Mobility of rare earth elements in the system soils-plants-groundwaters: A case study of an arid area (Oman)

Khadija Semhi, Osman A E Abdalla, Salah Al Khirbash, Tabisam Khan, Salim Asaidi, Sardar Farooq

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12 Citations (Scopus)


Groundwater samples from six wells and various species of plants from soils developed on ophiolites were collected from an arid area (AlKhod area, Oman) and analyzed for trace elements including rare earth elements (REEs). The distribution patterns of REEs in plants indicated an enrichment in middle REEs (MREEs =Sm to Dy) and heavy REEs (HREEs =Ho to Lu), when they are normalized to the REE composition of the Post Archean Australian Shale (PAAS), with a significant negative anomaly in Ce and a positive anomaly in Eu. Compared to Oman ophiolites, the REEs in different species of plants are depleted in Ce and enriched in MREEs and slightly enriched in light REE (LREE =from La to Nd). Relative to PAAS, the distribution of REEs in groundwaters revealed similar patterns to the REE distribution in plants. The distribution patterns of REEs in plants relative to those in waters are nearly flat. These patterns suggest that the transfer of REEs from soil solutions to the groundwaters in Oman occurs without any significant fractionation.

Original languageEnglish
Pages (from-to)143-150
Number of pages8
JournalArabian Journal of Geosciences
Issue number2
Publication statusPublished - 2009



  • Fractionation
  • Oman
  • Ophiolites
  • Rare earth elements
  • Trace elements
  • Transfer

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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