FORAMINIFERAL RECORD OF CHANGES IN SUMMER MONSOON PRECIPITATION AT THE SOUTHEASTERN BRAZILIAN CONTINENTAL MARGIN SINCE THE LAST GLACIAL MAXIMUM
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
19/04/2012
19/04/2012
2010
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| Resumo |
Changes in the oxygen isotopic composition of the planktonic foraminifer Globigerinoides ruber and in the foraminifera faunal composition in a core retrieved from the southeastern Brazilian continental margin were used to infer past changes in the hydrological balance and monsoon precipitation in the western South Atlantic since the Last Glacial Maximum (LGM). The results suggest a first-order orbital (precessional) control on the South American Monsoon precipitation. This agrees with previous studies based on continental proxies except for LGM estimates provided by pollen records. The causes for this disagreement are discussed. FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[04/02819-8] CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico)[141577/2005-3] |
| Identificador |
REVISTA BRASILEIRA DE PALEONTOLOGIA, v.13, n.2, p.79-88, 2010 1519-7530 http://producao.usp.br/handle/BDPI/16716 10.4072/rbp.2010.2.01 |
| Idioma(s) |
eng |
| Publicador |
SOC BRASILEIRA PALEONTOLOGIA |
| Relação |
Revista Brasileira de Paleontologia |
| Direitos |
openAccess Copyright SOC BRASILEIRA PALEONTOLOGIA |
| Palavras-Chave | #foraminifera #precipitation #oxygen isotopes #South Atlantic Convergence Zone #South America Monsoon System #late Quaternary #ATLANTIC CONVERGENCE ZONE #SEA-SURFACE TEMPERATURES #GENERAL-CIRCULATION MODEL #SOUTH-AMERICA #LAKE TITICACA #SUBTROPICAL BRAZIL #CLIMATE DYNAMICS #TROPICAL CLIMATE #STABLE-ISOTOPES #GLOBAL MONSOONS #Paleontology |
| Tipo |
article original article publishedVersion |
