Suture Zone of the Himalayas has become tectonically active.
- Posted By
10Pointer
- Categories
Disaster Management
- Published
27th Oct, 2020
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- Suture Zone: It is joining together of two fault zones. It is usually found in mountain ranges.
- The Himalayan Suture Zone, also called Indus Suture Zone or Indus Yarlung Tsangpo Suture Zone, is the zone of the collision between the Indian Plate and the Ladakh Batholith.
- The study conducted by Wadia Institute of Himalayan Geology says that the suture zone of the Himalayas has become tectonically active.
- The scientists have observed that the thrust is broken, sedimentary beds are tilted. Bedrocks are showing brittle deformation and the rivers are associated with the uplifted terraces.
- The scientists used the technique of Optically Stimulated Luminescence to make these observations.
- The findings say that the Suture Zone of the Himalayas has been active in the recent years of the earth history.
- The scientists have estimated it as 78,000 to 58,000 years old. According to them, the recent 2010 earthquake of low magnitude 4.0 in the village of Upshi was due to thrust rupture.
- Himalayas are made of three thrusts namely Main Central Thrust, Main Frontal Thrust and Main Boundary Thrust. According to the study, Main Frontal Thrusts are locked and the overall deformation is occurring in the Main Frontal Thrust.
- The study also says that there is a remote fault zone in the suture zone that is tectonically active.
