Separation of Uranium Anomalies based on Geophysical Airborne Analysis by using Concentration-Area (C-A) Fractal Model,Mahneshan 1:50000 Sheet, NW IRAN
Afzal, P.; Zarifi, A.Z.; Khankandi, S.F.; et al.Wetherelt, A.; Yasrebi, A.B.
Date: 1 September 2012
Publisher
Technical Faculty Bor
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Abstract
The aim of this study is separation of uranium anomalies based on geophysical airborne data by utilizing the Concentration-Area (C-A) fractal model in Mahneshan 1:50000 sheet, NW Iran. Threshold values for the different anomalies of uranium were computed with the statistical method which shows that uranium anomaly commences from 282.1 ...
The aim of this study is separation of uranium anomalies based on geophysical airborne data by utilizing the Concentration-Area (C-A) fractal model in Mahneshan 1:50000 sheet, NW Iran. Threshold values for the different anomalies of uranium were computed with the statistical method which shows that uranium anomaly commences from 282.1 eppm. Furthermore, the C-A log-log plot of uranium shows existence of two stages of uranium enrichment in this area. The major enrichment for U starts from 331.1 eppm. High intensity anomalies (>562.3 eppm) in the area are located in the central and northern parts of the area. The comparison between achieved results and fault’s position patterns shows a positive correlation between uranium anomalies and the faults system in the area. However, mica-schists host high intensive uranium anomalies in the central part of the area. Results analyzed by the C–A fractal model certify that the interpreted anomalies based on the fractal model are accurate in comparison with the chemical analysis of lithogeochemical samples collected from the geophysical airborne anomalies.
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