Fechar

@Article{McGlueSZCPACAETKGR:2012:LaReHo,
               author = "McGlue, Michael M. and Silva, Aguinaldo and Zani, Hiran and 
                         Corradini, Fabr{\'{\i}}cio A. and Parolin, Mauro and Abel, Erin 
                         and Cohen, Andrew S. and Assine, Mario Luis and Ellis, Geoffrey S. 
                         and Trees, Mark A. and Kuerten, Sidney and Gradella, Frederico dos 
                         Santos and Rasbold, Giliane Gessica",
          affiliation = "{} and {} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Lacustrine records of holocene flood pulse dynamics in the upper 
                         Paraguay River watershed (Pantanal wetlands, Brazil)",
              journal = "Quaternary Research",
                 year = "2012",
               volume = "78",
               number = "2",
                pages = "285--294",
             keywords = "Pantanal wetlands, floodplain lakes, flood pulse, paleolimnology, 
                         upper Paraguay river.",
             abstract = "The Pantanal is the world's largest tropical wetland and a 
                         biodiversity hotspot, yet its response to Quaternary environmental 
                         change is unclear. To address this problem, sediment cores from 
                         shallow lakes connected to the Upper Paraguay River (PR) were 
                         analyzed and radiocarbon dated to track changes in sedimentary 
                         environments. Stratal relations, detrital particle size, multiple 
                         biogeochemical indicators, and sponge spicules suggest fluctuating 
                         lake-level lowstand conditions between ~11,000 and 5300 cal yr BP, 
                         punctuated by sporadic and in some cases erosive flood flows. A 
                         hiatus has been recorded from ~5300 to 2600 cal yr BP, spurred by 
                         confinement of the PR within its channel during an episode of 
                         profound regional drought. Sustained PR flooding caused a 
                         transgression after ~2600 cal yr BP, with lake-level highstand 
                         conditions appearing during the Little Ice Age. Holocene PR flood 
                         pulse dynamics are best explained by variability in effective 
                         precipitation, likely driven by insolation and tropical 
                         sea-surface temperature gradients. Our results provide novel 
                         support for hypotheses on: (1) stratigraphic discontinuity of 
                         floodplain sedimentary archives; (2) late Holocene methane flux 
                         from Southern Hemisphere wetlands; and (3) pre-colonial indigenous 
                         ceramics traditions in western Brazil.",
                  doi = "10.1016/j.yqres.2012.05.015",
                  url = "http://dx.doi.org/10.1016/j.yqres.2012.05.015",
                 issn = "0033-5894",
                label = "lattes: 3368934680028882 3 SilvaZCPACATKGR:2012:LaReHo",
             language = "pt",
        urlaccessdate = "30 abr. 2024"
}


Fechar