Distribution of rare earth elements in an alluvial aquifer affected by acid mine drainage: the Guadiamar aquifer (SW Spain)

Álvarez, Manuel Olías; Cerón, J. C.; Fernández, I.; Rosa, J. de la

doi:10.1016/j.envpol.2004.10.014

Cited by 103 publications

(39 citation statements)

References 27 publications

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“…Accordingly, the pH of samples 2-5 appeared slightly acidic, ranging between 5.96 and 6.99. These findings are indicative of acid mine drainage originating from the mine's abandoned tailings basins (Olías et al 2005;Chon and Hwang 2000). Samples 3 and 4 where particularly enriched in Mn, Zn and Cd.…”

Section: Resultsmentioning

confidence: 79%

Heavy Metal Pollution Associated with an Abandoned Lead–Zinc Mine in the Kirki Region, NE Greece

Nikolaidis

Zafiriadis

Mathioudakis

et al. 2010

Bull Environ Contam Toxicol

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The ''Agios Philippos'' mine in the Kirki region (NE Greece) has been abandoned in 1998 after half a century of ore exploration without a reclamation or remediation plan. This article aims at elucidating the potential environmental risks associated with this site by quantifying pollution in tailing basins, stream waters, stream sediments and agricultural fields. Concentrations of heavy metals in the abandoned mine tailings reached 12,567 mg/kg for Pb, 22,292 mg/kg for Zn, 174 mg/kg for Cd and 241 mg/kg for As. The geoaccumulation index and enrichment factor for these metals were indicative of extremely high contamination (I geo [ 5) and extremely high enrichment (EF [ 40), respectively. Stream waters in the proximity of the mine had an acidic pH equal to 5.96 and a high sulfate content (SO 4 -2 = 545.5 mg/L), whereas concentrations of Mn, Zn and Cd reached 2,399 lg/L, 7,681 lg/L and 11.2 lg/L. High I geo and EF values for Cd, Zn and As in stream sediments indicates that surface water pollution has a historic background, which is typically associated with acid mine drainage. Agricultural fields in the proximity of the mine exhibited high I geo and EF values, which were in decreasing order Cd [ Pb [ Zn [ As. These findings urge for an immediate remediation action of the afflicted area.

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Section: Resultsmentioning

confidence: 79%

Heavy Metal Pollution Associated with an Abandoned Lead–Zinc Mine in the Kirki Region, NE Greece

Nikolaidis

Zafiriadis

Mathioudakis

et al. 2010

Bull Environ Contam Toxicol

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“…At a weakly acidic pH, mo bil ity of REE may sig nif i cantly increase due to for ma tion of the sta ble sul phate ligand, mainly REESO 4 + and REE(SO 4 ) 2 -, en hanc ing the re lease of REE from rocks (Sholkovitz, 1995;Gieré, 1996;Wood, 2003;Zhao et al, 2007;Migdisov et al, 2016). Ad di tion ally, the acid i fi ca tion may have pro moted dis so lu tion of car bon ates and hy dro ly sis of clay min er als at acidic pH, lib er at ing ad di tional amounts of REE (Olias et al, 2005). For these rea sons, it is be lieved that low-pH so lu tions dom i nated by sul phate lig ands, such as those gen erated by ox i da tion pro cesses, en hanced leach ing of REE from the al tered rocks.…”

Section: Interpretation and Discussionmentioning

confidence: 99%

“…Be cause the flow of min er al iz ing so lu tions took place within the car bon ate-rich rocks of the Kupferschiefer se ries, sub se quent fluid-rock ex change re ac tions (in clud ing dis so lu tion of car bon ates) neu tral ized acid ity of the so lu tion (cf. Worrall and Pearson, 2001;Verplanck et al, 2004;Olias et al, 2005;Migdisov et al, 2016). Af ter the re lease of REE into so lu tion, as acidic flu ids were buf fered to a higher pH by car bon ates, re active Fe-oxyhydroxides scav enged REE due to destabilization of REE sul phate lig ands, re mov ing them from ox i diz ing flu ids.…”

Section: Interpretation and Discussionmentioning

confidence: 99%

“…It was clearly dem onstrated (e.g., Bau, 1999;Worrall and Pearson, 2001;Protano and Riccobono, 2002;Verplanck et al, 2004;Olias et al, 2005;Welch et al, 2009;Ma et al, 2011) that metal sul phide-con taining rocks af fected by acidic wash ing tend to be de pleted in MREE whereas flu ids re sult ing from ox i da tive al ter ation pres ent MREE-en riched sig na tures and that fer ric oxyhydroxides played a cru cial role in both the REE up take and re moval. As pre vi ously sug gested, de po si tion of MREE, like REE, oc curred due to destabilization of REE-sul phate com plexes through pH neu tral iza tion by car bon ates, or through pro cesses that re duce the sul phur, and trans form it into spe cies, such as thio sulphates, sulphides, or na tive sul phur (Migdisov et al, 2016).…”

Section: Interpretation and Discussionmentioning

confidence: 99%

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Controls on the distribution of rare earth elements in the Kupferschiefer series of SW Poland

