Centralidade urbana e com��rcio informal: os novos espa��os de consumo no centro de An��polis-GO

Coordena����o de Aperfei��oamento de Pessoal de N��vel Superior (CAPES)

Intrus��o Alcalina de Morro Preto (go): Geologia, Petrografia e Geoqu��mica

A intrus��o alcalina de Morro Preto, localizada ao norte da cidade de Piranhas (GO), corresponde a um corpo irregular a subcircular com aproximados 3,34 km2 alojado em gnaisses atribu��dos ao Arco Magm��tico de Goi��s. �� constitu��da principalmente por carbonatitos e lampr��firos com graus variados de lateriza����o e silicifica����o, al��m de silexitos e, em menor express��o, por sienito ferruginizado e basalto alcalino. Quimicamente mostram baixas concentra����es em Cs, K, Na, Rb e altas concentra����es em elementos como TR, Nb, Ba, Th e U. Isto aparenta resultar de processos de lateriza����o/silicifica����o e da forma����o de fases minerais raras (ou neoforma����o de fases minerais), como fosfatos com alta concentra����o de TR e Th, oxi-hidr��xidos de Fe, Ba, Mn, e oxi e/ou silico-fosfatos de ETR, Nb, Ta, dentre outros, e a forma����o de barita. A presen��a de rochas carbonat��ticas com alto P2O5 e o enriquecimento acentuado em TR sugere a possibilidade de mineraliza����es destes componentes, similar ��s observadas em outros complexos alcalinos de Goi��s e de Minas Gerais, como Catal��o e Arax��. A distribui����o de elementos menores, tra��os e TR mostram que as rochas s��o produtos de altera����o de rochas ��gneas alcalinas como carbonatitos, lampr��firos e basaltos alcalinos, rochas j�� enriquecidas em elementos como Th, U, TR (principalmente em ETRL), Nb e Ta. Os teores anormalmente altos s��o resultado do processo de enriquecimento sup��rgeno (processos de intemperismo como silicifica����o e lateriza����o) e/ou altera����o hidrotermal com baixa temperatura.

Avalia����o da din��mica temporal da evapora����o no reservat��rio de Itumbiara, GO, utilizando dados obtidos por sensoriamento remoto

The object of this work was to study the dynamics of evaporation in the Itumbiara reservoir, located in Central Brazil, using MODIS-derived water surface temperature (product MOD11A1) and meteorological data acquired over the water surface. The evaporation rates were derived from latent heat flux, estimated through a mass transfer model. The estimates were carried out for the period between 1/1/2010 and 31/12/2010. The results showed that evaporation rate tends to increase from January to September and then decrease from September to December. The evaporation rate reached values near 20 mm day-1 in Itumbiara reservoir during the dry season in 2010. The mean evaporation rate for the wet season was 3.66 mm day-1 and 8.25 mm day-1 for the dry season. The total water volume evaporated from Itumbiara reservoir during 2010 was estimated at about 1.7 billion m�� (2,300 mm) which represents 10% of total reservoir volume. The results suggest that advection is the main transport mechanism which drives the evaporation in Itumbiara. The convective processes contribute secondarily to evaporation in Itumbiara reservoir.

Prevalence of uropathogens and antimicrobial susceptibility profile in outpatient from Jata��-GO

Funda����o de Amparo �� Pesquisa do Estado de S��o Paulo (FAPESP)

Candiduria in adults and children: prevalence and antifungal susceptibility in outpatient of Jata��-GO

Funda����o de Amparo �� Pesquisa do Estado de S��o Paulo (FAPESP)

Riqueza de esp��cies de formigas (Hymenoptera: Formicidae) em duas fitofisionomias de cerrado no munic��pio de Ipameri, GO, Brasil

P��s-gradua����o em Agronomia (Entomologia Agr��cola) - FCAV

Modelo estrutural do maci��o rochoso do Dep��sito de Cobre e Ouro da Mina da Chapada, Alto Horizonte, GO

