Banca de QUALIFICAÇÃO: MARCELLA SAMYLA DE MIRANDA SILVA
Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.DISCENTE : MARCELLA SAMYLA DE MIRANDA SILVA
DATA : 17/06/2019
HORA: 15:00
LOCAL: Lab. de Geologia
TÍTULO:
Emplacement mechanism and thermal aureole provoked by the Catingueira pluton, Ediacaran of the Transversal Zone, Borborema Province, NE Brazil
PALAVRAS-CHAVES:
São José do Campestre Massif; Ultramafic rocks; Gravimetry; NE of Brazil.
PÁGINAS: 20
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
RESUMO:
With approximately 6.000 km2, The São José do Campestre massif (MSJC) is the oldest continental crust fragment in South America (3.45 Ga) and consists of orthogneisses with TTG affinity (tonalite-trondhjemite-granodiorite) with different degrees of migmatization, in addition to subordinate metasupracrustals. In it, the Senador Elói de Souza Complex, an unit built of granite orthogneisses with hedenbergite tonalites, is marked by the presence of small mafic and ultramafic bodies with a NE-SE or E-W direction with associated carbonate rocks. The goal of this project is to describe the petrography of these units, as well as to correlate them with mineral chemistry data. Furthermore, the use of gravimetric methods allowed the realization of a preliminary profile of N-S direction with the results of the difference of gravity values that are results of the density contrast of the rocks studied. Gravimetric corrections were applied to it that took into account the physical gravitational oscillation of the celestial bodies, magnetic storms, differences in altitude between base/station and sea level, as well as corrections of instrumental drift. Thereby, the profile presents a peak of the values of density represented by the ultramafic body, configuring a gravimetric anomaly in the region. That way, from the integration of available data to the preparation of this final project, it was possible to define a better direction for the research, as well as to verify important data for the understanding of the local geology.
MEMBROS DA BANCA:
Externo ao Programa - 026.534.074-85 - FLAVIO LEMOS DE SANTANA
Interno - 2042352 - FREDERICO CASTRO JOBIM VILALVA
Presidente - 350630 - ZORANO SERGIO DE SOUZA