La administraci��n de los bienes minerales como fuerza motriz del desarrollo social (Tema Central)

The mineral sector has an extreme strategic relevance for the social and economic development of any country. Therefore, proper management of existing mineral resources in a given area is closely linked to the full exercise of sovereignty. Thus, in pretending to guarantee efficient control of resources, the majority of the countries classify mineral resources as state property; however, because of the high cost and the risk involved, the economic exploitation of these resources is more efficient when driven by private initiative. Hence, the basic resource exploitation model is a modern legal concept in which the control over resources belongs to the State, but the direct economic exploitation of this heritage belongs to some individuals according to law and by offering the necessary social and economic counterparts.

A minera����o na por����o m��dia da Plan��cie Costeira do Rio Grande do Sul : estrat��gia para a gest��o sob um enfoque de gerenciamento costeiro integrado

A por����o m��dia da Plan��cie Costeira do Rio Grande do Sul constitui-se numa regi��o cr��tica em termos de planejamento de uso devido a uma estreita conjun����o de fatores de ordem econ��mica, ambiental, social e hist��rico-cultural, estabelecida, em princ��pio, pela presen��a de um importante complexo estuarinolagunar. Nessa ��rea, bem como no restante da zona costeira do Brasil, as diretrizes para o uso sustent��vel dos recursos naturais est��o materializadas em leis e programas governamentais, dos quais o Plano Nacional de Gerenciamento Costeiro representa a linha mestra para as a����es nos tr��s n��veis de governo. A explora����o de recursos minerais nessa regi��o �� uma atividade antiga, relativamente de pouca express��o no contexto estadual, mas de grande significado social, econ��mico e cultural em n��vel regional, sustentando a demanda de v��rios munic��pios da regi��o. Caracteriza-se principalmente pela explora����o de areia e argila para uso na constru����o civil e para aterro, apresentando ainda potencialidade alta para explora����o de turfa e minerais pesados. Com o objetivo de contribuir para a solu����o dos conflitos gerados por um modelo de explora����o mineral ainda inconsistente com as demandas atuais de conserva����o e desenvolvimento, realizou-se uma an��lise ambiental integrada da ��rea dos entornos do estu��rio da Laguna dos Patos, compreendendo os munic��pios de Pelotas, Rio Grande e S��o Jos�� do Norte. A an��lise considerou os marcos legais e institucionais, as caracter��sticas diferenciadas do meio f��sico-natural, os processos econ��micos, sociais e culturais, as caracter��sticas da atividade de minera����o na regi��o e suas repercuss��es e intera����es no sistema ambiental como um todo. As informa����es dispon��veis permitiram a gera����o de um banco de dados no Sistema de Informa����es Geogr��ficas IDRISI 32��, na escala 1: 100.000, o qual forneceu a base para a an��lise interpretativa. Utilizando t��cnicas de geoprocessamento obteve-se uma s��ntese dos diagn��sticos realizados atrav��s da defini����o, mapeamento e descri����o de 19 unidades de planejamento, denominadas unidades geoambientais, posteriormente detalhadas em 108 unidades f��sico-naturais. A s��ntese de uma grande quantidade de dados, espacializada na forma de um mapa digital, auxiliou a defini����o dos crit��rios para elabora����o de um mapa de vulnerabilidade ambiental relativa para a regi��o. Este, aliado ao plano de informa����o que cont��m todas as ��reas com restri����o legal de uso, possibilitou o mapeamento das ��reas mais cr��ticas para gest��o ambiental. Adicionalmente, considerando a potencialidade de recursos minerais para uso na constru����o civil e para aterro, os crit��rios que determinam a maior ou menor atratividade econ��mica para a sua explora����o e as ��reas mais cr��ticas em termos de gest��o ambiental, elaborou-se um mapa prescritivo que indica as ��reas que devem ser consideradas priorit��rias para um gerenciamento preventivo. Finalmente, a an��lise ambiental integrada permitiu a elabora����o de um modelo de um plano de gest��o para o setor, onde �� apresentada uma estrutura seq��encial e ordenada do plano, exemplificada, em cada passo, com as informa����es dispon��veis.

