LINEAMENTOS E IMAGENS DE SENSORES REMOTOS E SEU SIGNIFICADO ESTRUTURAL NOS TERRENOS GRANITO-GREENTONE BELT DE CRIXÁS (GO)

Abstract

REMOTE SENSING IMAGE LINEAMENTS AND THEIR STRUCTURAL SIGNIFICANCE IN THE CRIXÁS GRANITE- GREENSTONE BELT TERRANE (GO) This paper presents the results of the interpretation of lineaments from three different remote sensing images (SLAR-GEMS 1000, TM-LANDSAT and SAR-JERS-1) applied to the Crixás granite-greenstone belt terrane, Central Brazil. Two main lineament systems are identified. One is a N30W-N30E pair intepreted as related to a Palaeoproterozoic deformation. The other is a N50W- N70E pair that cuts the former and is interpreted as related to a Neoproterozoic deformation (Brasiliano Cycle). The images from different sensors provides a more complete observation of relief patterns and associated structures and a better framework of the regional lineament geometry, but their kinematics is only provided by data from outcrops.