Crust1 0
Mostrando 13-24 de 41 artigos, teses e dissertações.
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13. Metalogênese do depósito de cobre Cerro dos Martins, RS: revisão e geoquímica isotópica de SR, O e C-
This paper presents the geology, chemical data, Pb-Pb zircon ages, sulfur, carbon, oxygen, strontium isotopes and fluid inclusions of Cerro dos Martins copper deposit. The deposit is hosted by the Neoproterozoic volcano-sedimentary sequence of the Camaquã Basin in the Rio Grande do Sul Shield, southern Brazil. The ores consist of a set of Cu-sulfide NW-tren
Publicado em: 2010
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14. Petrogêneses do complexo vulcânico Yate (42, 30ºS), Andes do Sul, Chile / Petrogenesis of the Yate Volcanic Complex (42, 30ºS), Andes Southern, Chile
The Yate Volcanic Complex (CVY) is located in the Southern Volcanic Zone of the Chilean Andes, at 42°30S, comprising the Yate, Gualaihué and Hornopirén volcanoes. The Yate volcano is a major compound type in which effusive activity occurred since Upper Pleistocene (c. 122 ka) until Holocene. Hornopirén and Gualaihué are minor, and represent strombilian-
Publicado em: 2009
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15. Utilização de taro na elaboração de farinha e de produto alimentício reestruturado frito / Use of taro in the preparation of flour and fried restructured food products
The aim of this work was to use taro [Colocasia esculenta (L.) Schott] corm (RM) and cormels (RF) to produce restructured fried foods, with emphasis on the potential of RM for industrial use. Chemical composition, instrumental and sensory analysis were used to characterize raw materials (taro rhizomes) and its products (flour and restructured food). RM provi
Publicado em: 2009
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16. Effect of the application of organic compost on the process of crust formation and the recuperation of degraded soils by water erosion / Efeito da aplicação de composto orgânico sobre o processo de encrostamento e a recuperação de solos degradados pela erosão hídrica
The generation of organic waste along with soil erosion are two major environmental problems worldwide. They are responsible for the reduction of agricultural productivity and high environmental impacts. The objective of this dissertation is the use of organic waste generated in agriculture, in the form of organic compost, for the recovery of degraded areas
Publicado em: 2008
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17. Potencial do efeito antibacteriano in vitro de quitosana extraÃda de Mucor circinelloides UCP 050: uma abordagem para uso em sistemas de conservaÃÃo de alimentos
Recentemente, a quitosana vem despertando bastante interesse em relaÃÃo Ãs suas aplicaÃÃes em produtos alimentÃcios e farmacÃuticos. Entre outras, a atividade antimicrobiana deste biopolÃmero tem sido apontada como uma das suas mais interessantes propriedades. O objetivo deste estudo foi extrair e caracterizar a quitosana da biomassa de Mucor circine
Publicado em: 2008
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18. Otimização da metodologia de determinação de molibdênio em solos e plantas por voltametria de onda quadrada com redissolução catódica adsortiva / Optimization of the molybdenum determination in soils and plant methodology by cathodic adsorptive stripping square- wave voltammetry
Molybdenum is an element essential to life that can be found practically in the whole biosphere. It is present in the nitrase enzyme cofactor and is responsible for the reduction of the N2 molecule and its fixation in the terrestrial crust. In other enzymes, molybdenum acts in reactions of transference of atoms of oxygen to a lot of sub-stratums. Molybdenum
Publicado em: 2008
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19. Evolução estrutural brasiliana da Província Borborema na região de Campina Grande, (PB) / Brasilian structural evolution of Borborema Province in the Campina Grande region (PB)
The systematic mapping of Campina Grande sheet (1:100.000) is very important to understand the structural and geochronological relations between different terranes of the Transversal Zone, Borborema Province (NE Brazil). The mapped area is an excellent natural laboratory to apply classical and modern techniques of structural geology for the study of mechanis
Publicado em: 2008
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20. Geoquímica de rocha total, geocronologia de u-pb e geologia isotópica de sm-nd das rochas ortognáissicas e unidades litológicas associadas da região ipameri - Catalão (Goiás)
The part of the southern Brasília Belt, Tocantins Province, exposed in central Brazil, comprises metasedimentary rocks, metavolcano-sedimentary sequences, amphibolites and intrusive granites, and a large orthogneiss belt. These units are tectonically imbricated, and vary in metamorphic grade from lower greenschist to amphibolite facies, characterized by a 7
Publicado em: 2008
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21. Processos metalogenéticos em ambientes de arco magmático tipo andino, caso de estudo: mineralizações da região dos Andes Patagônicos setentrionais do Chile / Metallogenic processes in andean volcanic arc setting, study case: mineralizations in the Chilean North-Patagonion Andes
In the Patagonian Andes region between 41 and 44° S extensive and continuous plutonic rocks of the North-Patagonian Batholith north segment are exposed. During their evolution most of the granitic rocks were emplaced in metamorphic rocks and other parts were emplaced in Late Jurassic-Berriasan volcanic rocks, Early Cretaceous sedimentary and volcanic rocks,
Publicado em: 2008
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22. BIOCHEMICAL AND PHYSIOLOGICAL EVALUATION OF POTATO CLONES IN RELATION TO ALUMINUM / AVALIAÇÃO BIOQUÍMICA-FISIOLÓGICA DE CLONES DE BATATA EM RELAÇÃO AO ALUMÍNIO
Aluminum (Al) is the most abundant metal in the earths crust, affecting thegrowth and development of plants. The objective of this work was to investigate and compare biochemical and physiological responses of potato clones, Macaca, SMIC148-A, Dakota Rose and Solanum microdontum, exposed to 0, 50, 100, 150 and 200 mg Al L-1 in nutrient solution (pH 4.0). Aft
Publicado em: 2008
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23. Petrologia e metalogenia do Depósito de Cobre Bom Jardim de Goiás (GO)
The Bom Jardim de Goiás Deposit is located at western Goiás State, on the western border of the Arenópolis magmatic arc. A reserve of 4,575,660 t, containing 0,92% Cu, was estimated by Serviço Geológico do Brasil (CPRM). The country rocks comprise vulcanoclastic rocks assigned to the Córrego da Aldeia formation from the Bom Jardim de Goiás Group, with
Publicado em: 2007
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24. "Utilização do método dos povoamentos na caracterização de comunidades bentônicas em trecho do infralitoral consolidado da Enseada das Palmas, Ilha Anchieta, Ubatuba (SP)" / Settlements method for the characterization of hard bottom benthic communities in an infralittoral stretch in Palmas Bay, Anchieta Island, Ubatuba (SP)
The biodiversity characterization of benthic communities in the Brazilian coast is limited to a few works, which studied an area of about 3,400 m2. The objective of this study was to propose a new method, unprecedented in hard bottom marine communities, based in the sampling of landscape heterogeneity units, named physiognomies and settlements, aiming at an
Publicado em: 2007