Abstract

The study of activity concentration of 232Th, 238U and 40K of rock samples from site one (S1L1–S1L11, 70m) and site two (S2L1–S2L9, 60m) boreholes in Dei-Dei and Kubwa was presented and the first time in the region to be compared. Activity concentrations were analysed using a high resolution co-axial HPGe gamma ray spectrometer system. The activity concentration ranges in site one borehole were from 45±1 to 98±6Bqkg−1 for 232Th, from 18±2 to 37±4Bqkg−1 for 238U and from 254 ±32Bqkg−1 to 1195 ±151Bqkg−1 for 40K. The activity concentration ranges in site two borehole were from 32±3 to 84±7Bqkg−1 for 232Th, from 15±2 to 52±5Bqkg−1 for 238U and from 119±15 to 705±94 for 40KBqkg−1. Significantly higher concentration of 232Th and 238U occurs in samples collected from S1L7, S1L11 and S2L1 layers. These zones experienced granitic intrusions produced by denudation and tectonism. 40K in rock samples of S1L4 and S2L4 activity concentrations is close; it could be that biotite granitic intrusion that is inferred as the formation in that layer reflects the same activity of potassium in rock's radioactivity measurement. The area requires further investigation of soil geochemistry and activity concentration of radionuclides in groundwater.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.