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Influence of as(V) on precipitation and transformation of schwertmannite in acid mine drainage-impacted waters
(E. Schweizerbart'sche Verlagsbuchhandlung, 2019)
Iron-rich sediments commonly cover riverbeds affected by acid mine drainage (AMD). Initial precipitates are often dominated by schwertmannite, which has an exceptionally high capacity to sequester As and other toxic elements. ...
Rare Moss-Built Microterraces in a High-Altitude, Acid Mine Drainage-Polluted Stream (Cordillera Negra, Peru)
(Springer, 2015)
The Rio Santiago in the Cordillera Negra of Peru is severely contaminated by acid mine drainage in its headwaters. In a strongly acid stream, at about 3800 m above sea level (masl), microterraces were found with terrace ...
Observations and assessment of iron oxide and green rust nanoparticles in metal-polluted mine drainage within a steep redox gradient
(CSIRO, 2014)
In this study of iron- and silica-bearing nanoparticle and colloid aggregates in slightly acidic mine drainage, we combined bulk scale geochemistry techniques with detailed nanoscale analyses using high-resolution transmission ...
Hydrogeochemistry of an Acid River and Lake Related to an Active Volcano: The Case of Study. Agrio River—Copahue Volcano in Patagonia, Argentina
(Springer, 2022)
During the last three decades, Copahue volcano has been one of the most studied volcanoes in Argentina and Chile. Extensive research has been devoted to studying the geochemistry of rocks and fluids of the Copahue-Caviahue ...
Holocene ochreous lacustrine sediments within the Famatina Belt, NW Argentina: A natural case for fossil damming of an acid drainage system
(Pergamon-Elsevier Science Ltd, 2014-04)
A 44m-thick lacustrine succession of silty-clay banded ochres and subordinated sandstones, and conglomerates (known as the Corral Amarillo Formation) is superbly exposed within the Famatina Belt (Central Andes of Argentina) ...
Geochemical behavior of an acid drainage system: the case of the Amarillo River, Famatina (La Rioja, Argentina)
(Springer Heidelberg, 2017-01)
The Amarillo River (Famatina range, Argentina, ~29° S and ~67° W) is unusual because acid mine drainage (AMD) is superimposed on the previously existing acid rock drainage (ARD) scenario, as a Holocene paleolake sedimentary ...
Fixação de arsênio em resíduos da mineração de ouro: mecanismo e aplicação
(Universidade Federal de Minas GeraisUFMG, 2008-08-08)
The aim of the present work was to investigate arsenic association, mineralogy and potential mobility from industrial residues and synthetic metallic arsenates. Samples of industrial residues collected in a gold extraction ...
Rare earth elements mobility processes in an AMD-affected estuary: Huelva Estuary (SW Spain)
(Pergamon-Elsevier Science Ltd, 2017-05)
Huelva Estuary is a transition zone where REE-rich acidic waters interact with saline-alkaline seawater. This mixing process influences the geochemical and mineralogical characteristics of particulate and dissolved fractions. ...