Organic and inorganic geochemical data of sediment cores XC-03 and XC-01-2, Xingu River, Amazon Basin

Late Holocene hydroclimate variations have been extensively recognized in Amazonia, but the effects of such changes on riverine discharge within the Amazon lowlands are still poorly understood. We investigated a sediment core covering circa 4,000 to 300 cal yr BP collected in the lower valley of the Xingu River (Xingu Ria) in an area under the influence of the Amazon River. Our results indicate a decrease in precipitation in the Amazon lowlands throughout the studied period and reduced input of coarser and potassium‐rich Amazon River sediments to the confluence from about 2,600 to 1,400 cal yr BP. We suggest that lower temperatures in the extratropical Southern Hemisphere weakened the South American Summer Monsoon and led to a decrease in the water discharge of the Amazon River during this period.

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Bertassoli Junior, Dailson José, Sawakuchi, André Oliveira, Chiessi, Cristiano Mazur, Schefuß, Enno, Hartmann, Gelvam André, Häggi, Christoph, Zabel, Matthias, McGlue, Michael M, Santos, Rudney A, Pupim, Fabiano Nascimento (2019). Dataset: Organic and inorganic geochemical data of sediment cores XC-03 and XC-01-2, Xingu River, Amazon Basin. https://doi.org/10.1594/PANGAEA.906264

DOI retrieved: 2019

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-4.0
Source https://doi.org/10.1594/PANGAEA.906264
Author Bertassoli Junior, Dailson José
Given Name Dailson José
Family Name Bertassoli Junior
More Authors
Sawakuchi, André Oliveira
Chiessi, Cristiano Mazur
Schefuß, Enno
Hartmann, Gelvam André
Häggi, Christoph
Zabel, Matthias
McGlue, Michael M
Santos, Rudney A
Pupim, Fabiano Nascimento
Source Creation 2019
Publication Year 2019
Resource Type application/zip - filename: Bertassoli_Jr-etal_2019
Subject Areas
Name: Lithosphere

Related Identifiers
Title: Spatiotemporal Variations of Riverine Discharge Within the Amazon Basin During the Late Holocene Coincide With Extratropical Temperature Anomalies
Identifier: https://doi.org/10.1029/2019GL082936
Type: DOI
Relation: IsSupplementTo
Year: 2019
Source: Geophysical Research Letters
Authors: Bertassoli Junior Dailson José , Sawakuchi André Oliveira , Chiessi Cristiano Mazur , Schefuß Enno , Hartmann Gelvam André , Häggi Christoph , da Cruz Junior Francisco William , Zabel Matthias , McGlue Michael M , Santos Rudney A , Pupim Fabiano Nascimento .