Search Results - "Fortes Drummond Chicarino Varajão, Angélica"
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Ferruginous duricrusts associated with diamond occurrences in the Diamantina Plateau, south Espinhaço Range, Brazil
Published in Journal of South American earth sciences (01-11-2021)“…Macromorphological and micromorphological characterization of the alteration facies associated with geomorphological studies are of great importance for…”
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The Cenozoic deposits of the ancient landscapes of Quadrilátero Ferrífero highlands, Southeastern Brazil: Sedimentation, pedogenesis and landscape evolution
Published in Catena (Giessen) (01-12-2020)“…•The deposits occur on saprolitic material in unconformity contact.•The origin of the sediments would be the lateritic coverings.•The overlying transported…”
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Technological properties of ceramic produced from steatite (soapstone) residues–kaolinite clay ceramic composites
Published in Applied clay science (01-08-2015)“…Ceramic bodies (7.0cm×2.0cm×1.0cm) of kaolinite clay and soapstone residuals collected from workshops in Ouro Preto and Mariana, Minas Gerais, Brazil,…”
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Genesis of Soils from Bauxite in Southeastern Brazil: Resilication as a Soil-Forming Process
Published in Revista Brasileira de Ciência do Solo (01-01-2017)“…ABSTRACT Pedological studies using X-ray diffraction (XRD), X-ray fluorescence (XRF), optical microscopy, and scanning electron microscopy (SEM-EDS) showed a…”
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Mineralogical, micromorphological and geochemical transformations in the initial steps of the weathering process of charnockite from the Caparaó Range, southeastern Brazil
Published in Journal of South American earth sciences (01-12-2014)“…X-ray diffraction (XRD), X-ray Fluorescence (XRF), optical microscopy, Scanning Electron Microscopy coupled with Energy Dispersive Spectrometry (SEM-EDS) and…”
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The role of biological agents in the microstructural and mineralogical transformations in aluminium lateritic deposit in Central Brazil
Published in Geoderma (01-08-2014)“…Petrological studies using X-ray diffraction (XRD) and micromorphological analyses (Optical Microscopy and SEM), were done to understand the role of biological…”
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Pedological aspects as environmental quality indicators of a touristic trail in the Serra do Cipó National Park/MG
Published in REM - International Engineering Journal (01-12-2018)“…Abstract Soil provides important support for anthropogenic activities, and earthen trails, which have always been present in the natural landscape, are routes…”
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Phosphatized volcanic soils of Fernando de Noronha Island, Brazil: Paleoclimates and landscape evolution
Published in Catena (Giessen) (01-12-2020)“…•In Fernando de Noronha Island are soil with different weathering degrees.•Some soils have features overprint paleoweathered regoliths and former…”
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Lithological controls of phosphatization in oceanic islands, Equatorial Atlantic, Brazil
Published in Catena (Giessen) (01-07-2024)“…•Secondary phosphates controlled by microstructural and microchemical factors.•The degree of rock fracturing influences the infiltration of guano at depth.•The…”
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Geochemical evolution of soils developed from pyroclastic rocks of Trindade Island, South Atlantic
Published in Brazilian journal of geology (01-01-2021)“…The geochemical behavior of the major, minor, trace and rare earths elements (REEs) in soil profiles from ultramafic volcanoclastic rocks of the Vulcão do…”
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Phosphatization in the São Pedro and São Paulo Archipelago (SPSPA), Equatorial Atlantic, Brazil: Insights from guano leaching and chemical weathering
Published in Journal of South American earth sciences (15-12-2024)“…This research explores the phosphatization process in the São Pedro and São Paulo Archipelago (SPSPA), located in the Equatorial Atlantic, by analyzing the…”
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COMPACTAÇÃO E EROSÃO DE TRILHAS GEOTURÍSTICAS DE PARQUES DO QUADRILÁTERO FERRÍFERO E SERRA DO ESPINHAÇO MERIDIONAL
Published in Revista brasileira de geomorfologia (01-10-2019)“…As trilhas e seu conteúdo, em maior parte os solos, tendem a não serem monitoradas, seja em ambientes urbanos seja natural, como as unidades de conservação. O…”
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Phytoliths as indicators of pedogenesis and paleoenvironmental changes in the Brazilian cerrado
Published in Journal of geochemical exploration (01-01-2006)“…This paper presents the preliminary results of phytolith analyses of a peat located in the cerrado of the Uberaba municipality, State of Minas Gerais, Brazil…”
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Óxidos de ferro de solos formados sobre gnaisse do Complexo Bação, Quadrilátero Ferrífero, Minas Gerais
Published in Pesquisa agropecuaria brasileira (2006)“…O objetivo deste trabalho foi efetuar a caracterização mineralógica dos óxidos de ferro de horizontes B de três perfis de solos desenvolvidos sobre gnaisse do…”
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Ferricretes in fluvial archives of a tropical iron province: Records of the Late Quaternary landscape dynamics in the Brazilian Atlantic Plateau
Published in Earth surface processes and landforms (01-05-2024)“…The occurrence of iron‐rich rocks in some areas makes possible the formation of duricrusts in positions from the relief tops to the slopes and valley bottoms,…”
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Bauxitisation of anorthosites from Central Brazil
Published in Geoderma (01-11-2011)“…Petrological studies using X-ray diffraction (XRD), X-ray fluorescence (XRF), optical microscopy, scanning electron microscopy (SEM-EDS) and electron…”
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Estudo da evolução da paisagem do quadrilátero ferrífero (Minas Gerais, Brasil) por meio da mensuração das taxas de erosão (10be) e da pedogênese
Published in Revista brasileira de ciência do solo (2009)“…Geomorfologicamente o Quadrilátero Ferrífero é uma região conspícua, onde raízes de estruturas metassedimentares proterozóicas, apresentando feições de um…”
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Non-allophanic Andosols of Trindade Island, south Atlantic: a new soil order in Brazil
Published in Revista Brasileira de Ciência do Solo (16-07-2020)“…The pedological studies carried out so far in Trindade Island (TI) have obtained patchy evidences of allophane, without detailed mineralogical and…”
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Qualidade do Solo como Geoindicador para o Manejo de uma Trilha no Parque Nacional da Serra do Cipó, MG, Brasil
Published in Anuário do Instituto de Geociências (01-01-2012)“…As trilhas em áreas naturais são reconhecidas como meio de deslocamento entre o visitante e os atrativos turísticos. Assim, em áreas protegidas, ao mesmo tempo…”
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