Fault Delineation Studies in NW-Himalayas, Himachal Pradesh, India– A review in correlation to radon-thoron anomalies

IJEP 44(4): 352-359 : Vol. 44 Issue. 4 (April 2024)

Gulshan Kumar1*, Arvind Kumar2, Mukesh Kumar3 and Punam Kumari3

1. Govt. Degree College, Department of Physics, Baldwara, Mandi – 175 033, Himachal Pradesh, India
2. National Center for Research on Earthquake Engineering, Taipei 106, Taiwan
3. Lovely Professional University, Department of Physics, Phagwara – 144 411, Punjab, India
4. BTC DAV College Banikhet, Department of Physics, Chamba – 176 303, Himachal Pradesh, India


The present review work reported the correlations of radon-thoron anomalies to the fault delineation in northwest Himalaya, Himachal Pradesh, India. Many researchers monitored the radon, thoron and various other gases near different fault systems of this region using numerous techniques and reported anomalous behaviour especially elevated levels of these gases near active fault and thrust systems of the area. Some researchers also correlated the other geothermal process through path of leakage of these gases from deep routed location in surface of earth. Many have reported a positive relation between concentration of these gases with radon-thoron fluxes and their exhalation rates alongwith radium contents. In this work, their techniques and findings were elaborated to set correlation between anomalies in the concentration levels of gases and faults/thrust systems.


Main boundary thrust, Main central thrust, RAD7


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