Preliminary Studies on Geological Fault Location Using Solid State Nuclear Track Detection

A. B. Asumadu-Sakyi ； J. J. Fletcher ； O. C. Oppon ； F. K. Quashie ； D. A. Wordson ； C. A. Adjei ； E. O. Amartey ； E. O. Darko ； Paulina Amponsah

《Research Journal of Environmental and Earth Sciences》 3卷1期 (2011/01) Pp. 24-31

並列摘要

In this study, alpha track detectors have been used to develop a methodology to locate fault lines in Accra, Ghana. Alpha track (LR-115 type II) detectors were used for the soil radon gas measurement in forty two (42) sample pits on 70 m × 100 m of land behind National Radioactive Waste Management Centre (NRWMC), Ghana Atomic Energy Commission (GAEC) and fifteen (15) sample pits on about 300 m × 200 m of land at Dunkonah. Comparison method for the determination of uranium content of the soil with track-etch detectors was used in both studied areas. At Dunkonah, the average soil radon gas concentrations calculated ranged from 10.2±0.5 to 23.0±0.7 kBq/m^3 with seven (7) sample pits having very high concentration levels. The average soil radon gas concentrations obtained at NRWMC, GAEC ranged from 6.4±0.4 to 27.5±0.8 kBq/m^3 with 20 sample pits having very high concentration levels. The area of high soil radon gas concentration at NRWMC coincided with the fault lines discovered by G.S.D.

並列關鍵字

Alpha track (LR-115 type II) detector ； fault lines ； Ghana ； radon ； radium ； soil ； uranium