2004
DOI: 10.1016/j.watres.2004.04.056
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Controls on the distribution of rare earth elements in shallow groundwaters

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Cited by 123 publications
(105 citation statements)
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“…This sub-catchment has been monitored since 1991 to investigate the effects of intensive agriculture (corn cultures and livestock) on water quality. The hydrological, pedological and geochemical contexts are therefore well documented (Bourrié et al, 1999;Dia et al, 2000;Olivié-Lauquet et al, 2001;Gruau et al, 2004). The sampled uppermost soil horizon was defined as the organomineral horizon (Ah) of a planosol (according to the WRB international classification) which contained (wt%; anhydrous basis) OM (15%), clay (42%), quartz (30%) and Fe(III)-oxyhydroxides (3.5%) (Grybos et al, 2007).…”
Section: Site Description and Soil Samplingmentioning
confidence: 99%
“…This sub-catchment has been monitored since 1991 to investigate the effects of intensive agriculture (corn cultures and livestock) on water quality. The hydrological, pedological and geochemical contexts are therefore well documented (Bourrié et al, 1999;Dia et al, 2000;Olivié-Lauquet et al, 2001;Gruau et al, 2004). The sampled uppermost soil horizon was defined as the organomineral horizon (Ah) of a planosol (according to the WRB international classification) which contained (wt%; anhydrous basis) OM (15%), clay (42%), quartz (30%) and Fe(III)-oxyhydroxides (3.5%) (Grybos et al, 2007).…”
Section: Site Description and Soil Samplingmentioning
confidence: 99%
“…and Cr/Al 2 O 3 =17 (Gale et al, 2013). (Gruau et al, 2004) where both shallow, upland oxygenated groundwater and shallow wetland groundwater with a low redox potential were analyzed.…”
Section: Discussionmentioning
confidence: 99%
“…Relative to the Gunflint limestone samples, oxidized groundwater from modern upland areas (Gruau et al, 2004) has a very similar REE pattern, including significant Ce depletion and enrichment in the middle REEs (Figure 16). By contrast, groundwater from a nearby wetland, which has a lower redox potential then the upland groundwaters,lacked a Ce anomaly, but did exhibit the humped, middle REE enriched pattern (Gruau et al, 2004) (Figure 16).…”
Section: Rare Earth Elementsmentioning
confidence: 99%
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“…20 m above sea level (see Clément et al, 2002;Lefebvre et al, 2004;Gruau et al, 2004 for site details). Stream flow is characterized by a base-flow period from June to November (mean monthly discharge ≤ 40 L s ), and a high-flow period from December to May (> 40 L s ).…”
Section: Study Sitementioning
confidence: 99%