SURFACE RADIOGENIC HEAT DISTRIBUTION IN OBIO-AKPOR AREA OF RIVERS STATE, NIGERIA

Authors

  • J.A. Adegoke

Keywords:

Radiogenic, heat, gamma-ray, spectrometer, activity concentration, soil.

Abstract

Radiogenic heat production rates of soil samples from some selected sites in Obio-Akpor area of Rivers state, Nigeria are presented. Activity concentration of naturally occurring radionuclides: 40K, 238U and 232Th in samples were determined using a NaI(Tl) gamma-ray spectrometer. Radiogenic heat production rates calculated from activity concentrations ranged from 0.2 to 11.2 pW/kg for40K, BDL to 178.2 pW/kg for 238U, and BDL to 958.8 pW/kg for 232Th. Total heat production varied from 102.1 to 1086.0 pW/kg. As much as 90% of total heat production is from 232Th, while 40K and 238U contribute 1% and 9% respectively. Heat production is higher than that of a region in the south-western part of the country but lower than that from the northern part.

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Published

2021-12-05

How to Cite

Adegoke, . J. (2021). SURFACE RADIOGENIC HEAT DISTRIBUTION IN OBIO-AKPOR AREA OF RIVERS STATE, NIGERIA. JOURNAL OF SCIENCE RESEARCH, 13(1), 8. Retrieved from http://jsribadan.ng/index.php/ojs/article/view/52