Flávia Maria de Fátima Nascimento’s scientific contributions

The interpretation of remote sensing imagery carried out to search some circular structures observed on the region of Paraiba do Sul Valley, SP, Brazil. This region is set in the São Paulo Shear Belt which consists in an expressive transcurrent fault zone of the Southeast Folded Belt. In the studied area can be found tertiary sediments of the Taubaté Basin, sin-tardi to post-tectonic migmatitic and granitic rocks of Upper Pre-Cambrian age and also metasedimentary rocks of Middle to Inferior Pre--Cambrian age. The Pre-Cambrian rocks were remobilize in Upper Pre-Cambrian thermal tectonic events. This remobilization is the principal evidence of policyclism and polimetamorphism of the studied region. The policyclic and polimetamorphic evolution indicates that distensive as much as compressive events caused deformations ranging from microscopic to regional scales. The remote sensing imagery registered some structural features representative of ductile, ruptile-ductile, and ruptile deformations that show the development of a process of single shear on the studied area, during Middle to Upper Pre-Cambrian age. At the end of Pre-Cambrian period the studied area was submitted to distensive efforts responsible for the reactivation of ancient crustal lines of weakness oriented according to NNW-SSE and ENE-WSW. This process had been continuous till Mesozoic to Cenozoic periods and generated flexural folds with perpendicular axes, which are recognizable on the remote sensing imagery as structural highs and lows. These structures resulted from the interference of two flexural folding patterns. Pages: 368-375

O constante crescimento das areas de concentracao humana eo consequente aumento do consumo de agua tornaram-se imperativos na busca de medidas cada vez mais eficientes e modernas de exploracao e preservacao das aguas subterraneas para suprir a crescente demanda deste bem mineral. Neste sentido este trabalho visa apresentar uma proposta metodologica que tem com objetivo a fotointerpretacao e a integracao de dados TM/LANDSAT, na escala 1:100.000 para identificacao do controle geologico-estrutural das fontes hidrominerais da regiao sulde Minas Gerais, abrangendo principalmente os municipios de Campanha, Cambuquira,Lambari, Cristina e Sao Lourenco. A regiao e delimitada pelos paralelos 21 45 e 22 15 de latitude sul e 45 00 e 45 30 de longitude oeste, perfazendo uma area total de 2.838 Km2. Pages: 335-336