Banca de DEFESA: LANA CAROLINE SENA PENA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LANA CAROLINE SENA PENA
DATE: 22/12/2021
TIME: 14:00
LOCAL: defesa remota
TITLE:

GEOENVIRONMENTAL PROCESSES OF THE LITHIUM ELEMENT IN THE DOMAINS WINEMAKING MICROREGION OF GUANAMBI, SOUTH CENTER OF BAHIA, NORTHEASTERN BRAZIL

KEY WORDS:

Geochemical anomaly. Lithium, Geostatistics.

PAGES: 45
BIG AREA: Ciências Exatas e da Terra
AREA: Geociências
SUBÁREA: Geologia
SPECIALTY: Geoquímica
SUMMARY:

The computational methodology associated with exploratory and spatial statistics of
unprecedented numerical results, analyses of soil and sediment samples from environmental
geochemical survey projects carried out and made available by the National Geological Service
(CPRM), allowed the findings of the existence of occurrences of lithium geochemical anomalies in
the Guanambi microregion, State of Bahia. With the application of the box-plot technique, the
coexistence of lithium with the elements Be, Cs, Sn, Rb, Ta, Al, Mg, K and Na was verified.
Covariate analyses characterized the existence of low positive corrections between Be, Sn and Na
and negative corrections between Cs, Mg, Rb, Ta, K and Al, in sediments. For soil samples, the
slopes are positive for Be, Cs, Rb, K and Al, with Sn and Mg and non-existent for Na and Ta. by
employing the Inverse Square of Distance interpolation. The results obtained by the application of
these tools were compared to local geological data, indicating that the lithium anomalies are
probably related to the lithotypes of pneumatolytic manifestations that make up the Guanambi
batholith, its secondary intrusions and the evaporitic levels present in carbonate rocks of the São
Francisco Supergroup.

BANKING MEMBERS:
Interno - 1649202 - LEONARDO SENA GOMES TEIXEIRA
Presidente - 287703 - MANOEL JERONIMO MOREIRA CRUZ
Externa ao Programa - 2420875 - OLGA MARIA FRAGUEIRO OTERO