Luiz Antônio de Oliveira

Análise espacial da vulnerabilidade social da gravidez na adolescência

The purpose of this study was to present a spatial analysis of the social vulnerability of teenage pregnancy by geoprocessing data on births and deaths present on the Brazilian Ministry of Health databases in order to support intersectoral management actions and strategies based on spatial analysis in neighborhood areas. The thematic maps of the educational, occupational, birth and marital status of mothers, from all births and deaths in the city, presented a spatial correlation with teenage pregnancy. These maps were superimposed to produce social vulnerability map of adolescent pregnancy and women in general. This process presents itself as a powerful tool for the study of social vulnerability.

Condições de circulação do Sistema Aquífero Guarani no estado de Goiás

Palavras-chave: aquifero totalmente confinado; dupla porosidade; aquifero semiconfinado; Aquifero Guarani; estado de Goias. Abstract Conceptual flow models of the Guarani aquifer system in Goias state, Brazil. The main objective of this work was the proposition of aquifer conceptual models of the Guarani Aquifer System in the state of Goias, Brazil. In the research area, the aquifer system is composed by aeolian sandstone Jurassic age of the Botucatu Formation, and it is considered the most important aquifer in terms of regional quantitative potential. In the state of Goias, it occupies an area of 44,000 km 2 , of this, 9,580 km 2 are outcrops areas and 35,138 km 2 represent confined portions by the basalts of the Serra Geral Formation. On the basis of geologic, isotopic, and hydrochemistry data, different models of groundwater flow were proposed for the Guarani Aquifer System in the state of Goias. In the outcrop areas, two distinct aquifers subtypes were considered: the unconfined intergranular and the double porosity unconfined. In the confining areas, three subtypes could be listed including the fully confined aquifer and the semiconfined with and without storage in the aquitard. The conceptual models of the aquifers are essential for understanding the flow patterns, mathematical and numerical simulation, management and determination of the quantitative potential of the groundwater reservoirs.

Comportamento estrutural do Sistema Aquífero Guarani no estado de Goiás, Brasil

No estado de Goias, Brasil, o Sistema Aquifero Guarani (SAG) e composto por arenitos eolicos de idade jurassica da Formacao Botucatu que cobrem uma grande area de 44.000 km 2 , deste total, 35.138 km 2 estao confinados pelos basaltos da Formacao Serra Geral, enquanto os 9.580 km 2 restantes representam as areas de afloramentos. Com base nos dados de geologia de superficie e aqueles levantados em perfis de pocos tubulares profundos foi possivel estabelecer o comportamento estrutural do SAG, objetivo deste trabalho. As zonas de afloramentos estao distribuidas pelas regioes de Mineiros, Jatai e Apore, com areas de 8.832, 705 e 42 km 2 , respectivamente. O grau de confinamento do aquifero e controlado por duas estruturas geologicas: uma principal, aqui denominada de Depressao Tectonica Associada ao Lineamento do Rio Paranaiba (DTRP), de direcao NE-SW e que condiciona o grau de confinamento na direcao NW-SE e estruturas secundarias estao relacionadas aos lineamentos dos tributarios do rio Paranaiba, de direcao NW-SE, que condicionam o grau de confinamento na direcao W-E. Os eventos tectonicos principais ocorreram no Jurassico, onde foram definidos os limites de deposicao e de atitude das camadas areniticas e no Cretaceo durante o magmatismo da Formacao Serra Geral, que promoveram a reativacao dos planos de falhas do embasamento e a instalacao de um rifte intracontinental, de direcao NE-SW, cuja abrangencia coincide com a DTRP (extensao nordeste do lineamento do rio Parana). O magmatismo fissural que sucedeu a instalacao do rifte seccionou localmente as camadas sedimentares pre-cretacicas.