Beachrocks do Rio Grande Do norte: correlação entre os depósitos costeiros e os de zona costa-afora com base na faciologia, petrografia e diagênese

Beachrocks são rochas sedimentares formadas pela cimentação de sedimentos praiais por carbonato de cálcio em especial, calcita e/ou aragonita em zona de estirâncio. A ocorrência dessas rochas é bastante comum em diversas partes do globo, sobretudo em regiões com latitudes inferiores a 40º. O Rio Grande do Norte possui grande quantidade de beachrocks, os quais afloram tanto em regiões costeiras quanto em zona costa-afora. Os depósitos de beachrocks de zona costeira do referido estado têm sido estudados por diversos autores, os quais abordaram os mais variados temas desde o início do século XX. Por outro lado, os depósitos de zona costa-afora apesar de terem sido estudados por poucos autores têm ganhado atenção apenas nos últimos anos. Porém, nenhum trabalho até o presente fez algum tipo de estudo comparativo de cunho geológico entre os corpos de beachrocks presentes em ambas as zonas: costeira e costa-afora. Sendo assim, a presente dissertação teve o intuito de correlacionar os corpos de beachrocks que afloram em zona costeira aos que estão atualmente dispostos em zona costa-afora, próximo a isóbata de 25 m, levando em consideração seus aspectos petrográficos, diagenéticos e sedimentológicos. Para isso, foram percorridos cerca de 260 km de litoral, correspondendo ao trecho entre os municípios de Extremoz e Tibau, em busca de afloramentos de beachrocks. Seções colunares foram confeccionadas e amostras coletadas em estações de amostragem representativas da zona costeira, ao passo que da zona costa-afora apenas seções delgadas foram analisadas. Trabalhos disponíveis na literatura sobre o tema e área em pauta também foram utilizados. A partir dos dados levantados, observou-se que os beachrocks são formados por diferentes camadas ao longo de um perfil vertical. Estas camadas são claramente identificadas em afloramento pela diferença existente na composição, textura e estruturas sedimentares peculiares a cada uma delas. Seções delgadas foram confeccionadas e analisadas a partir de amostras coletadas nas diferentes camadas de diversos afloramentos. Um afloramento foi escolhido como afloramento modelo sendo este o de São Bento do Norte por apresentar a maior espessura de rocha aflorante (1,9 m). Este tem sido muito bem estudado tanto no corrente trabalho quanto em trabalhos de outros autores. A este foram comparados todos os outros afloramentos analisados. A partir da análise micropetrográfica, foram identificadas 03 microfácies para os beachrocks do Rio Grande do Norte, sendo elas: Quartzarenítica (< 2,9% de bioclastos), Quartzarenítica Bioclástica (entre 3 e 9,9% de bioclastos) e Bio-quartzarenítica (> 10% de bioclastos). Associando essas microfácies às análises sedimentológicas realizadas foi possível propor que as microfácies Quartzarenítica e Bio-quartzarenítica foram depositadas em zona de estirâncio enquanto que a microfácies Quartzarenítica Bioclástica foi depositada em zona de face litorânea superior. A história diagenética dos beachrocks estudados é marcada por quatro principais processos: compactação mecânica, cimentação, dissolução e geração de porosidade secundária, e oxidação. Dentre esses, o processo de cimentação é o mais importante, sendo caracterizado por precipitação de cimento de calcita rica em Mg sob cinco morfologias, a saber: cutículas criptocristalinas, franjas prismáticas isópacas, calcita espática microcristalina, calcita espática equante e agregados pseudo-peloidais. Todas estas morfologias foram formadas durante o estágio de eodiagênese, nas zonas freática marinha ativa ou freática meteórica ativa, corroborando assim com a idéia de que beachrocks têm sua litificação completa a pequenas profundidades. Associando as análises microfaciológicas às diagenéticas foi possível sugerir que a sucessão vertical de camadas vista em alguns beachrocks costeiros representam registros de variações de mais alta frequência do nível do mar durante o Holoceno. A partir daí, baseando-se em informações obtidas através de curvas de variação do nível do mar relativo no Holoceno para o Rio Grande do Norte, disponíveis na literatura, e na correlação aqui realizada entre os beachrocks costeiro e aqueles de zona costa-afora, foi possível inferir que estes últimos representam uma antiga linha de costa formada a idades relativas superiores a 7.000 anos A.P

Avaliação do pré-natal na atenção primária à saúde no Rio grande do Norte: visão das usuárias