Estudo de cicloestratigrafia nos dep��sitos eopermianos do Grupo Itarar��, Bacia do Paran��, nos Estados de Santa Catarina e Rio Grande do Sul, baseado em dados de testemunho e de perfis de raios gama

O final da Glacia����o Neopaleoz��ica est�� representado hoje no registro sedimentar da Bacia do Paran�� pelas rochas do Grupo Itarar��. No Estado do Rio Grande do Sul e no sudeste do Estado de Santa Catarina seus dep��sitos possuem idade eopermiana, datados desde o Asseliano at�� o Artinskiano. A partir de dados de testemunhos e de perfis de raios gama de dois po��os, um em Santa Catarina (7-RL-04- SC) e outro no Rio Grande do Sul (IB-93-RS), perfurados para pesquisa de carv��o pela CPRM (Companhia de Pesquisa de Recursos Minerais), foram feitas an��lises cicloestratigr��ficas com o intuito de determinar a exist��ncia e a natureza da poss��vel ciclicidade induzida por fen��menos astron��micos presente nesses sedimentos glaciais (basicamente folhelhos e ritmitos). A dist��ncia entre as loca����es originais dos po��os (cerca de 380 km) possibilitou testar a influ��ncia da indu����o astron��mica em localidades distintas da bacia. Dois m��todos de amostragem foram utilizados no estudo, de acordo com a escala dos dados e com a poss��vel indu����o: os perfis de raios gama (191 m para o 7-RL-04-SC e 71 m para o IB-93-RS) foram digitalizados e amostrados em intervalos de 1 cm, com o intuito de testar a presen��a de indu����o pelos ciclos orbitais na escala de 20 mil a 400 mil anos, ou outros fen��menos indutores na escala de 3 mil a 10 mil anos, e os testemunhos foram escaneados nos intervalos com ritmitos, (1,2 m para o 7-RL-04-SC e 38 cm para o IB-93-RS) e transformados em dados em escala de cinza equiespa��ados (0,2538 mm), objetivando a busca por ciclos anuais a milenares A an��lise harm��nica pela transformada r��pida de Fourier demonstrou a presen��a de ciclicidade em ambas as escalas: ciclos orbitais, com per��odos de cerca de 17 mil a 100 mil anos, foram caracterizados em perfil e ciclos solares, com per��odos de cerca de 22 a 1000 anos, foram evidenciados nos testemunhos. Os tempos de acumula����o calculados para o po��o 7-RL-04-SC nas duas escalas mostraram um alto grau de correla����o (cerca de 9400 anos para o intervalo escaneado e aproximadamente 12600 para o mesmo intervalo nos dados do perfil), comprovando a efici��ncia dos m��todos de obten����o dos dados e a utilidade da cicloestratigrafia como ferramenta de an��lise e refinamento cronoestratigr��fico. Quanto ��s espessas se����es de ritmitos, caracter��sticas do Grupo Itarar�� e presentes nos testemunhos, estas t��m sido freq��entemente denominadas de varvitos ou referenciadas como semelhantes a varvitos na literatura. Por��m os resultados mostraram que cada par de ritmitos foi depositado em per��odos de vinte e dois anos, relacionados aos ciclos solares de Hale. A an��lise permitiu ainda o estudo das rela����es existentes entre v��rias vari��veis, como a taxa e o tempo de acumula����o, e a defini����o, na se����o do po��o 7-RL-04-SC, de seq����ncias deposicionais de terceira e de quarta ordem. Essas ��ltimas s��o associadas �� indu����o pelos ciclos orbitais de excentricidade e compar��veis aos per��odos glaciais do Pleistoceno, sendo que as taxas de acumula����o calculadas para os dados do po��o, variando entre 5,2 a 9,3 cm/ka, s��o muito similares ��s taxas de acumula����o do Pleistoceno. A an��lise tamb��m mostrou que a se����o completa do Grupo Itarar�� no po��o IB-93-RS corresponde apenas �� cerca de meio ciclo de precess��o (12342 anos). Como os dois fen��menos de indu����o astron��mica detectados, os ciclos solares e os orbitais, afetam o clima de maneira global, certamente influenciaram a sedimenta����o em outros pontos da bacia.

