Banca de QUALIFICAÇÃO: VITOR PEIXOTO LUCAS RIOS

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : VITOR PEIXOTO LUCAS RIOS
DATA : 17/06/2019
HORA: 14:00
LOCAL: Auditório de Engenharia Ambiental, sala 212, CTEC
TÍTULO:
PALAVRAS-CHAVES:

Barrier Island, Vibracoring, GPR, Holocene, Sea-Level Change

PÁGINAS: 121
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
RESUMO:

On the northern coast of Rio Grande do Norte (RN), the barrier islands system’s evolution is emblematic. This system is formed by several generations of barrier islands and paleobarrier islands that appear to developed more to mainland and migrated seawards in Holocene. In coastal zone, intense short-term changes associated with cyclic and seasonal processes, are the causes of high morphological instability evidenced in current barrier islands. The region is also marked by intense seismic activity, originated from an intraplate tectonism reactivated in Neogene. The main morphostructures representing this activity are the transcurrent faults systems of Carnaubais (NE) and Afonso Bezerra (NW), that delimitates the Holocene barrier islands system. The coastal instability seems to develop, in long-term, under morphostructural and morphological pattern that is associated with these faults systems’s lineaments. In this region are installed the main economic sectors of the State. They are salt, shrimp and wind’s farmings, oil industry, and many others activities that are related to coastal environment. Hence, sea-level rise, extreme events, and coastal floods hazards compose major challenges to geoscientists, engineers, policymakers and all community in developing sustainable coastal management strategies that support the resilience of all coastal environment’s activities. In addition, understanding the barrier islands system’s morphodynamics, especially over response to sea-level change, is essential to guide drilling strategies for oil industry explorers. Because, sedimentary sequences deposited in barrier islands systems are configured as importants oil reservoir analogues. For that reasons, its important to understand recent evolution, regional tectonic additive effects, sea-level oscillations, and the ways in which these phenomena respond or influence climatic changes. Part of the problem to understand barrier islands system’s susceptibility to these disturbances is that few studies have been dedicated to investigating the entire system (on a large scale), whose evolution is a product of coexisting ecosystems interaction through hydrodynamic and sedimentary processes, and influenced by pre-existing geological-framework. On this thesis, geological features evidenced by digitally processed satellite’s images are integrated with stratigraphic and sedimentological datas obtained by GPR profiles and conventional coring techniques (vibracoring), respectively. That allows a detailed geological-framework evaluation and its relationship with morphologies and morphostructures observed on the earth surface. Also, making it possible, to determine geological-framework controls that can influence the evolution of one of the most representative barrier islands system of Northern Brazil and of the world.

MEMBROS DA BANCA:
Externa ao Programa - 1222082 - ADA CRISTINA SCUDELARI
Externo ao Programa - 1882375 - MICHAEL VANDESTEEN SILVA SOUTO
Presidente - 350698 - VENERANDO EUSTAQUIO AMARO