ABSTRACT This study aimed to evaluate the quality of prenatal Primary Care in Rio G rande do Norte, Brazil in 2012 under the program Improving Access and Quality of Primary Care. The study was cross - sectional, quantitative. Included 156 mothers of children under 2 years who received prenatal care at the health evaluated. We applied a ques tionnaire on profile, minimum queries, regularity of attendance, laboratory tests, vaccination, participation in educational activities, guidance received, clinical and obstetric procedures and prescription Ferrous sulphate and folic acid. The descriptive analysis of the criteria used Humanization Program Prenatal and Birth. The results showed that 92% of mothers had six or more visits; 85% with the same care was professional; 94% subsequent appointments scheduled. As for tests and procedures the percentage s were: Urine 98%; HIV - 96%; VDRL and 88%; 91% glucose; tetanus vaccination 93%; educational groups 56% with 36% participation, knowledge of the delivery location and 59% achievement breast exam 65%, 33% and preventive gynecological 43%; 98% supplemented wi th 96% Ferrous Sulfate and Folic Acid. It was concluded that there were advances in Rio Grande do Norte concerning assistance and there are weaknesses in the educational practices and conducting some minimal clinical examinations.

Do discurso da resistência à resistência do discurso: as construções identitárias de Mossoró nos enunciados da literatura de cordel

This study has as objective to investigate the identity constructions of Mossoró, at the statements of the string literature. Having as thread the episode of resistance of the city against the group of Lampião at June the thirteenth of nineteen twenty seven, our study built itself at the statements present in nine strings, produced between the space-time of 1927 and 2007, year that Mossoró celebrated eighty years of the episode. Aware that the theme extrapolated the limits of the means of communication of the time and it became part of the everyday of the people from Mossoró, producing at the collective memory the image of a resistance city at the street’s names, at companies’ names, at radios’ names with the “FM Resistance”, at the discourses of the politicians, at the city hall which name is “Palace of the Resistance”, the central question that guides our investigation congregates the discussion around the dialogical relations done at the statements about the theme in vogue. This bias, the research elected as categories of analysis the concept of social voices and chronology, considering that the different identities are produced according to placements made by the subjects, as well as, by the context of production. Admitted at the area of Applied Linguistics (AL) and its line language and pratic of social the research articulates the theorizations provided from the area of Cultural Studies (especially regarding identity) with the theoretical framework of the bakhitinian Circle (regarding the social-historical conception of language and in its dialogical character). The results indicate that even existing an axiological movement around the representations of Mossoró and of the episode of 1927, the statements of the strings converge to a hegemonic discourse, corroborating with the identity profile of resistance transported over eighty decades

Estrutura e desempenho organizacional: uma análise na Universidade Federal do Rio Grande do Norte

This research analyses the components of the organizational structure of the UFRN (Rio Grande do Norte Federal University) and to what extent they affect organizational performance. The study, classified as exploratory and descriptive, was conducted in two phases. The first phase consists of a pilot test to refine the research instrument and to identify the latent components of the organizational structure, and the second to characterize these components and thereby establish relationships with organizational performance. In the first phase, the research was conducted in 20 UFRN organizational units with the participation of 84 employees between technical-administrative and teachers, after considering missing values and outliers, while the second phase occurred in two stages: one conducted with 279 valid cases, consisting of technical-administrative and teachers of 37 UFRN units, and another with 112 managers of the institution in the 49 units identified in this research. The instrument adopted in the first phase was composed of 36 indicators of organizational structure, with six extracted and adapted from the instrument developed by Medeiros (2003) and 30 prepared based on the literature review, from Mintzberg (2012), Hall (1984), Vasconcellos and Hemsley (1997) and Seiffert and Costa (2007) and 7 performance indicators adapted from Fleury and Mills (2006), Vieira and Vieira (2003) and Kaplan and Norton (1997) from the self-assessment instrument in use by the university. In this stage the data were analyzed using the techniques of factor analysis and reliability analysis by means of Cronbach’s alpha, aiming to extract the factors representing the components of the organizational structure. In step 1 of the second phase, the instrument, refined and reduced in the previous phase, with 24 variables of organizational structure and 6 for performance was used, while in step 2, a semi-structured interview guide with questions, organized into nine organizational structure elements, was adopted aiming to gather information to understand the relationship of structure to performance of the UFRN. The techniques used in the second phase, as a whole, were factor analysis and reliability analysis to characterize the components extracted in the previous phase and to validate the performance variables and correlation analysis, regression and content analysis to establish and understand the relationship between structure and performance. The results showed, in the two stages, six latent components of organizational structure in the context under study: training and internalization, communication, hierarchy, decentralization, formalization and departmentalization - with high levels of Cronbach's alpha indexes - which can thereby be characterized as components of UFRN structure. Six performance indicators were validated in this study, showing them as efficient and highly reliable. Finally, it was found that the formalization, communication, decentralization, training and internalization components positively affect UFRN performance, while departmentalization has an adverse affect and hierarchy did not show a significant relationship. The results achieved in this work are important in future studies to support the development of a model structure that represents the specifics of the university