Tomada de decis��o e otimiza����o de alternativas no planejamento com m��ltiplos objetivos em unidades de gerenciamento : bacia do rio dos Sinos (Rio Grande do Sul)

A tomada de decis��es �� um procedimento complexo e que envolve muitas vari��veis. A an��lise multiobjeto estabelece rela����es para que, em projetos e planejamento de unidades de gerenciamento, sejam analisados os diversos condicionantes envolvidos. Como nos recursos h��dricos a tomada de decis��o envolve cada vez mais a resolu����o de conflitos e um aumento da diversidade de objetivos, a an��lise multiobjetivo vem sendo cada vez mais utilizada..O objetivo deste trabalho �� desenvolver ferramenta e metodologias que busquem formas de quantificar, avaliar e analisar m��ltiplos objetivos envolvidos na tomada de decis��o em projetos, planejamento e gerenciamento de bacias hidrogr��ficas. Para a elabora����o dos estudos foi escolhida a bacia do rio dos Sinos. A bacia do rio dos Sinos abrange parte da Regi��o Metropolitana de Porto Alegre, e �� importante p��lo econ��mico do Estado do Rio Grande do Sul Foram identificados condicionantes para a bacia, quais sejam: efici��ncia econ��mica, melhoria da qualidade da ��gua, comprometimento social e minimiza����o do impacto ambiental. Cada condicionante foi modelado por metodologias j�� consagradas para tal. A novidade �� o casamento delas o que tornou o problema mais complexo de ser resolvido. Foi elaborada fun����o de compromisso para a bacia do rio dos Sinos.Por fim, baseado em prefer��ncias estabelecidas pelo Comit�� da Bacia Hidrogr��fica, foram elaborados tabela e gr��ficos que auxiliam na tomada de decis��o para interven����es no rio, definindo assim, o que deve ser feito primeiro com os recursos dispon��veis em um plano de despolui����o para a bacia.

A tutela constitucional da explora����o de petr��leo em ��guas internacionais em face do princ��pio do desenvolvimento sustent��vel: a possibilidade de responsabiliza����o civil do dano futuro

The demands brought by a society doomed to the constant production of global risks, which whose effects are not immediately noticed effects are not perceived immediately, claim from the Law a new Theory about the Risk, that would offer a broad environmental protection, at the same time it would still be compatible with the idea of economic efficiency, required by the Modern Industry. The expansion of the methods and technologies regarding the exploitation and production of oil causes the constant expansion of the exploitable boundaries, especially in ultra-deep waters with the Pre-salt layer, in Brazil, or the still incipient research about the polymetallic nodules and other mineral sources in international waters, like the Atl��ntico Sudoeste, by the Programme on Ocean Science in Relation do Non Living Resources (OSNLR), a global study performed in partnership with the Intergovernmental Oceanographic Commission, from UNESCO (IOC UNESCO) and also with the Division of Ocean Affairs and Law of the Sea (UNDOALOS). Thus, we aim to analyze the correlation, and possible collisions between the right to a balanced environment and the free exercise of economic activity and the occurrence of environmental damages from the perspective of the exploitation activities of oil and other natural resources in international waters, specifically in the Area, from the constitutional principle of sustainable development and its legitimacy by the environmental international protection. Therefore, this study also aims to evaluate the legal framework for exploration and production of oil in international waters, particularly in the Area, and appraise how the constitutional instruments and mechanisms for environmental protection can impact on the international environmental protection system in order to ensure the present and future generations an ecologically balanced environment, laid down in Article 225 of the Brazilian Constitution, even with so many risks posed by the activities of exploitation and production of oil in international waters. In the meantime, we intend to also intend to investigate the possibility of future liability for environmental damage in order to ensure that constitutional principle and, consequently, and try to define the concept of environmental damage and its implications on the constitutional principle of environmental protection. Given all that was in summary, this work aims to contribute to the evolution of the new Theory of Environmental Risk, turning the law into something more than a punitive or corrective element in this society, but into a legal risk management, that may be triggered even before the consolidation of the damage

