Banca de QUALIFICAÇÃO: VERONICA JORGE SILVA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : VERONICA JORGE SILVA
DATE: 17/12/2020
TIME: 14:00
LOCAL: Videoconferencia - https://cutt.ly/6fcqwHK
TITLE:

Use of transverse electrical resistance in the identification of more promising areas and estimates of hydraulic transmissivity in the Barreiras Aquifer-RN

KEY WORDS:

Barreiras Aquifer-RN; vertical electrical sounding; transverse electrical resistance; hydraulic transmissivity

PAGES: 30
BIG AREA: Ciências Exatas e da Terra
AREA: Geociências
SUMMARY:

The Barreiras Aquifer is a clastic aquifer has a predominantly unconfined hydraulic character, and is the main water underground resource of the eastern coast of the Rio Grande do Norte State. The lack of reliable well data hinders the ability to prospect more promising areas for water explotation, particularly outside urban perimeters. In this context, the present research is based on the use of geoelectric methods, particularly the transverse electrical resistance parameter for the identification of areas with greater hydrogeological potentialities, and estimates of hydraulic transmissivity. We target an area in the lower course of the Maxaranguape-RN River. The results show a strip in the center of the area with transverse electrical resistances greater than 32,000 Ohm.m, which were derived from vertical electrical sounding-SEVs data inversion and are associated with subareas of higher thicknesses and/ or average resistivity of saturated zone. Linear regression analysis reveal that the average transversal resistivity of the saturated zone is strongly correlated to hydraulic conductivities, but not with the thickness of the saturated zone. Additionally, a map of hydraulic transmissivity estimates for the area was obtained considering geoelectric calibration and aquifer test in adjacent well. This highlights the range of higher transverse electrical resistance which in turn has higher hydraulic transmissives and, therefore are more promising areas for future well location

BANKING MEMBERS:
Presidente - 1714488 - LEANDSON ROBERTO FERNANDES DE LUCENA
Externo ao Programa - 1755591 - CARLOS CESAR NASCIMENTO DA SILVA
Externo ao Programa - 2149478 - JOSE BRAZ DINIZ FILHO