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Estimation of Radioactive Heat Production from Airborne Spectral Gamma-ray Data of Gebel Duwi Area, Egypt

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概要 A map of radioactive heat production was constructed from airborne spectral gamma-ray data of Gebel Duwi area, Egypt. The study area possesses a range of radioactive heat production varying from 0.21 ...μ Wm^<-3> to 3.09 μWm^<-3>. Sedimentary rocks in the Gebel Duwi area have higher heat production values (0.25 μWm^<-3> to 3.09 μWm^<-3>) than the crustal average for sedimentary rocks. The average heat production of granitic rocks is below the crustal average value (1.48 μWm^<-3>) for the granites. The high values of heat production in the sedimentary rocks are mainly related to the relative increase of uranium content in the Duwi phosphate formation. The reduced heat production of the granitic rocks indicates that additional mantle components combine with the crustal radioactive heat production to the heat sources in the Gebel Duwi area.続きを見る

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登録日 2009.04.22
更新日 2017.01.23