Saberes sobre a literatura: um estudo com professores de 1º ao 5º ano do Ensino Fundamental

El estudio investiga los saberes literários del profesores del Enseño Fundamental de las series iniciales sobre la literatura. Cuando se piensa en la influencia del profesor como aquel que tiene papel decisivo en la enseñanza de la lectura y reconocimiento de la función y formación del mediador profesional, buscamos compreender que conocimiento tiene sobre la literatura. Optamos por los profesores que trabajan en los años iniciales del Enseño Fundamental basadas en el entendimiento de la educación básica, es de suma importância en la formación del lector literário. El estudio se caracteriza por ser un enfoque cualitativo. Adoptamos como procedimientos metodológicos, la entrevista semiestructurada, elaborada com preguntas abiertas que se centran en eventos de lectura de las practicas em família, en la escuela, en la educación superiory en el ejercicio de enseãnza grabadas en audio, además de elevar um diário de campo. La investigación lleva a cabo en cuatro escuelas de la ciudad de Natal – Rn, con dicinueve profesores que trabajan con alumnos de 1º a 5º año del Enseñanza Fundamental. El corpus de la entrevista constituye el análisis de los profesores y es analizado tomando como referencia los princípios de análisis de contenido, especificado por Laurence Bardin (1997). Se tomó como referencial sobre la lectura, la literatura y práctica pedagógica los estudios teóricos de Amarilha (1991, 1992, 1994, 1997, 2003, 2006, 2007, 2009, 2010, 2013); Cosson (2011); Lajolo (2006); Larrossa (1996, 2003); Morin (2010); Yunes (2003, 2010). Sobre la teoría literaria, Candido (2002, 2012); Zilberman (1993); Culler (1999). Acerca de la estética recepción, Eco (1994); Iser (1996); Jauss (2002). Sobre los saberes docentes, Nóvoa (1992, 1997, 2002); Perrenoud (1999, 2002), Tardif (1991, 2000, 2002, 2005). Sobre los saberes literários, Paulino (2004, 2007), dentre outros. El análisis señala que los profesores dominan vários conocimientos sobre la literatura que son transportados a la formación a través del diálogo con otras lecturas, con otros espacios interactivos, en convivência con otros lectores. Cabe destacar el saber que la literatura es humanizar el fator, por lo tanto, la necesidad de escolarizá que a través de las prácticas literárias que involucran estudiantes, professores y comunidad escola. El studio también revela que en la escuela recital literário es necesario para la enseñanza de valores, para enseñar a leer, para inculcar el amor por la lectura. En este contexto, destacamos la importancia de la mediación del profesor como formador de lectores que domina los conocimientos necesarios para satisfacer las necesidades de los estudiantes, desarrollando los letctores conocimientos para fomentar el gusto por el texto literário

Espécies arbóreas nativas ornamentais do Rio Grande do Norte

The Caatinga and Atlantic Forest exhibit great species richness, which can attend requirements for various uses. Considering the current level of degradation of vegetation in Rio Grande do Norte, and the increasing use of exotic species, it is urgent to perform actions for the conservation of these biomes. From this perspective, using native plant species in the urban forestry becomes an instrument for the conservation and enhancement of local biodiversity. In this context, the general objective of this study is to gather and provide information about the ornamental native tree species in the state in order to promote and disseminate their use in urban areas. Specific aims of this work are: (1) evaluate and verify the demand and maintenance costs of native and exotic urban forestry, comparatively, with data obtained in the state (Cap. 1); (2) Provide a ornamental native tree species list in the state, including species already widespread use and suggesting new elements with ornamental potential (Cap. 2); and (3) produce a guide of native tree species as a means of disseminating the results obtained in a way accessible to the society. Analysis of maintenance of urban trees was performed at the UFRN's Central Campus, and the ornamental native tree species survey was carried out through literature survey combined with expeditions to forest fragments in the state. As a result, it was obvious that the maintenance of native vegetation resulted in lower costs and least demand for services highlighting the visible advantage in using a afforestation with regionalized floristic composition. The survey of ornamental native tree species led to the selection of 95 species belonging to 30 families, 17 species (17.35%) occurring exclusively in the Caatinga, 27 species (25.55%) in the Atlantic Forest and more than half (55.10%) occurring in both biomes, which provides a good selection available for the composition of urban forestry, both for cities located in the area of Atlantic Forest (81 spp.) or for those located in the Caatinga (71 spp.). From these results, a guide for the recognition and cultivation of native ornamental trees was prepared, consisting in the initial step in the enhancement of existing floristic potential value with the aim to assist in the development of a regionalized perspective of urban environmental management in the state

