دراسة التوزيع المكاني للنشاطية الإشعاعية الطبيعية في منطقة المفرق : دراسة جيوبيئية

Abstract EN

NaI-Scintillation counter was used to measure natural radio activity produced from the decay of the radio active materials (like Uranium, Thorium and Potassium 40) which are available in some sorts of rocks in different quantities like phosphate, marl and limestone which refer to the Upper Cretaceous and Tertiary in selected places in Mafraq Governorate.

Produced maps of radio activity were compared with the geology of the study area and its structures.

Spatial relationships were found especially with marl and phosphate rock units.

Structural faults showed no correlation with abnormal activities which indicate that they are inactive tectonically in the area.

Field measurements ensure that radioactivity content in the named rocks didn’t exceed the recommendations of the International Corporation for Protection from Radioactivity (ICRP).