The Cu-Au mine of Chapada is located in the municipality of Alto Horizonte, in the northwestern portion of Goi��s state and is inserted in the geological context of the Brasilia Belt, specifically the Mara Rosa Magmatic Arc, which hosts important deposits of Au and Cu-Au. The rocks found in the study area belong mainly to the Volcano-Sedimentary Sequence of Mara Rosa and are composed of basic to acidic metavolcanic rocks, psammiticpellitic metasedimentary rocks, chemical rocks and also hydrothermal products. Late intrusions occur and are represented by pegmatitic dikes and tonalitic bodies. The ore deposit of the Chapada mine is formed predominantly by the chalcopyrite-pyritemagnetite association, where pyrite is the most abundant mineral. Through the structural mapping of the mining fronts, it was able to recognize three deformational phases (Dn, Dn +1, Dn +2). During the Dn phase, isoclinal recumbent folds were formed, in association with amphibolites facies metamorphism. Later, in phase Dn +1, there was formation of drag folds and intrafolial folds in association with retrograde metamorphism in the greenschist facies. The deformational phase Dn +2, in its turn, was responsible for late symmetrical folding of the foliation, with NS and EW axes, resulting in an interference pattern of the dome-and-basin type

Caracteriza����o geol��gica e estrutural da por����o centro-norte do greenstone belt de Faina, Faina-GO

The area where the study was conducted is located in the central-western state of Goias. It geologically inserts the northern portion of the Greenstone Belt of Faina which belongs to the Archean terranes that fits in Bras��lia Fold Belt and Tocantins Structural Province. This region is known for its greenstone lode gold potential and it was heavily exploited by pioneers and prospectors, leaving many records for where they have been through. Preliminary work done by Orinoco Brasil Minera����o in their required areas at the region showed that the environment is promising for gold mineralization and that the ore is controlled by structures. Therefore the objectives of this work were the geological and structural mapping in semi detail scale to improve geological, stratigraphic and structural controls present attributing possible ore understanding. With the development of the work there were recognized on the desktop three structural domains separated by a thrust fault. For each domain were discriminated the geological units ranging in gneisses, quartzites formed from coarse sediments arcoseanos, and schists. By mapping structures there were found five deformation phases, Dn-2, Dn-1, the Dn event that generated the main foliation (Sn) in high representation and two post-stages Dn with brittle late manifestations. The detail mapping of the Rattlesnake Gallery showed that the mineralized quartz vein is consistent with axial-plane foliation Sn-2 belonging to the oldest deformation Dn-2 phase and that the high grade is distributed in the hinge region folds of the same phase

Mapeamento geol��gico e petrografia do alvo T-578 - Greenstone Belt Pilar de Goi��s (Pilar de Goi��s - GO)

The study area is located in the geological parameters of the Pilar de Goi��s Greenstone Belt (GO), it is part of the Pilar de Goias Group���s meta-volcano-sedimentary sequence. This is a homoclinal package constituted by terrigenous metassediments containing intercalations of meta-ultramafic rocks and iron formations. The units that were informally named in this work, are interpreted as belongs to the Serra do Moinho Formation. Through mineralogical associations the area���s metamorphism were classified as high greenschist facies garnet zone. Prior to this work were detected in the area, through soil samples, some auriferous anomalies. One of the objectives of this work is the detection of possibles hidrotermal alterations related to these anomalies presents in the study area

Caracteriza����o petrogr��fica dos alvos Hidrotermalitos Norte e Sul, Suruca e por����o NW da Mina de Chapada - Alto Horizonte, GO