Oszczepalski¹,

Chmielewski²,

Mikulski³

2016

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1 Pol ish Geo log i cal In sti tute -Na tional Re search In sti tute, Rakowiecka 4, 00-975 Warszawa, Po land Oszczepalski, S., Chmielewski, A., Mikulski, S.Z., 2016. Con trols on the dis tri bu tion of rare earth el e ments in the Kupferschiefer se ries of SW Po land. Geo log i cal Quar terly, 60 (4): 811-826, doi: 10.7306/gq.1325 This study deals with the spa tial dis tri bu tion and the PAAS-nor mal ized pat terns of rare earth el e ments (REE) stud ied by ICP-MS in the Kupferschiefer se ries of SW Po land. The most char ac ter is tic fea ture is a pro gres sive en rich ment in REE content (in clud ing Y and Sc) out ward from the rocks with py ritic and Pb-Zn min er al isa tion, across the rocks with cop per min er alisa tion, to wards the ox i dized (Rote Fäule) ar eas. The same trend can also be ob served with re spect to LREE, MREE and HREE. Whereas REE dis tri bu tion di a grams for shales with py rite and Pb-Zn min er al isa tion are al most flat, di a grams for shales with he ma tite and cop per min er al isa tion are con vex-up ward and the stron gest con vex ity is at trib uted to the tran si tion from hematitic al ter ation to cop per-rich rocks. REE dis tri bu tion di a grams nor mal ized to PAAS show strong MREE en richment rel a tive to LREE and HREE, which is typ i cally the high est in the he ma tite zone, lower in shale with cop per min er al isation, and the low est in shales with Pb-Zn and py rite min er al isa tion. The sys tem atic in crease in the con cen tra tion of REE to wards the Rote Fäule, and the strong en rich ment in MREE in the tran si tion zone are in dic a tive of vari able in ten sity of leaching and for ma tion of the REE en rich ments (in clud ing MREE) by MREE>HREE>LREE flu ids, as ev i denced by the MREE-enriched sig na tures. Over print ing of sec ond ary en rich ments over the orig i nal REE pat tern due to re dis tri bu tion along the path ways of ex pand ing flu ids are pos tu lated to ac count for the ap par ent dif fer ences in the dis tri bu tion and con cen tra tion of REE (in clud ing the MREE-en riched trend) be tween the ox i dized rocks, cop per-bear ing rocks, and re duced lithologies bar ren in cop per.

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“…REEs are mined from a great variety of ores, even in very small amounts [30,31]. In accordance with the description, the investigated area includes three highly exploited ore deposits: the Sasa Pb-Zn mine, with flotation tailings discharged in the Kamenica river environs, the Zletovo Pb-Zn mine, with flotation tailings discharged in the Zletovska Reka river, and the Bučim Cu-mine, with flotation tailings discharged in the Lakavica river.…”

Section: Characterization Of the Investigated Areamentioning

confidence: 91%

Lithological distribution of rare earth elements in automorphic and alluvial soils in the Bregalnica river basin

Balabanova

Stafilov

Šajn

2015

Maced. J. Chem. Chem. Eng.

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The present study gives an overview of the rare earth elements (REEs) distribution in automorphic and alluvial soil (top and sub-soil samples) in the environs of Bregalnica river. The element contents were determined using inductively coupled plasma with mass spectrometry. The content of the light rare earth elements (LREEs) in the whole investigated area ranges from 8.6 to 225 mg kg -1 , while the content of the heavy rare earth elements (HREEs) ranges from 0.92 to 33.7 mg kg -1 . The distribution of the LREEs (La, Ce, Pr, Nd, Pm, Sm, Eu and Gd) is predominantly related to the Quaternary terraces and the Paleogene flysch. The anthropogenic activities that occur in the Pb-Zn surroundings and the Cu mineralization in the investigated area significantly influence the lithological distribution of this geochemical association of elements. On the other hand, the distribution of the HREEs (Tb, Dy, Ho, Er, Th, Yb and Lu) presents a typical geochemical association in the area of the Bregalnica river basin.Keywords: soil; rare earth elements; spatial distribution; ICP-MS; Bregalnica river basin ЛИТОЛОШКА РАСПРЕДЕЛБА НА РЕТКИ ЗЕМЈЕНИ ЕЛЕМЕНТИ ВО АВТОМОРФНИ И АЛУВИЈАЛНИ ПОЧВИ ОД СЛИВОТ НА РЕКАТА БРЕГАЛНИЦАОвој труд дава преглед на дистрибуцијата на ретките земјени елементи (REEs) во автоморфни и алувијални почви (површински и длабински примероци) од сливот на реката Брегалница. Содржината на елементите е одредувана со примена на индуктивно спрегната плазма со масена спектрометрија. Содржината на лесните ретки земјени елементи (LREEs) за целото испитувано подрачје е во областа од 8,6-225 mg kg -1 , додека вкупната сума на тешките ретки земјени елементи (ΣHREEs) е во областа од 0,92-33,7 mg kg -1 . Дистрибуцијата на LREEs (La, Ce, Pr, Nd, Pm, Sm, Eu and Gd) е поврзана со квартарните тераси и палеогениот флиш. Антропогените активности, кои се одвиваат во околината на минерализацијата на Pb-Zn и Cu во испитуваното подрачје, значајно влијаат на литогената дистрибуција на оваа геохемиска асоцијација на елементите. Од друга страна, пак, дистрибуцијата на тешките ретки земјени елементи (HREEsTb, Dy, Ho, Er, Th, Yb and Lu) претставува типична геохемиска асоцијација во подрачјето на сливот на реката Брегалница.Клучни зборови: почва; ретки земјени елементи; просторна дистрибуција; ICP-MS; слив на реката Брегалница  Dedicated to Academician Gligor Jovanovski on the occasion of his 70 th birthday.

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Distribution of rare earth elements in an alluvial aquifer affected by acid mine drainage: the Guadiamar aquifer (SW Spain)

Cited by 103 publications

References 27 publications

Heavy Metal Pollution Associated with an Abandoned Lead–Zinc Mine in the Kirki Region, NE Greece

Heavy Metal Pollution Associated with an Abandoned Lead–Zinc Mine in the Kirki Region, NE Greece

Controls on the distribution of rare earth elements in the Kupferschiefer series of SW Poland

Lithological distribution of rare earth elements in automorphic and alluvial soils in the Bregalnica river basin

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