Dynamics of the system oxisol-gleysol and its relationships with aluminous refractory clay in the Western of Minas Gerais State

• Grant number: 14/01131-4
• Support Opportunities: Regular Research Grants
• Start date: July 01, 2014
• End date: June 30, 2016
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geology
• Principal Investigator: Vania Silvia Rosolen
• Grantee: Vania Silvia Rosolen
• Host Institution: Instituto de Geociências e Ciências Exatas (IGCE). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
• City of the host institution: Rio Claro
• Associated researchers: Adolpho José Melfi ; Alfredo Borges de Campos ; Célia Regina Montes ; Guilherme Taitson Bueno ; José Silvio Govone ; Nádia Regina do Nascimento ; Vincent Adrien Marcel Chaplot

Abstract

On the surface of the flat plateaus (chapadas) located in western of Minas Gerais State, the soil landscape is mainly composed by Oxisol-Gleysol. The yellow-reddish Oxisol occurs in well-drained parts of the plateau and Gleysol in imperfectly drained areas corresponding to murundu. The Oxisol-Gleysol association determines the spatial distribution of flora and fauna of cerrado, the topography of the chapadas and the strong differences in soil carbon stocks. We hypothesize that the development of this soil landscape could generate product endowed with economic importance. In this region, the extraction of the refractory clay is exclusively located on the surface of the plateau and in Gleysol. Despite the genetic and economic interest, this soil cover and its relationships with the landscape, as well as the factors that leading the enrichment of aluminum are not well known. The main goal of this research is to determine the relationships between the evolution of Oxisol-Gleysol system and the genesis of aluminous clay deposit (kaolinite and gibbsite) found on the surface of the flat plateaus in the western of Minas Gerais State. Specifically, this research focuses on iron depletion of the Oxisol matrix by hydromorphic conditions which results in the concentration of aluminous-clay and the incision of the drainage network along the geological time. (AU)

Scientific publications

(4)

(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)

ROSOLEN, VANIA; BUENO, GUILHERME TAITSON; MELFI, ADOLPHO JOSE; MONTES, CELIA REGINA; DE SOUSA COELHO, CARLA VANESSA; ISHIDA, DEBORA AYUMI; GOVONE, JOSE SILVIO. Evolution of iron crust and clayey Ferralsol in deeply weathered sandstones of Marilia Formation (Western Minas Gerais State, Brazil). Journal of South American Earth Sciences, v. 79, p. 421-430, NOV 2017. (14/01131-4)

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, v. 177, n. 8, FEB 2020. (14/01131-4, 17/14168-1)

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. (17/14168-1, 14/01131-4)

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. (14/01131-4, 17/14168-1)