Herpetofauna associada à bromélia rupícola, encholirium spectabile, no semiárido brasileiro: revisão da literatura, ecologia das espécies e comportamento de psychosaura agmosticha (squamata: mabuyidae)

Bromeliads are an important microhabitat for the herpetofauna, for being widely used as refuge from predators and their leaf architecture allows humidity maintenance and relatively constant temperature inside, setting a favorable environment for amphibians and reptiles, especially in areas under hydric stress. However, studies addressing this relationship are still incipient and more concentrated in fitotelmatas bromeliad. For non-fitotelmatas rupicolous bromeliads of the gender Encholirium, which develops into rocky outcrops and contains species of semi-arid regions such as the Caatinga, animal-plant relationships are almost unknown. In this context, this study aimed to know the herpetological fauna inhabitant of macambiras bromeliads, Encholirium spectabile, analyzing occupation and use of these bromeliads by different taxa, and the behavioral ecology of the lizard Psychosaura agmosticha, seeking to identify factors associated with this strict relationship in Caatinga. An extensive review of the world literature on the subject “lizards in bromeliads” subsidized this study from the ecological perspective of this association. The field work was carried out at Fazenda Tanques, municipality of Santa Maria / RN, mesoregion of Agreste Potiguar. The observations and/or data collection in daytime and in the evening was conducted monthly during three consecutive days, from January 2011 to August 2012, totaling 450 hour.man of sampling effort. Sixteen species were registered: six lizards (Mabuyidae, Tropiduridae, Gekkonidae and Phyllodactylidae Families), six snakes (Boidae and Dipsadidae Families) and four of amphibians of Hylidae Family. The effect of the forest edge on the distribution of species along the outcrop was significant, with most species found in outcrop edges. Significant difference was found between some pairs of species concerning use of bromeliads, and almost total niche overlap in the use of microhabitat. 62.5% of the species are nocturnal and use these plants for sheltering, breeding and feeding. Regarding the relations between 4 the lizard Psychosaura agmosticha and macambiras bromeliads, behaviors of thermoregulation and foraging in the dry and wet seasons were recorded. Activity periods were concentrated between 7 and 10 am and between 3 and 5 pm in both seasons, showing a clear bimodal pattern. The species basically used the green leaves and there were no significant differences between males and females in the use of bromeliads. Positive associations were found between body temperature and temperatures of bromeliads and air. This species spent 1.95% ± 3.8 of the time moving (PTM) and moved on average 0:36 ± 2.1 seconds per minute (MPM), with significant differences between the wet and dry to PTM, and between the average time of stop and average duration of movements, being considered a sedentary forager. Psychosaura agmosticha, in the study area, is bromelicolous and uses macambiras primarily for thermoregulation and foraging. The results of this study elevate the rupicolous bromeliads Encholirium spectabile as key elements for the maintenance of amphibians and reptiles associated with it, and a clear advantageous association for the conservation of the groups involved.

Descrição de novas espécies de Entomobryoidea, Womersley, 1934 (Collembola, Hexapoda) em remanescentes urbanos de mata atlântica no Estado do Rio Grande do Norte

Springtails are commonly recognized microarthropods edaphic environments. Among the most common (and most visible) forms of these animals are the Entomobryoidea, one of the most diverse groups of springtails. Although more than 8,300 species of Collembola are registered on the globe, in Brazil a little over 310 species are recorded, mostly in the Southeast. In the Northeast, particularly in Rio Grande do Norte, these records are still reduced, even in the Atlantic Forest domain for this admittedly diverse fauna and specifically, for Entomobryoidea. This study aimed to describe new species of Entomobryoidea in urban remnants of Atlantic Forest in Rio Grande do Norte, specifically in Parque das Dunas, Natal in the Environmental Protection Area Genipabu, Extremoz. The collections were made in the months July and August 2012 and January and February 2013, using entomological vacuums and plastic trays. The specimens were identified in the laboratory and described in detail by looking at the literature. In this paper four new species were described Entomobryidae family: Entomobrya sp. nov. 1, Seira sp. nov. 1, Seira sp. nov. 2 and Trogolaphysa sp. nov. 1. Seira sp. nov. 1 has clear similarities to S. paraibensis, however the chaetotaxy of the mesothorax and abdomen IV distinguishes both species. The number of phylogenetic proximity suggests similarities between species. Seira sp. nov. 2 is characterized by its chaetotaxy, mainly in the 'M' head and his mesothorax. There is possibility of a phylogenetic relationship with S. praiana and S. Potiguara due to some similarities. Entomobrya sp. nov. 1 has little resemblance to Brazilian species, from the point of view of color, however there is for the latter detailing the dorsal chaetotaxy, which might obscure evolutionary relationships of proximity. Even so, the main diagnostic feature Entomobrya sp. nov. 1 compared to other species of the genus is the complexity of the chaetotaxy of the fifth abdominal segment. Descriptions of new species of Collembola, potentially endemic to their habitats of occurrence may help to understand the morphological and evolutionary patterns in the sampled taxa, as well as the preservation of the environments in which they were found.

