Natural radioactivity in rocks and soil along Manali-Leh highway: comparative analysis
摘要
This study compares the concentration of naturally occurring radionuclides in rocks and soil samples taken along the Manali-Leh highway from the Higher and Tethyn Himalayas. The activity of 226Ra, 232Th, and 40K in soil and rock samples was measured using an HPGe detector. The activity of these primordial radionuclides in soil and rocks differs considerably due to variations in geological and tectonic formations in the region. After a particular location, a significant decrease in radioactivity concentration in rocks and soil was also observed.