Gamma-ray spectroscopic and PIXE analysis of selected samples from the phosphorite deposits of Northwestern Saudi Arabia

被引：0
|
作者：
A. Aksoy
M. Ahmed
W. S. A. Matter
Z. R. El-Naggar
机构：
[1] Center for Applied Physical Sciences,Research Institute
[2] King Fahd University of Petroleum and Minerals,Earth Sciences Department
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2002年 / 253卷
关键词：
Radiation; Physical Chemistry; Inorganic Chemistry; Radioactive Element; Elemental Composition;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Phosphorite deposits from northwestern Saudi Arabia were analyzed by natural radioactivity measurements to detect the presence of radioactive elements. PIXE was used to obtain an average elemental composition of these deposits. From the analysis of radiations from 238U, 232Th and 40K isotopes, the samples were found to contain U, Th and K in concentrations up to 130 ppm, 30 ppm and 2.5 wt%, respectively. PIXE showed the presence of a number of trace elements such as Ca, V, Cr, Fe, Ni, Cu, Zn, As, Sr, Y and U in concentrations ranging from a few ppm to several hundred ppm. The occurrence of these radioactive and non-radioactive elements are discussed for their geological significance in the phosphorite deposits.
引用
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页码：517 / 521
页数：4
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