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Procedure optimization of silicate rocks dissolution in open vessels for ICP-AES analysis.
(Editora Unesp, 1996-01-01)
The main variables found on procedure of the dissolution silicate rocks using acid dissolution in teflon open vessel for analysis of micro elements by ICP-AES has been determined. The results obtained for some samples ...
Procedure optimization of silicate rocks dissolution in open vessels for ICP-AES analysis.
(Editora Unesp, 1996-01-01)
The main variables found on procedure of the dissolution silicate rocks using acid dissolution in teflon open vessel for analysis of micro elements by ICP-AES has been determined. The results obtained for some samples ...
A comparative study of aquifer systems occurring at the Paraná sedimentary basin, Brazil: U-isotopes contribution
(2013-01-01)
The radioactivity due to 238U and 234U in three aquifer systems occurring within the Paraná sedimentary basin, South America, has been investigated. Uranium is much less dissolved from fractured igneous rocks than from the ...
Textural evidence for high-grade ignimbrites formed by low-explosivity eruptions, Parana Magmatic Province, southern Brazil
(Elsevier B.V., 2018-04-15)
The Parana-Etendeka Province is a Lower Cretaceous huge bimodal tholeiitic volcanic province (1 million.km(3)) that predated the Gondwana breakup. Its silicic portion makes up a total volume of at least 20,000 km(3) and ...
FLUVIAL GEOCHEMISTRY APPLIED TO THE EVALUATION OF CHEMICAL WEATHERING RATES AND SOIL REMOVAL IN RIO CLARO FORMATION
(Uniao Geomorfologia Brasileira, 2016-07-01)
This study aimed to determine through fluvial geochemistry chemical weathering rates and soil removal of Rio Claro formation in Cachoeirinha stream basin, Rio Claro (SP). In the river mouth the discharge, total dissolved ...
Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysisOtimização dos procedimento de solubilização de rochas silicáticas em recipientes abertos para análise por icp-aes
(1996-01-01)
The mam variables found on procedure of the dissolution silicate rocks using acid dissolution in teflon open vessel for analysis of micro elements by ICP-AES has been determined. The results obtained for some samples showed ...
Modeling rock-water interaction of fractured aquifer in itabuna/BA regionModelagem da Interação Água/Rocha nos Aquíferos Fraturados da Região de Itabuna/BA
(2019-01-01)
This research aimed to investigate the geochemical mechanisms that govern the strong hydrochemical variations in the fractured aquifers of the Itabuna/BA region. Plagioclase and quartz comprise the major mineralogy of ...