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    • Keywords


      Radon; Thoron; NW Himalayas; LR-115 films.

    • Abstract


      The study described here is based on the measurements of soil gas radon–thoron concentrations performed at Dharamsala region of north-west (NW) Himalayas, India. The study area is tectonically and environmentally significant and shows the features of ductile shear zone due to the presence of distinct thrust planes. Solid state nuclear track detectors (LR-115 films) have been used for the soil gas radon–thoron monitoring. Twenty five radon–thoron discriminators with LR-115 films were installed in the borehole of about 50 cm in the study areas. The recorded radon concentration varies from 1593 to 13570 Bq/m3 with an average value of 5292 Bq/m3. The recorded thoron concentration varies from 223 to 2920 Bq/m3 with an average value of 901 Bq/m3. The anomalous value of radon–thoron has been observed near to the faults like main boundary thrust (MBT and MBT2) as well as neotectonic lineaments in the region.

    • Author Affiliations


      Gulshan Kumar1 Arvind Kumar2 Vivek Walia2 Jitender Kumar3 Vikash Gupta3 Tsanyao Frank Yang4 Surinder Singh5 Bikramjit Singh Bajwa5

      1. Department of Physics, Govt. College Sarkaghat, Mandi 175 024, Himachal Pradesh, India.
      2. National Center for Research on Earthquake Engineering, NARL, Taipei 106, Taiwan.
      3. Arni School of Basic Sciences, Department of Physics, Arni University, Indora, Kangra, India.
      4. Department of Geosciences, National Taiwan University, Taipei 106, Taiwan.
      5. Department of Physics, Guru Nanak Dev University, Amritsar 143 005, India.
    • Dates

  • Journal of Earth System Science | News

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      Posted on July 25, 2019

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