Main occurrence of Cu-Au in Goias Magmatic Arc, the Chapada mine fits into the geological context of the Brasilia Fold Belt, specifically in the Mara Rosa Magmatic Arc. Four targets, named Hidrotermalito Norte and Sul, NW Chapada Mine Portion and Suruca, are situated in this context, which includes ortogneisses and rocks from the Mara Rosa volcanic-sedimentary sequence. All these targets have been studied due to the possibility of presenting a great potential in Cu-Au, as well as the Chapada mine. Hidrotermalitos Norte and Sul targets presents four lithological sequences, which were identified as: quartz-muscovite schist; muscovite quartzites and kyanite quartzites; quartz-biotite-amphibole schist with pyrite and epidote-amphibole-biotite gneisses with muscovite; muscovite-biotite gneisses. They are metamorphosed to amphibolites facies and retrogressive greenschist facies. Sulfetation represented mainly by pyrite. In the NW Chapada Mine Portion, three main lithological groups were identified and classified as biotite gneisses; honblende-quartz-biotite-schist; amphibolites, with the first group metamorphosed in greenschist facies (low grade), and the other two groups metamorphosed in amphibolites facies, with subsequent retrogressive metamorphism in greenschist facies. Sulfetation is represented by chalcopyrite and pyrite. Finally, also three main lithological groups were identified in the Suruca target, classified as garnet-chlorite-epidote-eiotite gneiss; biotite gneiss and chlorite-biotite gneiss with epidote and muscovite; muscovite-quartz schist, all them metamorphised in amphibolites, with retrometamorphism in greenschist facies. Sulfetation represented by pyrite and sphalerite

Caracteriza����o metam��rfica do Greenstone Belt de Guarinos - GO

The study area comprises Guarinos Greenstone Belt which is located in the centralwest state of Goias and has an approximate size of 280 km2. The present work has as main objective to characterize the metamorphism of the greenstone belt and the relationship between the tectonic events and the metamorphism. For the execution of the work we used data collected in the course Geological Mapping of Crystalline Area of the geology course of UNESP, classes 2009 and 2010, the data collected by Alex Choupina Joaquim Andrade Silva in his master's thesis and the information collected in field in the study area. This compilation of data allows approximately 200 thin sections have been evaluated and allowed the construction of the metamorphic map in scale 1:125.000, also allowed the preparation of the geological map in scale 1:125.000 greestone belt, based on 1:25.000 scale maps performed by students of UNESP and the mapping conducted by Silva (2011). The study area was divided into two tectonic compartments depending on the Shear Zone Engenho Velho that longitudinally crosses study area, with direction approximately NW-SE. The west compartment is bordered by granite-gneiss complex and the east compartment, seems thicker to the south and narrows gradually towards the north and its structure is seen in general as a great monoclinal with NW-SE direction with trim to SW, this way your stack was considered as a package of rocks at the base and metaultramafic metamafic the top, with a second package in tectonic contact, which is composed of detrital and chemical metasedimentary rocks. The east compartment is represented by the intrusion of a large granitic body surrounded by amphibolites and metasediments, is bounded on the east by a granite-gneiss complexes through thrust fault, and is bounded on the west by the other compartment. The structure of the compartment is seen as a major axis oriented roughly... (Completo abstract click electronic access below)

Mapeamento geol��gico-geomorfol��gico na regi��o de Quirin��polis-GO

Geological and geomorphological mapping is an important tool for the characterization of physical environment, thus enabling the planning and use of areas more efficiently. This work represents a geological- geomorphologic mapping on the scale of 1:20.000 in the rural area of Quirin��polis ��� GO town, where outcrop rocks of Paran�� Sedimentary Basin, specifically the Bauru Group. Through the methodology of analysis of integrated elements of the physical environment, it was possible to delineate geological- geomorphological five units, which were characterized as lithology, topography, soil conditions, and operating processes, and the development of weathering profiles bring of great importance for planning of land use as occupation thus avoiding further degradation of the physical environment

Geologia do dep��sito de ouro do alvo guarda-mor, na sequ��ncia Jaupaci (Israel��ndia - GO)

