2016
DOI: 10.20502/rbg.v17i3.1006
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Geoquímica Fluvial Aplicada À Avaliação Das Taxas De Intemperismo Químico E Remoção De Solo Da Formação Rio Claro

Abstract: Resumo:O objetivo deste trabalho foi determinar, pela geoquímica fl uvial, as taxas de intemperismo químico e remoção do solo na Formação Rio Claro, usando como área de estudo a bacia do Ribeirão Cachoeirinha, Rio Claro (SP). No exutório desta bacia hidrográfi ca foram analisados os seguintes parâmetros: vazão, sólidos totais dissolvidos (STD), sólidos totais em suspensão (STS), temperatura, pH, condutividade elétrica e oxigênio dissolvido. Os resultados revelaram um fl uxo anual de cátions e ânions de 114.3 t… Show more

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Cited by 6 publications
(3 citation statements)
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“…Extensive and systematic future studies involving the 40 Ar/ 39 Ar geochronology, as already carried out in other areas in Brazil [55][56][57][58][59][73][74][75] and elsewhere [76][77][78][79][80][81][82], will provide valuable insights on the weathering history and paleoclimatic conditions during the precipitation of these supergene Mn minerals, as well as on the landscape evolution in the SBO. Likewise, the current climatic conditions also suggest moderate chemical weathering in the study areas, as already proposed for different rock types in southeastern Brazil [83][84][85][86][87][88][89][90][91][92][93][94][95]. Recently, Meneguel et al [96] and Conceição et al [97] studied the moderate chemical weathering processes to form the raw material used in the porcelain stoneware industry in the São Paulo State and the supergene P, Ti, Nb and REE deposits in the Tapira and Catalão I alkaline-carbonatites complexes, respectively.…”
Section: Origin Of the Supergene Mn Occurrencessupporting
confidence: 64%
See 1 more Smart Citation
“…Extensive and systematic future studies involving the 40 Ar/ 39 Ar geochronology, as already carried out in other areas in Brazil [55][56][57][58][59][73][74][75] and elsewhere [76][77][78][79][80][81][82], will provide valuable insights on the weathering history and paleoclimatic conditions during the precipitation of these supergene Mn minerals, as well as on the landscape evolution in the SBO. Likewise, the current climatic conditions also suggest moderate chemical weathering in the study areas, as already proposed for different rock types in southeastern Brazil [83][84][85][86][87][88][89][90][91][92][93][94][95]. Recently, Meneguel et al [96] and Conceição et al [97] studied the moderate chemical weathering processes to form the raw material used in the porcelain stoneware industry in the São Paulo State and the supergene P, Ti, Nb and REE deposits in the Tapira and Catalão I alkaline-carbonatites complexes, respectively.…”
Section: Origin Of the Supergene Mn Occurrencessupporting
confidence: 64%
“…suggest moderate chemical weathering in the study areas, as already proposed for different rock types in southeastern Brazil [83][84][85][86][87][88][89][90][91][92][93][94][95]. Recently, Meneguel et al [96] and Conceição et al [97] studied the moderate chemical weathering processes to form the raw material used in the porcelain stoneware industry in the São Paulo State and the supergene P, Ti, Nb and REE deposits in the Tapira and Catalão I alkaline-carbonatites complexes, respectively.…”
Section: Origin Of the Supergene Mn Occurrencessupporting
confidence: 59%
“…Os dados relacionados à textura, de maneira geral, apresentaram dominância de material mais fino, havendo a predominância do silte em todas as profundidades estudadas, sendo assim, agrupado como um solo de textura média (SANTOS et al, 2018). Quando comparadas entre períodos seco e chuvoso (areia, silte e argila) não houve diferença significativa, o que é normal, considerando que os mecanismos de intemperismo para formação dos solos envolvem componentes complexos, sendo um deles o tempo, logo o período avaliado foi pequeno para identificação de alteração desses atributos (COUTO JÚNIOR et al, 2016).…”
Section: Propriedades Físicas Do Solo Em Lixão a Céu Abertounclassified