@Article{HayakawaRoss:2015:LaQuDy,
               author = "Hayakawa, Ericson Hideki and Rossetti, Dilce de F{\'a}tima",
          affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Late quaternary dynamics in the Madeira river basin, southern 
                         Amazonia (Brazil), as revealed by paleomorphological analysis",
              journal = "Anais da Academia Brasileira de Ci{\^e}ncias",
                 year = "2015",
               volume = "87",
               number = "1",
                pages = "29--49",
             keywords = "paleochannels, Amazon Basin, Madeira river, remote sensing, 
                         climate, tectonics.",
             abstract = "Ancient drainage systems are being increasingly documented in the 
                         Amazon basin and their characterization is crucial for 
                         reconstructing fluvial evolution in this area. Fluvial 
                         morphologies, including elongate belts, are well preserved along 
                         the Madeira River. Digital Elevation Model from the Shuttle Radar 
                         Topography Mission favored the detection of these features even 
                         where they are covered by dense rainforest. These 
                         paleomorphologies are attributed to the shifting position of past 
                         tributaries of the Madeira River through avulsions. These radial 
                         paleodrainage networks produced fan-shaped morphologies that 
                         resemble distributary megafans. Distinguishing avulsive tributary 
                         systems from distributary megafans in the sedimentary record is 
                         challenging. Madeira´s paleodrainage reveals the superposition of 
                         tributary channels formed by multiple avulsions within a given 
                         time period, rather than downstream bifurcation of coexisting 
                         channels. Channel avulsion in this Amazonian area during the late 
                         Quaternary is related to tectonics due to features as: (i) 
                         straight lineaments coincident with fault directions; (ii) 
                         northeastward tilting of the terrain with Quaternary strata; and 
                         (iii) several drainage anomalies, including frequent orthogonal 
                         drainage inflections. These characteristics altogether lead to 
                         propose that the radial paleodrainage present at the Madeira River 
                         margin results from successive avulsions of tributary channels 
                         over time due to tectonics.",
                  doi = "10.1590/0001-3765201520130506",
                  url = "http://dx.doi.org/10.1590/0001-3765201520130506",
                 issn = "0001-3765",
             language = "en",
        urlaccessdate = "27 abr. 2024"
}