A high-resolution history of the South American Monsoon from Last Glacial Maximum to the Holocene

The exact extent, by which the hydrologic cycle in the Neotropics was affected by external forcing during the last deglaciation, remains poorly understood. Here we present a new paleo-rainfall reconstruction based on high-resolution speleothem δ(18)O records from the core region of the South America...

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Detalles Bibliográficos
Autores principales: Novello, Valdir F., Cruz, Francisco W., Vuille, Mathias, Stríkis, Nicolás M., Edwards, R. Lawrence, Cheng, Hai, Emerick, Suellyn, de Paula, Marcos S., Li, Xianglei, Barreto, Eline de S., Karmann, Ivo, Santos, Roberto V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5345026/
https://www.ncbi.nlm.nih.gov/pubmed/28281650
http://dx.doi.org/10.1038/srep44267
Descripción
Sumario:The exact extent, by which the hydrologic cycle in the Neotropics was affected by external forcing during the last deglaciation, remains poorly understood. Here we present a new paleo-rainfall reconstruction based on high-resolution speleothem δ(18)O records from the core region of the South American Monsoon System (SAMS), documenting the changing hydrological conditions over tropical South America (SA), in particular during abrupt millennial-scale events. This new record provides the best-resolved and most accurately constrained geochronology of any proxy from South America for this time period, spanning from the Last Glacial Maximum (LGM) to the mid-Holocene.

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