Geologia USP. Série Científica, 2018 Este estudo buscou contribuir com informações sedimentométricas sobre o Córrego Riacho Fundo (CRF), afluente do Lago Paranoá, Brasília, Distrito Federal, historicamente o principal transportador de sedimentos da bacia.
Igor Guedes de Aquino +5 more
doaj +2 more sources
Boletín de la Sociedad Española de Cerámica y Vidrio, 2000 The texture development of a saponite and a montmorillonite, intercalated with zirconium and aluminium oligomers, after calcination at 500 ºC has been studied.
Gil, A., Vicente, M. A., Gandia, L. M.
doaj +2 more sources
Alteração hidrotermal de preenchimento de um veio de Rocha Basáltica associada às ametistas - Vila São Gabriel/Planalto, Rio Grande do Sul [PDF]
, 1990 Clay minerals, zeolites, calcite and silica (quartz, opal and chalcedony) are the most common hydrothermal alteration products of the basalts with veins in São Gabriel (Planalto) Region.
Dudoignon, Patrick +3 more
core +2 more sources
Beneficiamiento de Minerales de Caolín
Quimica Hoy, 2014 En el presente trabajo se muestran los resultados de lavado químico y tratamientos térmicos para llevar a cabo procesos de beneficiamiento en tres tipos de caolines, provenientes de la mina Villa de Reyes en el Estado de San Luis Potosí; México.
Flor E. Palomar, I. gomez
semanticscholar +1 more source
Cristaloquímica y Génesis de Arcillas Magnésicas
, 2018 Las arcillas magnesicas son un grupo de minerales de gran importancia economica a nivel mundial. Son unos recursos escasos que se encuentran restringidos a algunas cuencas sedimentarias como la Cuenca de Polatli (Turquia) y la Cuenca del Tajo (Espana ...
J. G. Rivas
semanticscholar +1 more source
Interaction of Eu-isotopes with saponite as a component of the engineered barrier [PDF]
, 2011 Bentonite is accepted as the best clay material in the engineered barrier of deep geological repositories (DGRs) for radioactive waste disposal. In recent years, the interactions between a wide range of rare-earth (REE) cations and smectites have been ...
Alba Carranza, María Dolores +6 more
core +1 more source
PROVENANCE AND ALTERATION OF GLACIAL SEDIMENTS IN KING GEORGE ISLAND, ANTARCTICA
Journal of Sedimentary Environments, 2019 Mineralogical and geochemical data of glacial sediments of Low Head, King George Island, Antarctica, are presented to approach its provenance and alterations aspects. Mineralogical analyses were performed using petrography and an x-ray diffraction method,
C. V. G. T. Rangel +7 more
semanticscholar +1 more source
Edaphic characterization and distribution of 137Cs of representative soil profiles on mountainous Mediterranean agroecosystems [PDF]
, 2014 19 Pags.- 3 Tabls.- 5 Figs.[ES] Caracterizar los suelos y conocer sus propiedades fisicoquímicas es fundamental para interpretar los datos de 137Cs y evaluar las implicaciones que el tipo y uso de suelo, agrario, ganadero o forestal, tienen sobre el ...
Gaspar Ferrer, Leticia +4 more
core +2 more sources
Influence of temperature and time on the Eu3+ reaction with synthetic Na-Mica-n (n = 2 and 4) [PDF]
, 2016 Bentonite is accepted as the best clay material for the engineered barrier of Deep Geological Repositories (DGRs). The performance of clay as the main component of the engineered barrier in the DGR has been intensively studied and the structure of the ...
Alba Carranza, María Dolores +4 more
core +1 more source
Neoformación de esmectitas magnésicas relacionadas con procesos de paleovertisolización en sedimentos fluvio-lacustres de la "Unidad intermedia del Mioceno" en la Cuenca de Madrid [PDF]
, 1986 Se ha estudiado la evolución mineralógica y geoquimica de materiales correspondientes a la «Unidad Intermedia)) del Mioceno de la cuenca de Madrid. Los resultados ponen de manifiesto la génesis de paleovertisoles como consecuencia de la neoformación de ...
Leguey, S. +4 more
core +3 more sources