Entre salinas e maledicências: uma leitura do romance Macau e sua aplicabilidade ao ensino de literatura

The objective of this research is to present a reading of the novel Macau (1934), authoring of Aurélio Pinheiro, situated in the context of Brazilian literature produced in the 30s of the last century and analyze the settings of language that reveal individual and social conflicts related to tensions arising of the modernization of a city in the interior of Rio Grande do Norte, in view of the applicability of this knowledge in the educational context. The discussions on the teaching of literature led to an internship experience in the higher education, with the guiding literary reading of the novel Macau. In this sense, this research, bibliographic, analytical and empirical, is in discussions between literature and education that allow us, in addition to a critical reading about Macau romance, a look both in basic education and in teacher training, which justifies linking this thesis in the research line “Reading of the literary text and teaching”. The objectives were met from literary readings of the text, brief study of the author, analysis of the tensions expressed by language, literature defense as a universal right, panoramic review of research on the teaching of literature, reading official documents governing the Brazilian education, discussion of teacher training, training in higher education with application of a didactic sequence, receipt of that novel by teachers in training directed to the applicability in basic education. For this, the research was the theoretical framework primarily the studies of Antonio Candido (1976; 1995), Luís Bueno (2006), Walter Benjamin (1985), Mikhail Bakhtin (2010), Hans Robert Jauss (1994), Theodor Adorno (2006), Antoine Compagnon (2009), and Rildo Cosson (2009).

Literatura: o espaço da criação e transformação identitária na sala de aula

Este trabajo pretende señalar maneras de cambiar el concepto de que los estudiantes de una clase de noveno grado de la escuela primaria en la Escuela de Estado Dr. José Gonçalves de Medeiros, en la ciudad de Acari-RN, tienen de sí mismos, de su entorno cultural y su capacidad de producción poética. Además, las referencias a las desigualdades sociales en Brasil utilizando como eje motivador de leer la poesía de Conceição Evaristo relacionada con la memoria, la lucha y la apreciación de ascendencia africana. Las aportaciones teóricas sobre la situación socio-interaccionismo, la poesía, la poesía en la escuela y la secuencia didáctica colaboran para afirmar que el estudiante de escuela pública en su discurso revela influencia del entorno familiar, social y cultural, sino también el entorno educativo, así como los primeros signos de sentimiento nacional: una mayoría excluida. Su poesía haciendo tiene sus raíces en el entorno socio-cultural y geográfica, lo que denota un principio revuelta, sin embargo, con el reconocimiento de las contribuciones de las clases desfavorecidas para la construcción de nuestro país, el estudiante tiene otras cuestiones, como el mestizo, la identificación África y el orgullo de su origen, la memoria y la cultura. Por lo tanto, se confirmam la relación rizomáticas entre las dos realidades. La elección de la investigación de intervención, en la confluencia con la investigación-acción y la investigación participativa se debe al hecho de que el intercambio de experiencias en la investigación científica es rica y significativa. Con el uso de una secuencia didáctica, cuyo eje sentir la poesía, analizar textos y hacer poesía, el estudiante es llevado a la percepción de las ventanas del universo contenida en este género literario, que es una herramienta comunicativa que ofrece numerosas posibilidades expresión, conocimiento del otro y reconocer mutuamente.

