@Article{NascimentoSVCBKGPLDPCMA:2021:Or&#Mi,
               author = "Nascimento, R. A. and Santos, T. P and Venancio, Igor Martins and 
                         Chiessi, C. M. and Ballalai, J. M. and Kuhnert, H. and Govin, A. 
                         and Portilho Ramos, R. C. and Lessa, D. and Dias, B. B. and Pinho, 
                         T. M. L. and Crivellari, S. and Mulitza, S. and Albuquerque, A. S. 
                         L.",
          affiliation = "{Universidade Federal Fluminense (UFF)} 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)} and {University of Bremen} 
                         and {Universite Paris Saclay} and {University of Bremen} and 
                         {Universidade Federal Fluminense (UFF)} and {Universidade Federal 
                         Fluminense (UFF)} and {Universidade de S{\~a}o Paulo (USP)} and 
                         {Universidade de S{\~a}o Paulo (USP)} and {University of Bremen} 
                         and {Universidade Federal Fluminense (UFF)}",
                title = "Origin of \δ13C minimum events in thermocline and 
                         intermediate waters of the western South Atlantic",
              journal = "Quaternary Science Reviews",
                 year = "2021",
               volume = "272",
                pages = "e107224",
                month = "Nov.",
             keywords = "Glacial terminations, Stable carbon isotopes, Western south 
                         Atlantic, \δ,, 13C minimum Events.",
             abstract = "Stable carbon isotopic (\δ13C) minimum events have been 
                         widely described in marine archives recording the properties of 
                         thermocline and intermediate waters during glacial terminations. 
                         However, the mechanisms associated with these events remain 
                         ambiguous. Here we present three high temporal resolution 
                         deep-dwelling planktonic foraminifera \δ13C records from the 
                         main thermocline and one benthic \δ13C record from the 
                         modern core of Antarctic Intermediate Water (AAIW). Our sediment 
                         cores are distributed along the western South Atlantic from the 
                         equator to the subtropics, with the longest record spanning the 
                         last \∼300 kyr. The results show that \δ13C minimum 
                         events were pervasive features of the last three glacial 
                         terminations and Marine Isotope Stage 4/3 transition in the 
                         western South Atlantic. Two distinct mechanisms were responsible 
                         for the \δ13C minima at the thermocline and intermediate 
                         depths of the Atlantic, respectively. We suggest that the 
                         \δ13C minimum events at the thermocline were mostly driven 
                         by the thermodynamic ocean-atmosphere isotopic equilibration, 
                         which is supported by calculated \δ13C of dissolved 
                         inorganic carbon in the subtropical western South Atlantic as well 
                         as by previously published model simulations. On the other hand, 
                         intermediate depths \δ13C minimum events in the tropics were 
                         likely caused by the slowdown of the Atlantic meridional 
                         overturning circulation and the associated accumulation of 
                         isotopically light carbon at mid and intermediate depths of the 
                         Atlantic Ocean.",
                  doi = "10.1016/j.quascirev.2021.107224",
                  url = "http://dx.doi.org/10.1016/j.quascirev.2021.107224",
                 issn = "0277-3791",
             language = "en",
           targetfile = "nascimento_origin.pdf",
        urlaccessdate = "09 maio 2024"
}