Bacia Oriente, Equador: método MT

Abstract

The Oriente Basin is a typical Andean back are one. lt presents a complex geology which is bliefly argued here. It is also focused since the historical aspects passing by the stratigraphy, structural geology and also mentioning the petroliferous system currently explored in the basin. It's proposed one geophysical method of exploration for possible survey in the region of the basin. ln this paper, premises of magnetoteluric method are presented, which is based in the study of natural electromagnetic fields (EM) to infer the subsurface structure. As no public paper about the Oriente Basin was found to analyze the e xp loratory impact that this method may have, a similar study was analyzed in Pannonian Basin, Hungria. This terrestrial basin is also a back are one, created from the closing of the Mediterran ean Sea, in which was done one magnoteluric survey. 81 stations had been de p osited and had acquired given synchronized by GPS. It was possible to observe the data coITelation of MT with seismic data, and also with the litology obtained from information of the well. The good correlation between data MT and the seismic sections shows that the joint interpretation of the data can be beneficial in the determination of more real geologic models.