Geoqu��mica de sedimentos de fundo dos rios Trair��, Arar�� e da Laguna N��sia Floresta (RN)

The metal concentrations (Al, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn ) and phosforus(P) had been determined analyzed through Plasma Inductively Coupled Plasme Mass Spectrometer for fine fraction, < 0,63 mm in 22 samples. The sample preparation for analysis had been make in the laboratories of geology of the UFRN. This samples procedures consists in register, dry, bolt and send to analysis in external laboratory (LAKEFIELD GEOSOL) in Belo Horizonte (MG, Brazil). The studied area involves the rivers Trairi, Arar�� and N��sia Floresta lagoon, that empties in the sea, situated in the Rio Grande do Norte State. The study objects (Rivers Trair��, Arar�� and N��sia Floresta lagoon) receive influences from urban dumpies, agrotoxics and fertilizer, shrimps tank, pastoral, with this, the concentrations of metals (Al, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb, P, Zn) (except phosforus) in some points of the study area had been above of the value of reference what it leads to classify them as not polluted to moderately polluted, as the calculated Igeo. In front of discussed, can say about the environmental problems found in Trairi, Arar�� and N��sia Floresta Lagoon are still in small scale, since when regard the studied ��rea is over human activity effects

Geoprocessamento aplicado a gest��o de informa����es territoriais do munic��pio de Grossos-RN :estudo multitemporal do uso e ocupa����o do solo

The present work was carried through in the Grossos city - RN and had as main objectives the elaboration of an physicist-ambient, socioeconomic survey and execution a multisecular evaluation of 11 years, between 1986 and 1996, using remote sensing products, to evaluate the modifications of the land use, aiming at the generation of an information database to implementation a geographical information system (GIS) to management the this city. For they had been in such a way raised given referring the two Demographic Censuses carried through by the IBGE (1991 and 2000) and compared, of this form was possible to the accomplishment of an evaluation on the demographic aspects (degree of urbanization, et��ria structure, educational level) and economic (income, habitation, vulnerability, human development). For the ambient physical survey the maps of the natural resources had been confectioned (simplified geology, hydrography, geomorphologi, veget covering, ground association, use and occupation), based in comments of field and orbital products of remote sensoriamento (images Spot-HRVIR, Landsat 5-TM and IKONOS - II), using itself of techniques of digital picture processing. The survey of these data and important in the identification of the potentialities and fragilities of found ecosystems, therefore allows an adequate planning of the partner-economic development by means of an efficient management. The project was part of a partnership between the Grossos city hall the municipal City hall of Grossos - RN and the Geoscience post-graduate program of the UFRN, more specifically the Geomatica laboratory LAGEOMA

Uso de t��cnicas de Geoprocessamento e Sensoriamento Remoto no levantamento e integra����o de dados necess��rios a gest��o ambiental dos campos de extra����o de ��leo e g��s do Canto do Amaro e Alto da Pedra no munic��pio de Mossor�� - RN

