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.
