Abstract
The instrumental neutron activation analysis technique (INAA) was used in the qualitative and quantitative analysis of 48 geological samples from the Umm Al-Birak area in the Kingdom of Saudi Arabia. The samples were properly prepared together with their standards and simultaneously irradiated in a neutron flux of 2.4 ·1012 n·cm−2 s−1 in the reactor facilities of the National Tsing Hua University (THOR) in Taiwan. Gamma-spectra from the high resolution Ge(Li) detector were analyzed using the BRUTAl code. As a result of the analysis of the geological samples, 20 trace elements were identified qualitatively and quantitatively. These elements are: Co, Cr, Eu, Fe, Hf, K, La, Lu, Na, Rb, Sc, Sm, Ta, Tb, Th, U, Yb, Zn and Zr. The concentrations of these elements have been used in the investigations of the geochemistry of the Umm Al-Birak microgranite site using the BMDP computer code of the Ministry of Petroleum and Mineral Resources. This investigation showed that the high grade area is a differentiated rock that crystallized in a late stage of the Umm Al-Birak microgranite area.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
D. E. RAESIDE, Nucl. Medicine Technol. (1974) No. 2.
E. T. KUCERA, R. R. HINRICH, Radioanal. Chem., 32 (1976) 137.
W. S. LYON, Proc. Intern. Symp. Application of Technology of Ionic Radiation, Vol. 2, 1982, p. 833.
R. ZAGHLOUL, M. OBEID, R. HENKELMANN, Radiochem. Radioanal. Letters, 15 (1973) 363.
R. ZAGHLOUL, M. OBEID, R. HENKELMANN, Radiochem. Radioanal. Letters, 17 (1974) 17.
M. A. RAOOF, A. NAEEM, R. ZAGHLOUL, A. F. ABDUL-FATTAH, M. A. OBEID, J. Radioanal. Chem., 60 (1980) 273.
J. T. ROUTTI, S. G. PRUSSIN, Nucl. Instr. Methods, 72 (1969) 125.
N. J. JACKSON, C. J. DOUCH, H. BEDAWI, Geology and Resource Potential of the Umm Al-Birak Alkali Microgranite 23/39C, Open-File Report DGMR-OR-03-Ministry of Petroleum and Mineral Resources (Deputy Ministry for Mineral Resources), Jeddah, Kingdom of Saudi Arabia, 1982.
F. J. FLANAGAN, Geochim. Cosmochim. Acta, 37 (1973) 1189.
R. GUNNIK, H. B. LEVY, J. B. NIDAY, Identification and Determination of Gamma Emitter by Computer Analysis of Ge(Li) Spectra, UCID-15140, Presented at the American Chemical Society's Symp. on Nuclear Methods of Chemical Analysis, April 10–14, 1967.
S. KAHTANI, Isotope Identification of Saudi Arabian Rock Samples from Umm Al-Birak Using Neutron Activation Analysis, King Saud University, Saudi Arabia, 1984.
L. ENGELMANN, J. W. FRANE, R. I. JENNRICH, DMDP-77 Biomedical Computer Programs P-Series, University of California and W. DIXSON, M. BROWN, 1977.
J. I. W. WATTERSON, J. P. F. SELLSCHOP, J. Radioanal. Chem., 38 (1971) 301.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kahtani, S.A., Chou, H.P. & Obeid, M.A. Multielement NAA for the characterization of Saudi Arabian rocks. Journal of Radioanalytical and Nuclear Chemistry, Articles 109, 201–211 (1987). https://doi.org/10.1007/BF02117536
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02117536