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dc.contributor.authorMoberly, James G.
dc.contributor.authorBorch, Thomas
dc.contributor.authorSani, Rajesh K.
dc.contributor.authorSpycher, Nicolas
dc.contributor.authorŞengör, S. Sevinç
dc.contributor.authorGinn, Timothy R.
dc.contributor.authorPeyton, Brent M.
dc.identifier.citationMoberly JG, Borch T, Sani RK, Spycher NF, Sengor SS, Ginn TR, Peyton BM, "Heavy metal-mineral associations in Coeur d'Alene River sediments: A synchrotron-based analysis," Water Air Soil Pollut 2009 201(1-4):195-208en_US
dc.description.abstractNearly a century of mining activities upstream have contaminated Lake Coeur d’Alene and its tributaries with Pb, Zn, and other heavy metals. Heavy metal concentrations in sediments of the Coeur d’Alene watershed have been shown to be inversely proportional to the sediment size fraction; thus, analysis on a very small scale is essential to determine the mobility and stability of heavy metals in this environment. Micron-scale synchrotron-based methods were used to determine the association of heavy metals with solid phases in sediments of the Coeur d’Alene River. Bulk X-ray diffraction (XRD), extended X-ray absorption fine structure spectroscopy, and synchrotron-based microfocused XRD combined with microfocused X-ray fluorescence mapping indicate the presence of crystalline Pb- and Zn-bearing mineral phases of dundasite [Pb2Al4(CO3)4(OH)8·3H2O], coronadite [PbMn8O16], stolzite [PbWO4], mattheddleite [Pb10(SiO4)3.5(SO4)2Cl2], bindheimite [Pb2Sb2O7], and smithsonite [ZnCO3]. Likely phases for Zn and Pb adsorption were ferrihydrite, diaspore [AlO(OH)], manganite [Mn(III)O(OH)], muscovite [KAl2(Si3Al)O10(OH,F)2], biotite [K(Fe,Mg)3AlSi3O10(F,OH)2], and montmorillonite [Na0.3(Al,Mg)2Si4O10(OH)2·8H2O]. The large predominance of Fe and Mn (hydr)oxides over other sorbent minerals suggests that the metal sorption behavior is dominated by these (hydr)oxide phases.en_US
dc.titleHeavy metal-mineral associations in Coeur d'Alene River sediments: A synchrotron-based analysisen_US
mus.citation.journaltitleWater, Air, and Soil Pollutionen_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentChemical Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US
mus.relation.researchgroupThermal Biology Institute.en_US
mus.contributor.orcidPeyton, Brent M.|0000-0003-0033-0651en_US
mus.contributor.orcidMoberly, James G.|0000-0003-0950-0952en_US

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