Journal of Environmental Hazards

Medhat M El Mansi

Publications

• Research Article
  Natural Radionuclides Levels and their Geochemical Characteristics of Abu Dabbab Albite Granite Mining Area, Central Nubian Shield of Egypt
  Author(s): Mohamed Th. S Heikal, Mohamed Abd El Monsef, Saleh R Goma, Medhat M El Mansi and Gulcan TopMohamed Th. S Heikal, Mohamed Abd El Monsef, Saleh R Goma, Medhat M El Mansi and Gulcan Top
  
  The present work addressed the natural radionuclides distribution and their geochemical characteristics for 21 albite granite samples, including surface, adit and subsurface core samples from Gebel Abu Dabbab rare metal-bearing albite granite (650-550 Ma). The measurements are provided by γ-ray spectroscopic analysis, including portable RS-230 model hand-detector and High Purity Germanium (HPGe) spectrometry. Chemical analysis using ICP-OES & ICP-MS have been carried out to determine the concentrations of major oxides and trace elements including U, Th (ppm) and 40K % for the studied rocks. With respect to the field spectrometric measurements, the average radionuclide concentrations for point samples of eU, eTh (ppm) and K% were 10.36, 19.46 and 3.48 respectively. Gamma ray HPGe detector indicates that the average specific activities of 238U, 232Th and 40K were 66.75, 29.97 .. Read More»
  

  Abstract PDF