Petrologia e geocronologia U-Pb do plúton granítico Serra da Rajada, porção central do domínio Rio Piranhas - Seridó, Província Borborema, NE do Brasil

The ediacaran plutonic activity related to the Brasilian/Pan-African orogeny is one of the most important geological features in the Borborema Province, represented along its extension by numerous batholiths, stocks, and dikes.The object of this study, the Serra Rajada Granitic Pluton (SRGP), located in the central portion of the Piranhas-Seridó River Domain is an example of this activity. This pluton has been the subject of cartographic, petrographic, geochronological and lithogeochemical studies and its rocks were characterized by two facies. First, the granitic facies were described as monzogranites consisting of K-feldspar, plagioclase (oligoclase - An23-24%), quartz and biotite (main mafic) and opaque minerals such as titanite, allanite, apatite, and zircon as accessories. Alteration minerals are chlorite, white mica and carbonate. Second, the dioritic facies consist of rocks formed by quartz diorite containing plagioclase (dominant mineral phase), quartz and K-feldspar. Biotite and amphibole are the dominant mafic minerals; and titanite, opaque minerals, allanite, zircon and apatite are the accessories. However, previous geological mapping work in the region also identified the presence of other lithostratigraphic units. These were described as gneisses and migmatites with undifferentiated amphibolite lenses related to the Caicó Complex (Paleoproterozoic) and metasedimentary rocks of the Seridó Group (Neoproterozoic) composed of paragneiss with calc-silicate lenses, muscovite quartzite and biotite schist (respectively, the Jucurutu formations, Equador and Seridó), the host rocks for the SRGP rocks. Leucomicrogranite and pegmatite dikes have also been identified, both related to the end of the Ediacaran magmatism and colluvial- eluvial and alluvial deposits related to Neogene and Quaternary, respectively. Lithogeochemical data on the SRGP granite facies, highlighted quite evolved rocks (SiO2 69% to 75%), rich in alkalis (Na2O+K2O ≥ 8.0%), depleted of MgO (≤ 0.45%), CaO (≤ 1.42%) and TiO2 (≤ 0.36%) and moderate levels of Fe2O3t (2.16 to 3.53%). They display transitional nature between metaluminous and peraluminous (predominance of the latter) with sub-alkaline/monzonitic (High K calcium-alkali) affinity. Harker diagrams show negative correlations for Fe2O3t, MgO, and CaO, indicating mafic and plagioclase fractionation. REE spectrum shows enrichment of LREE relative to heavy REE (LaN/YbN = 23.70 to 10.13), with negative anomaly in the Eu (Eu/Eu* = 0.70 to 0.23), suggesting fractionation or accumulation in the feldspars source (plagioclase). Data integration allows to correlate the SRGP rocks with those described as Calcium-Alkaline Suite of equigranular High K. The crystallization conditions of the SRGP rocks were determined from the integration of petrographic and lithogeochemical data. These data indicated intermediate to high conditions of ƒO2 (mineral paragenesis titanite + magnetite + quartz), parent magma saturated in H2O (early biotite crystallization), tardi-magmatic processes of fluids rich in ƒCO2, H2O and O2 causing part of the mineral assembly to change (plagioclase carbonation and saussuritization, biotite chloritization and opaques Sphenitization). Thermobarometrical conditions were estimated based on geochemical parameters (Zr and P2O5) and CIPW normative minerals, with results showing the liquidus minimum temperature of about800°C and the solidus temperature of approximately 700°C. The final/minimum crystallization pressure are suggested to be between 3 and 5 Kbar. The presence of zoned minerals (plagioclase and allanite) associated with lithogeochemical data in bi-log diagrams for Rb vs. Ba and Rb vs. Sr suggest the role of fractional crystallization as the dominant process in the magmatic evolution of SRGP. U-Pb Geochronological and Sm-Nd isotope studies indicated, respectively, the crystallization age of biotite monzogranite as 557 ± 13 Ma, with TDM model age of 2.36 Ga, and εNd value of -20.10 to the crystallization age, allowing to infer paleoproterozoic crustal source for the magma.

Petrologia e geocronologia U-Pb do plúton granítico Serra da Rajada, porção central do domínio Rio Piranhas - Seridó, Província Borborema, NE do Brasil

