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	Provedor de dados Anais da ABC (AABC) (3) Autor Suguio,Kenitiro (3) Albino,Jacqueline (1) Barreto,Alcina M.F. (1) Bezerra,Francisco H.R. (1) Sallun,Alethea E.M. (1) Palavra-chave Brazil (2) Alluviation (1) Beach morphodynamics (1) Coastal processes (1) Colluviation (1) Doce River (1) Luinescence dating (1) Luminescence dating (1) Northeastern razil (1) Pleistocene (1) Quaternary (1) Quaternary evolution (1) Sea-level change (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2011 (1) 2010 (2) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Sedimentation processes and beach morphodynamics active at the Doce River mouth, Espírito Santo State, Brazil Anais da ABC (AABC) Albino,Jacqueline; Suguio,Kenitiro. The coastal sedimentation model in the Doce River mouth and surroundings extends beyond the hydraulic jetty effect created by its stream-flow. During flooding, marine sediments transported by longshore currents are retained on the updrift side, causing strandline progradation. As the longshore current direction varies, local depositional and erosional effects can be produced and identified laterally within beach profiles from north and south of the Doce River mouth area. Sedimentological studies carried out in this river, beach and adjacent inner continental shelf sands showed that, at present, the influence of Doce River sediments is restricted to the area surrounding its mouth. Meanwhile, beach morphodynamic stages and present-day coastal-plain processes... Tipo: Info:eu-repo/semantics/article Palavras-chave: Coastal processes; Beach morphodynamics; Quaternary evolution; Doce River; Brazil. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000400023 Quaternary colluvial episodes (Upper Paraná River Hydrographic Basin, Brazil) Anais da ABC (AABC) Sallun,Alethea E.M.; Suguio,Kenitiro. Colluvial deposits occur extensively in the Upper Paraná River Hydrographic Basin (UPRHB) in Southeastern,Southern, and Western central Brazil. These deposits were recognized as an allostratigraphic unit and related to creeping during the Quaternary. Every studied colluvial profile is homogeneous, which indicates relatively long periods of landscape stability that is sufficient for the development of a thick soil cover. The deposits were dated by luminescence and indicate periods of more intense colluvial deposition between 6 and 220 ky B.P. These events correspond approximately to the transitions between the oxygen isotope stages 2-3-4 and 5-6, suggesting that this aggradation was influenced by climatic changes. However, the most important alluviation... Tipo: Info:eu-repo/semantics/article Palavras-chave: Colluviation; Alluviation; Quaternary; Luminescence dating; Brazil. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300018 Luminescence dated Late Pleistocene wave-built terraces in northeastern Brazil Anais da ABC (AABC) Suguio,Kenitiro; Bezerra,Francisco H.R.; Barreto,Alcina M.F.. This study presents field and chronological investigations along the coast of northeastern Brazil from ~4°S to 9°S latitude, which corresponds to ~700 km of coastline under a semi-diurnal mesotidal regime. We investigated wave-built terrace deposits and dated sediments using the optically stimulated luminescence and thermoluminescence methods on quartz grains. The wave-built terraces yielded two main age groups: 200-230 ka and 100-130 ka, which we interpreted as depositional ages. We correlated these age groups with oxygen-isotope stages 7c and 5e, respectively. These events correspond to the antepenultimate and penultimate transgressions along the Brazilian coast. The deposits occur mainly in patches on low-lying flat plateaus along the littoral zone and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Luinescence dating; Northeastern razil; Pleistocene; Sea-level change. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000300011 Registros recuperados: 3 Primeira ... 1 ... Última

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