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Assinatura geoquímica de unidades coluviais da Bacia do Córrego do Rio Grande - Depressão de Gouveia/MG
(Universidade Federal de Minas GeraisUFMG, 2006-07-11)
Denudation events have been responsible, in Gouveia/MG Depression, for the deposition of colluvial units which cover slopes of the area. Previous works proposed that the soils of the area would have developed on colluvial ...
Kaolinite dating from Acrisol and Ferralsol: A new key to understanding the landscape evolution in NW Amazonia (Brazil)
(2020-07-01)
Ferralsols and Acrisols are major types of soils of the Amazon basin observed on various landform units comprising plateau surfaces, incised hills at their edges and slopes. The present study focuses on an Acrisol developed ...
End-Permian impactogenic earthquake and tsunami deposits in the intracratonic Parana Basin of Brazil
(Geological Soc Amer, Inc, 2018-07-01)
We investigate the stratigraphic record of the Permian-Triassic intracratonic Parana Basin of South America for evidence of the Araguainha impact event. Soft-sediment deformation features are widespread at distances 50-1000 ...
Combined dating of goethites and kaolinites from ferruginous duricrusts. Deciphering the Late Neogene erosion history of Central Amazonia
(2018-02-20)
This study focuses on the dating of millimetric pisoliths from ferruginous duricrusts located in central Amazonia (Brazil), by coupling detailed mineralogy and two relevant dating methods: (i) (U-Th)/He analysis of goethites ...
Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, Argentina
(Springer, Dordrecht, 2014)
Mallines en la Sierra de Comechingones, Sierras Pampeanas, Argentina. Caracterización geológico-geomorfológica y reconstrucción paleoambiental durante el HolocenoWet-meadows in the comechingones range, pampean ranges, Argentina. Geological-geomorphological characterization and paleoenvironmental reconstruction during the holocene
(Servicio Nacional de Geología y Minería, 2020-01)
Los mallines son humedales de alto valor ambiental y son frecuentes en diversas regiones de la Argentina, como la Patagonia, la Cordillera de los Andes y las Sierras Pampeanas. En particular en esta última región, los ...
Mineralogía de arenas del material parental de suelos del noreste de Santiago del Estero, Argentina
(Asociación Argentina de Sedimentología (AAS), 2022-06-14)
El extremo noreste de Santiago del Estero se sitúa en el borde noroccidental de la cuenca de los Bajos Submeridionales (BBSS) en el sector distal del mega-abanico del río Salado. Para esta región se han reportado sedimentos ...
Travertinos fósiles de la terma Los Hornos, Puna austral de Catamarca, ArgentinaFossil travertines from the terma Los Hornos, southern Puna of Catamarca.
(Asociación Geológica Argentina, 2020-10)
La terma Los Hornos es un sistema hidrotermal activo ubicado en el extremo sur de la Puna, noroeste de Argentina, en el marco del cual se desarrolla un registro estratigráfico travertínico. El mismo desarrolla una morfología ...
Sedimentological, geochemical and paleontological insights applied to continental omission surfaces: A new approach for reconstructing an eocene foreland basin in NW Argentina
(Pergamon-Elsevier Science Ltd, 2010-03)
An Eocene foreland basin linked to the Andean uplift in northwestern Argentina has recently been proposed. The basin is divided and partially eroded due to subsequent Neogene orogenic phases, so that a simple reconstruction ...