Distribution and Dynamic of Gibbsite and Kaolinite in an Oxisol of Serra do Mar, southeastern Brazil
نویسندگان
چکیده
Distribution and Dynamic of Gibbsite and Kaolinite in an Oxisol of Serra do Mar, southeastern Brazil Sônia Furian Depto de Geografia – USP-FFLCH Cidade universitaria C.P. 8105, Cep: 05508-900 Sao Paulo – SP, Brazil Laurent Barbiéro IRD, Laboratoire des Mécanismes de Transfert en Géologie, 39, Allées Jules Guesde, 31000 Toulouse, France René Boulet IRD, Instituto de geociencias DGG – USP C.P. 11 348, Cep: 05 422-970 Sao Paulo – SP, Brazil Pierre Curmi INRA-ENSA,Unité Sol et Agronomie de Rennes Quimper 65 rue de St Brieuc, 35042 Rennes Cedex, France Michel Grimaldi IRD, Unité Sol et Agronomie de Rennes Quimper 65, rue de St Brieuc, 35042 Rennes Cedex, France. Catherine Grimaldi INRA-ENSA,Unité Sol et Agronomie de Rennes Quimper 65 rue de St Brieuc, 35042 Rennes Cedex, France
منابع مشابه
Organisation of the soil mantle in tropical southeastern Brazil (Serra do Mar) in relation to landslides processes
The Serra do Mar complex in the southeastern Brazil is subject to frequent landslides especially on the Atlantic coast. The three dimensional organisation of the soil was studied in a 56 ha representative catchment. Upslope in situ soil material has developed from the parent rock, and downslope the soil has resulted from landslide processes. The soil mantle upslope is mainly characterised by sl...
متن کاملOccurrence of Conepatus chinga (Molina) (Mammalia, Carnivora, Mustelidae) and other terrestrial mammals in the Serra do Mar, Paraná, Brazil
In this paper 19 additional mammalian species are reported in the Atlantic forest of the Paranean Serra do Mar, southern Brazil, including threatened and rare species. These findings resulted from a one-year field research in the western slope of the Serra do Mar, Piraquara municipality, with additional review of reports about mammal distribution in the region. Preliminarily mammal richness in ...
متن کاملHeadwater Capture Evidenced by Paleo-Rivers Reconstruction and Population Genetic Structure of the Armored Catfish (Pareiorhaphis garbei) in the Serra do Mar Mountains of Southeastern Brazil
Paleo-drainage connections and headwater stream-captures are two main historical processes shaping the distribution of strictly freshwater fishes. Recently, bathymetric-based methods of paleo-drainage reconstruction have opened new possibilities to investigate how these processes have shaped the genetic structure of freshwater organisms. In this context, the present study used paleo-drainage re...
متن کاملProbing the Surface Charge on the Basal Planes of Kaolinite Particles with High-Resolution Atomic Force Microscopy
High-resolution atomic force microscopy is used to map the surface charge on the basal planes of kaolinite nanoparticles in an ambient solution of variable pH and NaCl or CaCl2 concentration. Using DLVO theory with charge regulation, we determine from the measured force-distance curves the surface charge distribution on both the silica-like and the gibbsite-like basal plane of the kaolinite par...
متن کاملShallow landslide prediction in the Serra do Mar, São Paulo, Brazil
Various methods are currently used in order to predict shallow landslides within the catchment scale. Among them, physically based models present advantages associated with the physical description of processes by means of mathematical equations. The main objective of this research is the prediction of shallow landslides using TRIGRS model, in a pilot catchment located at Serra do Mar mountain ...
متن کامل