Rare earth elements determination and distribution patterns in surface marine sediments of the South China Sea by INAA,Malaysia |
| |
Authors: | Kh Rezaee E B Saion A Khalik Wood M R Abdi |
| |
Institution: | (1) Physics Department, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia;(2) Instrumental Technology Division, Malaysian Institute for Nuclear Technology Research (MINT), Bangi, 43000 Kajang, Selangor, Malaysia;(3) Department of Physics, Faculty of Science, University of Isfahan, Isfahan, 81747-73441, Iran |
| |
Abstract: | Results obtained from the analysis of sediments surface samples taken from rivers mouth and polluted marine environment were
analyzed for REE contents to determine the concentrations of La, Ce, Sm, Eu, Tb, Dy, Lu and Yb using instrumental neutron
activation analysis. Thirty surface samples were collected from ten sites in the coastal marine sediments of the South China
Sea along 957 km stretch of the east coast of Peninsular Malaysia. The samples prepared in the powdered form before irradiating
them in a neutron flux of ~4 × 1012 n cm−2 s−1 at 750 kW power using the TRIGA Mark II research reactor at Malaysian Institute for Nuclear Technology (MINT). Results of
the total concentration are used to establish baseline data in environmental pollution assessment and to develop the correlations
between the Ce/Ce* anomalies and the distribution patterns of some the light rare earth elements (LREEs) and the heavy rare
earth elements (HREEs). The Chondrite-normalized REE pattern from each site examined and used to explain the sedimentation
patterns by anthropogenic activities and by natural processes such as shoreline erosion, weathering deposits. Shale-normalized
(NASC) patterns suggest enrichment of LREEs relative to the HREEs with a positive Ce/Ce* anomaly. Validation of the used method
was done using a Soil-7 SRM. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|