Artículo
Abstract:
The degree of iron pyritization (DOP) and degree of trace metal pyritization (DTMP) were evaluated in mangrove soil profiles from an estuarine area located in Rio de Janeiro (SE Brazil). The soil pH was negatively correlated with redox potential (Eh) and positively correlated with DOP and DTMP of some elements (Mn, Cu and Pb), suggesting that pyrite oxidation generated acidity and can affect the importance of pyrite as a trace metal-binding phase, mainly in response to spatial variability in tidal flooding. Besides these aerobic oxidation effects, results from a sequential extraction analyses of reactive phases evidenced that Mn oxidized phase consumption in reaction with pyrite can be also important to determine the pyritization of trace elements. Cumulative effects of these aerobic and anaerobic oxidation processes were evidenced as factors affecting the capacity of mangrove soils to act as a sink for trace metals through pyritization processes. © 2013 Elsevier Ltd. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | Trace metal pyritization variability in response to mangrove soil aerobic and anaerobic oxidation processes |
| Autor: | Machado, W.; Borrelli, N.L.; Ferreira, T.O.; Marques, A.G.B.; Osterrieth, M.; Guizan, C. |
| Filiación: | Departamento de Geoquímica, Instituto de Química, Universidade Federal Fluminense, Niterói, RJ 24020-141, Brazil Instituto de Geología de Costas y del Cuaternario (IGCyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, CC 722, Correo Central (7600) Mar del Plata, Buenos Aires, Argentina Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina Departamento de Ciências do Solo, Universidade de São Paulo, ESALQ/USP Piracicaba, São Paulo, Brazil Laboratório de Geologia Marinha-LAGEMAR, Departamento de Geologia, Universidade Federal Fluminense, Niterói, RJ 24210-340, Brazil |
| Idioma: | Inglés |
| Palabras clave: | Metals; Pyrite oxidation; Pyritization; Redox processes; Sequential extraction |
| Año: | 2013 |
| DOI: | http://dx.doi.org/10.1016/j.marpolbul.2013.11.016 |
| Título revista: | Marine Pollution Bulletin |
| Título revista abreviado: | Mar. Pollut. Bull. |
| ISSN: | 0025326X |
| CODEN: | MPNBA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0025326X_v_n_p_Machado |
Citas:
---------- APA ----------
Machado, W., Borrelli, N.L., Ferreira, T.O., Marques, A.G.B., Osterrieth, M. & Guizan, C. (2013) . Trace metal pyritization variability in response to mangrove soil aerobic and anaerobic oxidation processes. Marine Pollution Bulletin.http://dx.doi.org/10.1016/j.marpolbul.2013.11.016
---------- CHICAGO ----------
Machado, W., Borrelli, N.L., Ferreira, T.O., Marques, A.G.B., Osterrieth, M., Guizan, C. "Trace metal pyritization variability in response to mangrove soil aerobic and anaerobic oxidation processes" . Marine Pollution Bulletin (2013).http://dx.doi.org/10.1016/j.marpolbul.2013.11.016
---------- MLA ----------
Machado, W., Borrelli, N.L., Ferreira, T.O., Marques, A.G.B., Osterrieth, M., Guizan, C. "Trace metal pyritization variability in response to mangrove soil aerobic and anaerobic oxidation processes" . Marine Pollution Bulletin, 2013.http://dx.doi.org/10.1016/j.marpolbul.2013.11.016
---------- VANCOUVER ----------
Machado, W., Borrelli, N.L., Ferreira, T.O., Marques, A.G.B., Osterrieth, M., Guizan, C. Trace metal pyritization variability in response to mangrove soil aerobic and anaerobic oxidation processes. Mar. Pollut. Bull. 2013.http://dx.doi.org/10.1016/j.marpolbul.2013.11.016