The study area of the Guarda-Mor target (Israel��ndia-GO) contextualizes the terrains of the estaern portion of the Aren��polis Magmatic Arc, more accurately, the Neoproterozoic associations inserted in the field of the Jaupaci volcano-sedimentary sequence. The mapped area is located in the central-western of Goi��s state. The presente paper has as main objective to characterize the structural, petrographic and litogeochemistry of the target rocks beyond to compare these factors with the Mina Bacil��ndia rocks (Fazenda Nova-GO) in order to assess the genetic similarity of volcano-sedimentary units and deposits associated. The Guarda-Mor target is represented by the Jaupaci metavolcanic rocks sequence presenting bimodal volcanism. This sequence consists in metafelsic rocks like sericite/muscovite quartz schist, phyllite and metarriolites and/or metariodacites with calc-alkaline geochemical signature and metamafic rocks with tholeiitic character formed by actinolite - chlorite schist and chlorite - quartz schist. Besides the package of supracrustal rocks also can be observed the occurrence of a local intrusion syn- to late - tectonic named Granito Subvulc��nico. In the study area beyond the marked volcanism also seen an event of crustal melting granitog��nese evidenced by the presence of 2 granites at the east and the west of the map, Granito Israel��ndia and Granito Ipor�� respectively. Structural analysis both at the macro and micro have identified 3 deformation phases. The types of rock on the region record features in the metamorphic facies top and down. These features were subdivided into 3 metamorphic areas: the east and West areas show thermal metamorphism due to intrusion of adjacente granites while the central domain displays features of regional metamorphism. Gold mineralization of the Guarda ���Mor deposit target suggests a possible structural control beyond pronounced the hydrothermal alteration. The mineralization may also be...

Mapeamento geol��gico, caracteriza����o litoqu��mica e potencial econ��mico do corpo de cromitito de Cedrolina, Santa Terezinha de Goi��s - GO

Studies of mafic-ultramafic bodies have been carried out through the years due to their great use on the interpretation of geochemical and geotectonic processes that took place in Earth's history. Amongst them, chromitites are notably recognized for being excellent indicators of their parental magma chemistry and of different geotectonic environments, as well for frequently containing associated noble metals mineralization. Thus the investigation of one of this ultramafic bodies that occurs inside the Pilar de Goi��s Greenstone Belt was proposed, resulting in a detailed map of the chromitites and country rocks, as well as innumerous new data on the chemistry of chromite and associated matrix and accessory minerals. These studies were based upon geological field observations, optic and Scanning Electron Microscope (SEM), besides electron microprobe and cathodoluminescence analysis performed at the ���Eugen F. Stumpfl Laboratory��� of the Montanuniversit��t Institute of Resource Mineralogy, University of Leoben - Leoben, Austria. The chromitites are composed of 40-70% in volume of chromite (~50% on average), 14-55% of talc (~30% on average), 3-60% of chromium rich chlorite (~20% on average), traces to 4% of iron hydroxides and traces to 3% of rutile (1,5% on average). The chromite occurs as large spherical aggregates or as fine grained subhedral crystals disseminated in the matrix. This aggregates have diameters of 0.3-1.5 cm (1 cm on average) and are extremely well rounded, massive to intensively fractured, and commonly deformed to ellipsoids. When observed under the microscope, these aggregates show well rounded to slightly irregular borders, but on their interiors, these structures are represented by fine to medium grained euhedral to subhedral chromite crystals that have sharp contacts between themselves. The rock's matrix is basically made of chlorite and talc that define a metamorphic foliation (Sn), being the talc an alteration product ...

Mapeamento geol��gico no alvo Morro do Corcunda - Greenstone Belt Pilar de Goi��s (Santa Terezinha-GO)

The following work refers to a geologic mapping in the Morro do Corcunda target, located between the cities of Pilar of Goi��s and Santa Terezinha in the northwest portion of the State of Goi��s. This mapping was carried through in 1:10,000 scale and covers an area of approximately 60km2. Collections of samples had been carried through for laborarorial analysis, and from those twenty-three thin scetions have been produced in order to describe the main lithologies that occur in the area. It was possible to observe anomalous gold targets in the region through chip samples carried through during the stage of field work. The gathered field data and the ones that have been made available by the company Yamana Gold Incorporation were congregated, and a data integration was carried through. This integration made possible the correlation of the litologies found in field with the Greenstone Belt Pilar de Goi��s sequence and the structural evolution of the area.