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Reconstruction of the Amazon basin effective moisture availability over the past 14,000 years.

Titre :	Reconstruction of the Amazon basin effective moisture availability over the past 14,000 years. Ajouter au panier
Est un extrait ou un tiré à part de :	Science
Auteur(s) :	Mark A. Maslin, Auteur (et co-auteur) Stephen J. Burns, Auteur (et co-auteur)
Type de document :	Tiré à part
Résumé :	Quantifying the moisture history of the Amazon Basin is essential for understanding the cause of rain forest diversity and its potential as a methane source. We reconstructed the Amazon River outflow history for the past 14,000 years to provide a moisture budget for the river drainage basin. The oxygen isotopic composition of planktonic foraminifera recovered from a marine sediment core in a region of Amazon River discharge shows that the Amazon Basin was extremely dry during the Younger Dryas, with the discharge reduced by at least 40% as compared with that of today. After the Younger Dryas, a meltwaterdriven discharge event was followed by a steady increase in the Amazon Basin effective moisture throughout the Holocene.
Editeur(s) :	American Association for the Advancement of Science
Date de publication :	2000
Format :	pp. 2285-2287 / graph., carte., réf.
Note(s) :	Vol.290 - n°5500
Langue(s) :	Anglais
Lien vers la notice :	https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=165158