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

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Scientific reports, ISSN: 2045-2322, Vol: 7, Issue: 1, Page: 44267

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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 Show More Hide
Springer Nature
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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 δO 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.