Banca de QUALIFICAÇÃO: ADRIANE GOMES PINHEIRO

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : ADRIANE GOMES PINHEIRO
DATA : 14/07/2017
HORA: 08:30
LOCAL: Sala de Aula 1 - PPGG
TÍTULO:

SEISMOSTRATIGRAPHIC STUDY OF THE RIO GRANDE RISE (SOUTH ATLANTIC)

PALAVRAS-CHAVES:

Rio Grande Rise; Eocene Magmatism; Santos Basin

PÁGINAS: 28
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
RESUMO:

The Rio Grande Rise is the largest assismic plateau in the South Atlantic, being divided into three parts with different geological histories: a western portion, a higher central portion and an eastern portion. Its origin has been attributed to the plume and / or hot spot Tristan-Gough, in the context of the separation between South America and Africa in the Santonian-Conician. In the Eocene, the central portion would have been affected by an alkaline magmatism that would have been responsible for its expressive elevation. Our objective was to reprocess 4 seismic lines in this central portion of the Rio Grande Rise and, with the aid of a Deep Sea Drilling Project (DSDP) drilling hole, to make detailed interpretation of these lines. It was possible to generate a geological-structural profile of regional scale, which confirms the presence of distencional tectonics and suggests a much more recent reactivation. We propose a correlation between the Eocene volcanic buildings in the Rio Grande Rise and the post-rift supersequence magmatism of the Santos Basin, due to their ages and arrangements within the sedimentary package. After a new migration of seismic lines, we identified faults and morpho-structural features (chimneys and pockmarks), which should be evidence of the presence of gas, which is favorable to the presence of hydrocarbons in the Rio Grande Rise.

MEMBROS DA BANCA:
Externo ao Programa - 1755591 - CARLOS CESAR NASCIMENTO DA SILVA
Presidente - 1315614 - DAVID LOPES DE CASTRO
Externo à Instituição - FLAVIO LEMOS DE SANTANA - UFRN