geochemistry from a marine sediment core influenced by the Amazon River discharge. Our records offer a detailed reconstruction of the changes in Amazonian hydroclimate during HS1, integrated over the basin. We reconstructed surface water hydrography using stable oxygen isotopes (δ18O) and Mg/Ca-derived paleotemperatures from the planktonic foraminifera Globigerinoides ruber, as well as salinity changes based on stable hydrogen isotope (δD) of palmitic acid. We also analyzed branched and isoprenoid tetraether concentrations, and compared them to existing bulk sediment ln(Fe/Ca) data and vegetation reconstruction based on stable carbon isotopes from n-alkanes, in order to understand the relationship between continental precipitation, vegetation and sediment production. Our results indicate a two-phased HS1 (HS1a and HS1b). During HS1a (1816.9 cal ka BP), a first sudden increase of sea surface temperatures (SST) in the western equatorial Atlantic correlated with the slowdown of the Atlantic Meridional Overturning Circulation (AMOC) and the associated southern hemisphere warming phase of the bipolar seesaw. This phase was also characterized by an increased delivery of terrestrial material. During HS1b (16.914.8 cal ka BP), a decrease in terrestrial input was, however, associated with a marked decline of seawater δ18O and palmitic acid δD. Both isotopic proxies independently indicate a drop in sea surface salinity (SSS). A number of records under the influence of the North Brazil Current, in contrast, indicate increases in SST and SSS resulting from a weakened AMOC during HS1. Our records thus suggest that the expected increase in SSS due to the AMOC slowdown was overridden by a two-phased positive precipitation anomaly in Amazonian hydroclimate.
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4. Condições de acesso e uso
Idiomaen
Arquivo Alvocrivellari_increased.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
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Visibilidadeshown
Política de Arquivamentodenypublisher denyfinaldraft24
Permissão de Leituradeny from all and allow from 150.163
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/43SQKNE
Lista de Itens Citandosid.inpe.br/mtc-m21/2012/07.13.14.49.24 3
sid.inpe.br/bibdigital/2021/01.02.22.14 2
DivulgaçãoWEBSCI; PORTALCAPES; COMPENDEX.
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
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