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The AAPG/Datapages Combined Publications Database

Journal of Petroleum Geology

Abstract

Journal of Petroleum Geology, Vol.9, No.2, pp. 163-178, 1986

©Copyright 2000 Scientific Press, Ltd.

MORPHOSTRUCTURAL ANALYSIS AS AN AID TO HYDROCARBON EXPLORATION IN THE AMAZONAS BASIN, BRAZIL

F. P. de Miranda* and M. P. P. da Boa Hora**

* Petróleo Brasileiro SA, Petrobrás CENPES, Ilha do Fundão, Quadra 7, Rio de Janeiro, RJ. 21910, Brazil.

**Petróleo Brasileiro SA Petrobrás DEPEX, Exploration Dept., 65 Avenida Chile, Rio de Janeiro, RJ. 20005, Brazil.


Abstract

A significant contribution to regional studies in the Amazonas Basin has been provided by the morphostructural analysis of MSS-LANDSAT and SLAR imagery. The interpretation of remote sensing data led to the detection of many morphostructural anomalies in the Upper Amazonas Basin. A comparison between these anomalies and the available geological and geophysical data permitted the definition of two distinct morphostructural domains in this region. The first comprises a set of E- W anomalies, located in a thinner sedimentary cover portion of the Upper Amazonas Basin. This feature was tentatively attributed to a prominent basement hinge line. The second morphostructural domain embraces anomalies situated where the sedimentary pile exceeds 1,600 m. In this domain, many anomalies seem to be related to ENE-striking reverse faults. These morphostructural anomalies are arranged along ENE and E-W aeromagnetic trends forming morphostructural trends.

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