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https://hdl.handle.net/1822/45642
Título: | Magnesium and aluminum sulfates in salt efflorescences from acid mine drainage in the Iberian Pyrite Belt (SW Spain) |
Autor(es): | Valente, Teresa Maria Fernandes Grande, Jose António De la Torre, M. L. |
Palavras-chave: | Salt efflorescences Soluble salts Magnesium and aluminum sulfates Mineral assemblage |
Data: | 2016 |
Editora: | Tu Bergakademie Freiberg, Inst Mining & Special Civil Eng |
Resumo(s): | The current study is focused on AMD-precipitates that compose the typical magnesium and aluminum sulfate assemblages in the Spanish sector of the Iberian Pyrite Belt (SW Spain). The main objectives are identify and describe the composition, morphology and paragenetic relationships of these sulfate phases. From the methodological pint of view, sampling procedure covered the entire metallogenetic province, including five selected representative mines and eight river basins, which are the main receptors of the acid mine drainage discharges. The mineralogical analyses were performed by X-Ray diffraction and electron microscopy. The obtained results showed the extraordinary abundance of aluminum sulfates with acicular habit, from the series pickeringite-apjhonite-halotrichite. They form typical assemblages with other aluminum sulfates, such as alunogen and tamarugite, and with the Mg sulfates: epsomite and hexahydrite. Moreover, the paragenetic relationships indicate the late occurrence of acicular Alsulfates from the halotrichite group. |
Tipo: | Artigo em ata de conferência |
Descrição: | Proceedings IMWA 2016, Freiberg/Germany | Drebenstedt, Carsten, Paul, Michael (eds.) | Mining Meets Water – Conflicts and Solutions. |
URI: | https://hdl.handle.net/1822/45642 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CCT - Comunicações/Communications CIG-R - Comunicações |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Magnesium and aluminum sulfates in salt efflorescences from acid mine drainage in the Iberian Pyrite Belt (SW Spain).pdf | 1,91 MB | Adobe PDF | Ver/Abrir |