DOI: 10.1016/j.marpolbul.2017.06.030
Scopus记录号: 2-s2.0-85020661482
论文题名: Rare earth elements mobility processes in an AMD-affected estuary: Huelva Estuary (SW Spain)
作者: Lecomte K.L. ; Sarmiento A.M. ; Borrego J. ; Nieto J.M.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 121, 期: 2018-01-02 起始页码: 282
结束页码: 291
语种: 英语
英文关键词: Acid drainage
; Estuary
; Mixing process
; Rare earth elements
Scopus关键词: Dissolution
; Estuaries
; Exploratory geochemistry
; Extraction
; Minerals
; Mixing
; Rare earth elements
; Rare earths
; Salts
; Seawater
; Acid drainage
; Dissolved fraction
; Mixed solution
; Mixing process
; Residual phase
; Schwertmannite
; Sequential extraction
; Transition zones
; Alkalinity
; cerium
; dysprosium
; erbium
; europium
; ferric hydroxide
; ferric oxide
; gadolinium
; holmium
; lanthanide
; lutetium
; neodymium
; praseodymium
; samarium
; sea water
; sodium chloride
; terbium
; thulium
; ytterbium
; fresh water
; lanthanide
; acid mine drainage
; drainage network
; element mobility
; estuarine environment
; mixing
; rare earth element
; transition zone
; acid mine drainage
; Article
; concentration (parameters)
; controlled study
; crystallization
; estuary
; geochemistry
; mineralogy
; pH
; precipitation
; Spain
; water pollution
; environmental monitoring
; estuary
; water pollutant
; Andalucia
; Huelva Estuary
; Huelva [Andalucia]
; Spain
; Tinto River
; Environmental Monitoring
; Estuaries
; Fresh Water
; Metals, Rare Earth
; Seawater
; Spain
; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: 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. The Tinto River has > 11,000 μg L− 1 dissolved REE (pH = 1.66), whereas seawater only reaches 8.75 · 10− 2 μg L− 1 dissolved REE (pH = 7.87). REE-normalized patterns in “pH < 6 solutions” are parallel and show similarities, diminishing their concentration as pH increases. Sequential extraction performed on the generated precipitates of mixed solutions indicates that most REE are associated to the residual phase. In a second order, REE are associated with soluble salts at pH 3 and 3.5 whereas in sediments generated at pH 4 and 5, they are distributed in salts (1° extraction), poorly crystallized Fe-bearing minerals (schwertmannite, 3° extraction) and well crystallized Fe-bearing minerals (goethite - hematite, 4° extraction). Finally, precipitated REE are highest at pH 6 newly formed minerals with a release to solution in higher pH. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87535
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: CICTERRA CONICET-Universidad Nacional de Córdoba, Argentina; Dpto. Ciencias de la Tierra, Universidad de Huelva, Huelva, Spain; Research Center of Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
Recommended Citation:
Lecomte K.L.,Sarmiento A.M.,Borrego J.,et al. Rare earth elements mobility processes in an AMD-affected estuary: Huelva Estuary (SW Spain)[J]. Marine Pollution Bulletin,2017-01-01,121(2018-01-02)