V
Vander de Freitas Melo
Researcher at Federal University of Paraná
Publications - 126
Citations - 1842
Vander de Freitas Melo is an academic researcher from Federal University of Paraná. The author has contributed to research in topics: Soil water & Kaolinite. The author has an hindex of 19, co-authored 116 publications receiving 1502 citations.
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Ornithogenic cryosols from Maritime Antarctica: Phosphatization as a soil forming process
Felipe Nogueira Bello Simas,Carlos Ernesto Gonçalves Reynaud Schaefer,Vander de Freitas Melo,Manoel R. Albuquerque-Filho,Roberto Ferreira Machado Michel,Victor V. Pereira,Mariana R.M. Gomes,Liovando Marciano da Costa +7 more
TL;DR: In this paper, chemical, physical and mineralogical data as well as some micropedological and submicroscopical characteristics of ornithogenic and non-ornithogenic soils from the western coast of the Admiralty Bay, King George Island.
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Chemical and Mineralogical Properties of Kaolinite-Rich Brazilian Soils
Vander de Freitas Melo,Balwant Singh,Carlos Ernesto Gonçalves Reynaud Schaefer,Roberto Ferreira Novais,Maurício Paulo Ferreira Fontes +4 more
TL;DR: In this paper, the source of K and Mg in these soils and their relationship with the dominant mineral, kaolinite, is addressed by using x-ray diffraction, analytical electron microscopy (AEM), chemical, and thermal methods.
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Clay-sized minerals in permafrost-affected soils (cryosols) from king george island, antarctica
Felipe Nogueira Bello Simas,Carlos Ernesto Gonçalves Reynaud Schaefer,Vander de Freitas Melo,Marcelo Braga Bueno Guerra,Martin Saunders,Robert Gilkes +5 more
TL;DR: In this paper, X-ray diffraction, differential thermal analysis, thermogravimetry, transmission electron microscopy/energy dispersive spectroscopy and selective chemical dissolution were used to characterize the clay fraction of basaltic, acid sulfate and ornithogenic Cryosols from ice-free areas of Admiralty Bay, King George Island.
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Características dos óxidos de ferro e de alumínio de diferentes classes de solos
Vander de Freitas Melo,Maurício Paulo Ferreira Fontes,Roberto Ferreira Novais,Balwant Singh,C. E. G. R. Schaefer +4 more
TL;DR: In this article, the authors evaluated the caracteristicas dos oxidos de ferro and of aluminio, and foram coletadas amostras de solos desenvolvidos de diferentes materiais de origem e estadios de desen-volvimento nos estados of MG, ES, RS and RR.
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Toposseqüências de Latossolos originados de rochas basálticas no Paraná: I - mineralogia da fração argila
André Ademir Ghidin,Vander de Freitas Melo,Valmiqui Costa Lima,Jane Maria Jonasson Costa Lima +3 more
TL;DR: In this paper, a fracao argila foi studied by comparing two topossequencias of Latossolos (Latossolo Bruno acrico LBw and Latossolo Vermelho distroferrico LVdf) no Estado do Parana.