Mid-Holocene multiproxy compilation for eastern South America

The mid-Holocene (6000 calibrated years before present) is a key period in palaeoclimatology because incoming summer insolation was lower than during the late Holocene in the Southern Hemisphere, whereas the opposite happened in the Northern Hemisphere. However, the effects of the decreased austral summer insolation over South American climate have been poorly discussed by palaeodata syntheses. In addition, only a few of the regional studies have characterised the mid-Holocene climate in South America through a multiproxy approach. Here, we present a multiproxy compilation of mid-Holocene palaeoclimate data for eastern South America. We compiled 120 palaeoclimatological datasets, which were published in 84 different papers. The palaeodata analysed here suggest a water deficit scenario in the majority of eastern South America during the mid-Holocene if compared to the late Holocene, with the exception of northeastern Brazil. Low mid-Holocene austral summer insolation caused a reduced land–sea temperature contrast and hence a weakened South American monsoon system circulation. This scenario is represented by a decrease in precipitation over the South Atlantic Convergence Zone area, saltier conditions along the South American continental margin, and lower lake levels.

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Cite this as

Prado, Luciana Figueiredo, Wainer, I, Chiessi, Cristiano Mazur, Ledru, Marie-Pierre, Turcq, Bruno Jean (2013). Dataset: Mid-Holocene multiproxy compilation for eastern South America. https://doi.org/10.1594/PANGAEA.820035

DOI retrieved: 2013

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.820035
Author Prado, Luciana Figueiredo
Given Name Luciana Figueiredo
Family Name Prado
More Authors
Wainer, I
Chiessi, Cristiano Mazur
Ledru, Marie-Pierre
Turcq, Bruno Jean
Source Creation 2013
Publication Year 2013
Subject Areas
Name: Atmosphere

Name: Lithosphere

Related Identifiers
Title: A mid-Holocene climate reconstruction for eastern South America
Identifier: https://doi.org/10.5194/cp-9-2117-2013
Type: DOI
Relation: IsSupplementTo
Year: 2013
Source: Climate of the Past
Authors: Prado Luciana Figueiredo , Wainer I , Chiessi Cristiano Mazur , Ledru Marie-Pierre , Turcq Bruno Jean .

Title: Table 1. Description of proxy types
Identifier: hdl:10013/epic.42206.d008
Type: DOI
Relation: References

Title: Data table in txt-format
Identifier: hdl:10013/epic.42206.d009
Type: DOI
Relation: References

Title: Index description
Identifier: hdl:10013/epic.42206.d007
Type: DOI
Relation: References