Banca de QUALIFICAÇÃO: JULIANA CAVALCANTE MONTEIRO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : JULIANA CAVALCANTE MONTEIRO
DATE: 13/09/2021
TIME: 09:30
LOCAL: videoconferência
TITLE:

Stratigraphic analysis of the Albian to Eocene sequences of offshore portion of the Potiguar Basin, Brazilian Equatorial Margin.

KEY WORDS:

Brazilian Equatorial Margin; Potiguar Basin; Sequence stratigraphy; Deep water system;
Gravity flows; Depositional Sequences; Turbidite reservoirs.

PAGES: 65
BIG AREA: Ciências Exatas e da Terra
AREA: Geociências
SUMMARY:

The Potiguar Basin is one of the basins of the Brazilian Equatorial Margin and was formed
from the distensional events responsible for the fragmentation of Pangea and the consequent
generation of the African and South American continents. In this way, this research aims to
promote a better understanding of the tectonostratigraphic evolution of the area of interest,
more precisely the interval comprised between the Lower Albian and Middle Eocene
discordances, which in turn comprise all the sequences of the transgressive drift phase and
the oldest of the regressive drift phase of the basin. With the aid of well data and a 3D seismic
volume, the section of this study was investigated in order to identify the depositional
sequences, their internal units, chronostratigraphic boundries, seismic facies, lithofacies and
associated depositional systems. The principal product obtained until this moment
corresponds to the delimitation of six sequences, named S1, S2, S3, S4, S5 and S6,
considering the most detailed analysis, referring to the unidimensional data. When it comes to
results attributed to seismic data, of a more regional nature, it was possible to recognize only
three sequences, two of them being transgressive. This study, based on models applied to
deep marine depositional environments, has the purpose of showing the interference of
sedimentation of the shelf edge in more distal sectors of the basin, since they control
significantly the gravity flows responsible for the deposition of sediments in these portions. In
addition, it is important to highlight that the Potiguar Basin has an exploratory history and its
correlated basin in West Africa, the Benin Basin, presents recent discoveries that indicate a potential sector for discoveries of new exploratory plays. Consequently, the turbidite sandstone
bodies, occurring in the studied interval, could not fail to have their particular attention, since
they point to these exploratory focus in the Potiguar Basin.

BANKING MEMBERS:
Externa ao Programa - 1884342 - DEBORA DO CARMO SOUSA
Externa à Instituição - LILIANE RABELO CRUZ - PETROBRAS
Presidente - 1149363 - VALERIA CENTURION CORDOBA