The objective of this work is to identify, to chart and to explain the evolution of the soil occupation and the envirionment vulnerability of the areas of Canto do Amaro and Alto da Pedra, in the city of Mossor��-RN, having as base analyzes it multiweather of images of orbital remote sensors, the accomplishment of extensive integrated works of field to a Geographic Information System (GIS). With the use of inserted techniques of it analyzes space inserted in a (GIS), and related with the interpretation and analyzes of products that comes from the Remote Sensoriamento (RS.), make possible resulted significant to reach the objectives of this works. Having as support for the management of the information, the data set gotten of the most varied sources and stored in digital environment, it comes to constitute the geographic data base of this research. The previous knowledge of the spectral behavior of the natural or artificial targets, and the use of algorithms of Processing of Digital images (DIP), it facilitates the interpretation task sufficiently and searchs of new information on the spectral level. Use as background these data, was generated a varied thematic cartography was: Maps of Geology, Geomorfol��gicals Units soils, Vegetation and Use and Occupation of the soil. The crossing in environment SIG, of the above-mentioned maps, generated the maps of Natural and Vulnerability envirionmental of the petroliferous fields of I Canto do Amaro and Alto da Pedra-RN, working in an ambient centered in the management of waters and solid residuos, as well as the analysis of the spatial data, making possible then a more complex analysis of the studied area

Diagn��stico geoambiental com uso do geoprocessamento visando a determina����o de potencialidades de uso do solo para a ��rea estuarina do Rio Curimata�� - Canguaretama(RN)

The activities developed in the coastal zone always arise the researchers interest, mainly when it is developed in fragile ecological areas, not observing the sustenable development laws. In this context, the analysis presented developed around the estuary of Curimatau river, located in the Eastern coast of Rio Grande do Norte state, integrates information provided by high resolution images of orbital remote sensing (IKONOS II, dated of July of 2003) and images of not-orbital remote sensing (Air photographs of DPU, dated of March of 1997) in a multitemporary perspective, diagnosising patterns of use and occupation, evaluating the main area��s impacts, together with the estuarian region fisiograph of Curimatau river. The use of high resolution images consequently allowed generates a precision cartography, facilitating the quantification of the evolution of the landscape and supporting decisions. Was possible yet, the definition of use areas, conservation areas and preservation areas; that were inserted in the concept of Potentialities: a fundamental element to management of vulnerable areas of the natural point of view. The information provided during the research had been stored in an Enviromental Georreferenced Data Base, constructed under the optics of Geographical Information Systems (GIS), that they facilitate the environment management Through fast access to information. The results were satisfactory, because permits the quantification of evolution of the landscape and the mapping. Beyond the geoenviromental diagnosis, was possible develop maps and matrixes that support the Rio Grande do Norte state costal Management.

An��lise dos fatores respons��veis pela alta salinidade do aq����fero fissural da microbacia da Riacho do Feij��o - Pedro Avelino/RN

The fissures aquifer northeast semi-arid Brazilian, present high text frequently of leave, with of low a h��dric availability. The research has as objective main to analyze the components that inside influence in the salinity of the waterbearing fissures of an evaluation physicist-chemistry of the water, leading in consideration the physical interventions of the environment. One used techniques of interpretation of image of Landsat satellite -1999 and delimitation of the micro basin through the topographical map SUDENE. One identified waters of the NaCl type with Ca++ and Mg++ in secondary concentrations. The analyzed wells (15), had presented an average salinity of 5.147 mg/L of STD and a well only supplies drinking waters with 319 mg/L of STD. The recharge of the aquifer one if carries through for infiltration in the open fracture of ortognaisse it migmatization. The type and directions of the fracture do not control the STD. Relations between salinity and out let do not exist. The quality of the well of low salinity is identical the superficial waters (aquifer dam and alluvial). The studies of the meteoric erosion processes had evidenced that in the transformations of the rock in ground, the Ca++ and Na+ are taken for superficial waters. The treatment of the data chemical showed that the grade of Na+, Ca++, Mg++ and Cl-are controlled for the evaporation process, from only water that would have the qualities of superficial waters or the well of low salinity. Already the HCO3-grade is controlled for the precipitation of the dolomite. The STD of this aquifer one would be consequence of the high tax of evaporation of dams constructed in regions of plain topography. You leave them precipitated in deep argillaceous ones dry dams are led for the aquifer in first rains. The research suggests some recommendations for the use and exploitation of the water salinity in piscicultura, carcinicultura, culture of the grass-salt (Atriplex sp), among others

