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Mineralogical control of rare earth elements in acid sulfate soils

Welch, Susan; Christy, Andrew; Isaacson, Lloyd; Kirste, Dirk

Description

Major, trace and rare earth element concentrations were measured in porewater, surface water and sediments at an acid sulfate soil site. The concentrations of La and Ce in porewater are up to 1-3 ppm. There is a strong correlation between REE concentration and acidity, except that the maximum concentrations were consistently found below the horizon of maximum acidity, associated with an increase in pH (to ca. 4) and change in mineralogy from jarosite-dominated to goethite-dominated mottles....[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/53589
Source: Geochimica et Cosmochimica Acta
DOI: 10.1016/j.gca.2008.10.017

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