The ediacaran plutonic activity related to the Brasilian/Pan-African orogeny is one of the most important geological features in the Borborema Province, represented along its extension by numerous batholiths, stocks, and dikes.The object of this study, the Serra Rajada Granitic Pluton (SRGP), located in the central portion of the Piranhas-Seridó River Domain is an example of this activity. This pluton has been the subject of cartographic, petrographic, geochronological and lithogeochemical studies and its rocks were characterized by two facies. First, the granitic facies were described as monzogranites consisting of K-feldspar, plagioclase (oligoclase - An23-24%), quartz and biotite (main mafic) and opaque minerals such as titanite, allanite, apatite, and zircon as accessories. Alteration minerals are chlorite, white mica and carbonate. Second, the dioritic facies consist of rocks formed by quartz diorite containing plagioclase (dominant mineral phase), quartz and K-feldspar. Biotite and amphibole are the dominant mafic minerals; and titanite, opaque minerals, allanite, zircon and apatite are the accessories. However, previous geological mapping work in the region also identified the presence of other lithostratigraphic units. These were described as gneisses and migmatites with undifferentiated amphibolite lenses related to the Caicó Complex (Paleoproterozoic) and metasedimentary rocks of the Seridó Group (Neoproterozoic) composed of paragneiss with calc-silicate lenses, muscovite quartzite and biotite schist (respectively, the Jucurutu formations, Equador and Seridó), the host rocks for the SRGP rocks. Leucomicrogranite and pegmatite dikes have also been identified, both related to the end of the Ediacaran magmatism and colluvial- eluvial and alluvial deposits related to Neogene and Quaternary, respectively. Lithogeochemical data on the SRGP granite facies, highlighted quite evolved rocks (SiO2 69% to 75%), rich in alkalis (Na2O+K2O ≥ 8.0%), depleted of MgO (≤ 0.45%), CaO (≤ 1.42%) and TiO2 (≤ 0.36%) and moderate levels of Fe2O3t (2.16 to 3.53%). They display transitional nature between metaluminous and peraluminous (predominance of the latter) with sub-alkaline/monzonitic (High K calcium-alkali) affinity. Harker diagrams show negative correlations for Fe2O3t, MgO, and CaO, indicating mafic and plagioclase fractionation. REE spectrum shows enrichment of LREE relative to heavy REE (LaN/YbN = 23.70 to 10.13), with negative anomaly in the Eu (Eu/Eu* = 0.70 to 0.23), suggesting fractionation or accumulation in the feldspars source (plagioclase). Data integration allows to correlate the SRGP rocks with those described as Calcium-Alkaline Suite of equigranular High K. The crystallization conditions of the SRGP rocks were determined from the integration of petrographic and lithogeochemical data. These data indicated intermediate to high conditions of ƒO2 (mineral paragenesis titanite + magnetite + quartz), parent magma saturated in H2O (early biotite crystallization), tardi-magmatic processes of fluids rich in ƒCO2, H2O and O2 causing part of the mineral assembly to change (plagioclase carbonation and saussuritization, biotite chloritization and opaques Sphenitization). Thermobarometrical conditions were estimated based on geochemical parameters (Zr and P2O5) and CIPW normative minerals, with results showing the liquidus minimum temperature of about800°C and the solidus temperature of approximately 700°C. The final/minimum crystallization pressure are suggested to be between 3 and 5 Kbar. The presence of zoned minerals (plagioclase and allanite) associated with lithogeochemical data in bi-log diagrams for Rb vs. Ba and Rb vs. Sr suggest the role of fractional crystallization as the dominant process in the magmatic evolution of SRGP. U-Pb Geochronological and Sm-Nd isotope studies indicated, respectively, the crystallization age of biotite monzogranite as 557 ± 13 Ma, with TDM model age of 2.36 Ga, and εNd value of -20.10 to the crystallization age, allowing to infer paleoproterozoic crustal source for the magma.