Sitios geologicos e geomorfologicos dos municipios de Acari, Carna��ba dos Dantas e Currais Novos, regi��o sarid�� do Rio Grande do Norte

Geological and Geomorphological Sites of the Towns of Acari, Carna��ba dos Dantas and Currais Novos, Serid�� Region of the Rio Grande do Norte, northeastern Brazil, consist s of a study about geological, geomorphological, mineralogical, palaeontological and archaeological features of the study area, aiming the identification of sites that presents scientific, historical, cultural, economic and ecological excellent importance, and that they deserve to receive special protection for its maintenance for the gifts and future generations. It was developed according with methods adopted for the Brazilian Commitee of Geological and Paleontological Sites SIGEP/UNESCO and by Initiati ve of Sofia for the Preservation of the Mineral Diversity of the Planet, objectifying the description of the main sites, the its environmental problematic and proposal of protectionistic measures. Seven sites with features and typical structures had been identified that they deserve to be aim of protection. In the Acari town, three sites had been identified: geological -geomorphologicalarchaeological site Barra of the Carna��ba; geological-geomorphological site of the Gargalheiras; and geological-geomorphological site Bico of Arara. In Carna��ba of the Dantas, the geomorphological complex river of the Bojo that possesss canyons and deep throats, with rocky-arts registers of the three great rocky-arts traditions of northeast: Northeast Serid�� Sub-tradition, Wasteland and Itaquatiara. In the Currais Novos town, 3 sites had been also identified: geomorphological site Canyon of the Apertados; geomorphological-archaeological-palaeontological complex of the Totor��; e, geologicalmineralogical site Breju��. Because to the environmental problematic that it involves each one of the identified sites, it is proposed, as a guarantee of protection to these sites, its economic exploitation with the ecogeotouristic activity, that it aims at to the integration of the community in programs of environmental education and others, besides providing to the generation of job and income for the towns. Finally, a series of measures is suggested that they aim at to the efectivation of the activity and to the protection of the sites that they can be classified as natural heritage, in accordance with the denomination of UNESCO, in its program World Natural Heritage

Evolu����o geodin��mica e condicionamento estrutural dos terrenos Pianc��-Alto Br��gida e Alto Paje��, dom��nio da zona transversal, NE do Brasil

