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Soil-landscape, caracterization of the phases organo-metallic and prospection of refractory clay in the Ferralsol-Gleysol cover (Western of Minas Gerais State)

Grant number: 17/14168-1
Support type:Regular Research Grants
Duration: December 01, 2017 - April 30, 2020
Field of knowledge:Physical Sciences and Mathematics - Geosciences
Principal Investigator:Vania Silvia Rosolen
Grantee:Vania Silvia Rosolen
Home Institution: Instituto de Geociências e Ciências Exatas (IGCE). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
Assoc. researchers:Amauri Antonio Menegário ; César Augusto Moreira ; Guilherme Taitson Bueno ; Jean Louis Stéphane Mounier ; José Silvio Govone ; Manuel Eduardo Ferreira

Abstract

In the sedimentary plateau (Western of Minas Gerais), the pedological cover is constituted by Ferralsol - Gleysol. The well drained Ferralsols are located in upslope, and the Gleysols are present in the hydromorphic topographic depressions, which are influenced by high groundwater level. That areas concentrate highly aluminous clays used as refractory material. The enrichment of alumina and its distribution seems to be dependent on the degree of hydromorphy and concentration of organic matter in the Gleissolos. The research project aims: (1) to map the levels of hydromorphy and soil organic matter concentration as a base to assess the genesis and aluminum enrichment in the clays; (2) to characterize organic substances and organo-metallic interaction in hydromorphic soils to evaluate the role of organic matter in increasing aluminous concentration; and (3) to apply geophysical methods to map saprolite depth, water table level, and aluminum enrichment as a subsidy for mineral exploration. The acquired scientific advances are fully applicable to the needs and challenges inherent to the research area and aim the increase of sustainability of the mining exploration as well as the reduction of environmental impacts in the humid areas of the Cerrado. (AU)

Scientific publications (5)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
COELHO, C. V. S.; MOREIRA, C. A.; ROSOLEN, V; BUENO, G. T.; SALLES, J.; FURLAN, L. M.; GOVONE, J. S. Analyzing the Spatial Occurrence of High-Alumina Clays (Brazil) Using Electrical Resistivity Tomography (ERT). PURE AND APPLIED GEOPHYSICS, FEB 2020. Web of Science Citations: 0.
COELHO, C. V. S.; ROSOLEN, V.; BUENO, G. T.; MESQUITA, A.; MOREIRA, C. A.; FURLAN, L. M.; GOVONE, S. The formation of high-alumina clays in a pedosedimentary sequence of Marilia Formation (Western Minas Gerais, Brazil). Journal of South American Earth Sciences, v. 95, NOV 2019. Web of Science Citations: 0.
ROSOLEN, VANIA; BUENO, GUILHERME TAITSON; MUTEMA, MACDEX; MOREIRA, CESAR AUGUSTO; FARIA JUNIOR, ILIO RODARTE; NOGUEIRA, GRAZIELE; CHAPLOT, VINCENT. On the link between soil hydromorphy and geomorphological development in the Cerrado (Brazil) wetlands. CATENA, v. 176, p. 197-208, MAY 2019. Web of Science Citations: 1.
AMENDOLA, D.; MUTEMA, M.; ROSOLEN, V.; CHAPLOT, V. Soil hydromorphy and soil carbon: A global data analysis. Geoderma, v. 324, p. 9-17, AUG 15 2018. Web of Science Citations: 3.
ROSOLEN, VANIA; BUENO, GUILHERME TAITSON; BONOTTO, DANIEL MARCOS. The application of U-isotopes to assess weathering in contrasted soil-water regime in Brazil. Applied Radiation and Isotopes, v. 132, p. 157-163, FEB 2018. Web of Science Citations: 0.

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