Mineralogy and geochemistry affecting arsenic solubility in sediment profiles from the shallow basin-fill aquifer of Cache Valley Basin, Utah

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• 作者：Xianyu Meng^a ; ^b ; ^{xianyu.meng@aggiemail.usu.edu} ; R. Ryan Dupont^a ; ^b ; ^{ryan.dupont@usu.edu} ; Darwin L. Sorensen^a ; ^{Darwin.sorensen@usu.edu} ; Astrid R. Jacobson^c ; ^{astrid.jacobson@usu.edu} ; Joan E. McLean^a ; ^b ; ^{joan.mclean@usu.edu}
• 关键词：Arsenic ; Carbonates ; Semi-arid ; Geochemistry ; Sediment profile ; Redox stratification
• 刊名：Applied Geochemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：77
• 期：Complete
• 页码：126-141
• 全文大小：3608 K
• 卷排序：77

文摘

We examined two sediment cores (0–6 m bgs) emphasizing As solubility and mineralogy. As content was elevated in the sediment and pore water throughout the cores. Mineral association of As(III) and As(V) in the sediment cores changes with depth. As solubility was the highest in the sediments that are rich in carbonates. As occurs in groundwater above the MCL in the basin-fill aquifers of southwest US.