This thesis aims to advance in the geological knowledge of the region comprising the Pianc��-Alto Br��gida (TPAB) and Alto paje�� (TAP) terranes, in the Transversal Zone Domain (Borborema Province, NE Brazil), with the main objective of understanding the geodynamic evolution and the structural framework of these units. To reach this objective, and besides field work and interpretation of traditional aerial photographs, other tools were employed like of remote sensing products (Landsat 7 ETM+, aeroradiometrics, aeromagnetics and topographical images), lithogeochemical (whole rock) analyses and geochronological dating (U-Pb in zircon), besides integration with literature data. In the area, several precambrian geological units outcrop, represented in the TAP by the paleoproterozoic Serra Talhada and Afogados da Ingazeira complexes, Riacho Gravat�� Complex (metavolcano-sedimentary sequence of Stenian-Tonian age) and Cariris Velhos orthogneisses (of Tonian age). The TPAB comprises the Santana do Garrote (lower unit) and Serra do Olho d'��gua (upper unit) formations of the Cachoeirinha Group (Neoproterozoic III), besides the Pianc�� orthogneisses and Bom Jesus paragneisses; the latter correspond to an older (basement ?) block and a possible high grade equivalent of the Cachoeirinha Group (or Serid�� Group ?), respectively. Several Brasiliano-age plutons occur in both terranes.The aeromagnetic data show the continuity, at depth, of the main shear zones mapped in the region. The Patos, Pernambuco, Boqueir��o dos Cochos, Serra do Caboclo, Afogados da Ingazeira/Jabitac�� and Congo-Cruzeiro do Nordeste shear zones reach depths greater than to 6-16 km. The aeromagnetic signature of other shear zones, like the Juru one, suggests that these structures correspond to shallower crustal features. The satellite images (Landsat 7 ETM+) and aerogamaspectrometric images discriminate different geological units, contributing to the mapping of the structural framework of the region. The Serra do Caboclo Shear Zone was characterized as the boundary/suture between the TPAB and TAP. This structure is an outstanding, pervasive feature that separates contrasting geological units, such as the Neoproterozoic III Cachoeirinha Group in the TPAB and the Riacho Gravat�� Complex and the Cariris Velhos metaplutonics, of Stenian-Tonian age, in the TAP. Occupying different blocks, these units are not found in authoctonous relations, like unconformities and intrusive contacts. Concerning the Cariris Velhos (ca. 1,0 Ga old) event is recorded by radiometric ages of the Riacho Gravat�� Complex metavolcanics and intrusive augen and orthogneisses, all of them displaying geochemical affinities of arc or collisional settings. A structural signature of this event was not recorded in the region, possibly due to its low grade/low strain style, obliterated by the overprinting of younger, higher grade/high strain Brasiliano-age fabrics.The first tectonic event (D1) observed in the Cariris Velhos lithotypes presents contractional kinematics with transport to the NW. Neoproterozoic III geochronologic dates, obtained in late-D1 granitoids, imply a Brasiliano age (ca. 610-600 Ma) for this deformation event. The second tectonic event (D2) characterized in the region corresponds to the Brasiliano transcurrent kinematics of the outstanding shear zones and associated granitoid plutons. The geochronological (U-Pb in zircon) data obtained during this thesis also confirms the occurrence of the Cariris Velhos magmatic suite in the TAP, as well as the Neoproterozoic III age to the Cachoeirinha Group in the TPAB. The TAP (Riacho Gravat�� Complex, augen and orthogneisses) is interpreted as a continental arc possibly accreted to a microcontinent during the Cariris Velhos (Stenian-Tonian) event. Later on, this terrane collided with the TPAB at the beginning of the Brasiliano orogeny (D1 contractional deformation), and both domins were reworked by the transcurrent shear deformation of the D2 event

Paisagem natural pale��gena da bacia sedimentar de S��o Paulo no munic��pio de guarulhos, estado de S��o Paulo

Paleogene sediments of this region represent a significant source of water for urban, industrial and agricultural activities. This basin is part of the Southeastern Brazilian Continental Rift, which occupies a large portion of this geographical area. This study aims to present the evolution of the natural Paleogene landscape, through an analysis of its stratigraphic intcrops and underground portions based on the concept of facies and facies associations. A total of nine clastic and separate lithofacies were recognized and grouped into two main facies associations. These data suggest the existence of two depositional interdigitated systems: fluvial braided fans, which were predominant in parts of the northern and central area, and another composed of lacustrine sediments found in its central-south region. The paleogeography herein outlined will help considerably in the detection of new areas for mineral and water resources prospection, as well as in urban planning projects of this region.

A aplica����o do res��duo de constru����o e demoli����o reciclado no comp��sito solo-cimento

P��s-gradua����o em Geoci��ncias e Meio Ambiente - IGCE

O Brasil e a Guerra do Pac��fico: alian��as estrat��gicas e rela����es diplom��ticas (1879-1883)

Conselho Nacional de Desenvolvimento Cient��fico e Tecnol��gico (CNPq)