Para um cinema da crueldade em Antonin Artaud

Antonin Artaud (1896-1948) est un poète, acteur, dramaturge et écrivain français né à Marseille, mais dont la vie artistique se développe principalement à Paris. Artaud est l'auteur de la notion bien connue de Théâtre de cruauté, qui inspire encore aujourd'hui de nombreux groupes de théâtre dans différents coins du monde. Il a écrit sur le théâtre, la poésie, l'art, la philosophie, entre autres. De 1924-1935 est également dédié au cinéma, à la fois dans son théorique et pratique. Une étape un peu inconnu et peu exploré dans sa vie. Elle a joué dans 22 films avec certains des réalisateurs les plus importants dans le monde, et a laissé huit scénarios, dont un seul a été realizé, et huit écrits théoriques sur le cinéma. Cette thèse cherche à examiner précisément cette période insuffisamment étudié dans sa carrière, à partir de trois questions initiales: Artaud développé un sens de la cruauté au-delà du théâtre? Nous pouvons penser à la culture de la cruauté envers les films, en d‘autres termes, un cinéma de la cruauté ? Nous pouvons penser sur le sujet contemporain de cette culture? La réponse à ces trois questions est oui. L'idée de la pensée de la cruauté au cinéma est intervenue concomitamment à leurs expériences et élaborations de ce qu'il a appelé Théâtre de la cruauté. Les deux réflexions sont donnés concomitamment et de manière récursive. Plus que cela, toutes ses productions artistiques, dont la poésie et la peinture, ont été traversés par la notion de cruauté. Nous concluons que leurs élaborations sur un cinéma de la cruauté a eté interrompu au moment même que le développement technique a souligné la possibilité de sa réalisation. De plus, à l'enquête de son travail, nous pouvons voir que presque toute sa pensée a été préparé sous les images, de sorte que nous pouvons même parler d'une pensée cinématographique d‘Antonin Artaud. En conséquence, nous ne concevons pas sa théorie au septième art comme secondaire à leurs intérêts, comme le rapporte la plupart de ses commentateurs, mais absolument essentiel dans le développement de ses écrits, qui jusqu'à maintenant accumulé plus de deux mille pages. En outre, Artaud ne pense pas l'art pour l'art, mais seulement comme un dialogue fructueux et intensif avec l'homme et la culture. L‘art était l'instrument privilégié de proposer un diagnostic et une nouvelle façon de voir la société contemporaine. À travers le film il a imaginé la possibilité d'une reprise de forces éthico-esthétique-politiques perdus sous les décombres de la civilisation occidentale. L'établissement d'une nouvelle relation avec l'image, le sujet de la (post-) modernité pourrait sauver une puissance esthétique du corps et de la pensée que, réinterprété, agiraient envers eux-mêmes et le monde à réinventer.

Para um cinema da crueldade em Antonin Artaud

Antonin Artaud (1896-1948) est un poète, acteur, dramaturge et écrivain français né à Marseille, mais dont la vie artistique se développe principalement à Paris. Artaud est l'auteur de la notion bien connue de Théâtre de cruauté, qui inspire encore aujourd'hui de nombreux groupes de théâtre dans différents coins du monde. Il a écrit sur le théâtre, la poésie, l'art, la philosophie, entre autres. De 1924-1935 est également dédié au cinéma, à la fois dans son théorique et pratique. Une étape un peu inconnu et peu exploré dans sa vie. Elle a joué dans 22 films avec certains des réalisateurs les plus importants dans le monde, et a laissé huit scénarios, dont un seul a été realizé, et huit écrits théoriques sur le cinéma. Cette thèse cherche à examiner précisément cette période insuffisamment étudié dans sa carrière, à partir de trois questions initiales: Artaud développé un sens de la cruauté au-delà du théâtre? Nous pouvons penser à la culture de la cruauté envers les films, en d‘autres termes, un cinéma de la cruauté ? Nous pouvons penser sur le sujet contemporain de cette culture? La réponse à ces trois questions est oui. L'idée de la pensée de la cruauté au cinéma est intervenue concomitamment à leurs expériences et élaborations de ce qu'il a appelé Théâtre de la cruauté. Les deux réflexions sont donnés concomitamment et de manière récursive. Plus que cela, toutes ses productions artistiques, dont la poésie et la peinture, ont été traversés par la notion de cruauté. Nous concluons que leurs élaborations sur un cinéma de la cruauté a eté interrompu au moment même que le développement technique a souligné la possibilité de sa réalisation. De plus, à l'enquête de son travail, nous pouvons voir que presque toute sa pensée a été préparé sous les images, de sorte que nous pouvons même parler d'une pensée cinématographique d‘Antonin Artaud. En conséquence, nous ne concevons pas sa théorie au septième art comme secondaire à leurs intérêts, comme le rapporte la plupart de ses commentateurs, mais absolument essentiel dans le développement de ses écrits, qui jusqu'à maintenant accumulé plus de deux mille pages. En outre, Artaud ne pense pas l'art pour l'art, mais seulement comme un dialogue fructueux et intensif avec l'homme et la culture. L‘art était l'instrument privilégié de proposer un diagnostic et une nouvelle façon de voir la société contemporaine. À travers le film il a imaginé la possibilité d'une reprise de forces éthico-esthétique-politiques perdus sous les décombres de la civilisation occidentale. L'établissement d'une nouvelle relation avec l'image, le sujet de la (post-) modernité pourrait sauver une puissance esthétique du corps et de la pensée que, réinterprété, agiraient envers eux-mêmes et le monde à réinventer.

O cordel como fonte de informação: a vivacidade dos folhetos de cordeis no Rio Grande do Norte

GAUDENCIO, Sale Mario; BORBA, Maria do Socorro de Azevedo. O cordel como fonte de informaçao: a vivacidade dos folhetos de cordeis no Rio Grande do Norte. Biblioonline, Joao Pessoa, v.6, n. 1, p.82-92, 2010.