@Article{DiasPiBaVeChAl:2021:CoChWe,
               author = "Dias, Bruna B. and Piotrowski, Alexander M. and Barbosa, 
                         C{\'a}tia F. and Venancio, Igor Martins and Chiessi, Cristiano M. 
                         and Albuquerque, Ana Luiza S.",
          affiliation = "{Universidade Federal Fluminense (UFF)} and {University of 
                         Cambridge} and {Universidade Federal Fluminense (UFF)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade de S{\~a}o Paulo (USP)} and {Universidade Federal 
                         Fluminense (UFF)}",
                title = "Coupled changes in western South Atlantic carbon sequestration and 
                         particle reactive element cycling during millennial-scale Holocene 
                         climate variability",
              journal = "Scientific Reports",
                 year = "2021",
               volume = "11",
               number = "1",
                pages = "e24378",
                month = "Dec.",
             abstract = "Continental shelves have the potential to remove atmospheric 
                         carbon dioxide via the biological pump, burying it in seafloor 
                         sediments. The efficiency of marine carbon sequestration changes 
                         rapidly due to variations in biological productivity, organic 
                         carbon oxidation, and burial rate. Here we present a high temporal 
                         resolution record of marine carbon sequestration changes from a 
                         western South Atlantic shelf site sensitive to Brazil 
                         Current-driven upwelling. The comparison of biological records to 
                         rare earth element (REE) patterns from authigenic oxides shows a 
                         strong relationship between higher biological productivity and 
                         stronger particle reactive element cycling (i.e. REE cycling) 
                         during rapid climate change events. This is the first evidence 
                         that authigenic oxides archive past changes in upper ocean REE 
                         cycling by the exported organic carbon. In addition, our data 
                         suggest that Brazil Current-driven upwelling varies on 
                         millennial-scales and in time with continental precipitation 
                         anomalies as registered in Brazilian speleothems during the 
                         Holocene. This indicates an oceanatmosphere control on the 
                         biological pump, most probably related to South American monsoon 
                         system variability.",
                  doi = "10.1038/s41598-021-03821-8",
                  url = "http://dx.doi.org/10.1038/s41598-021-03821-8",
                 issn = "2045-2322",
             language = "en",
           targetfile = "dias_coupled.pdf",
        urlaccessdate = "05 maio 2024"
}