Tectonic Deformation

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Overview:

Recently, a study done by the researchers has found an expanding area of active tectonic deformation in the northern plains of Haryana.

About Tectonic Deformation:

 

  • It refers to the changes and movements that occur within the Earth's crust due to tectonic forces.
  • The Earth's lithosphere, which is composed of the crust and the uppermost part of the mantle, is divided into several large and small tectonic plates.
  • These plates are in constant motion and interact with each other at their boundaries.

Key Findings:

  • Researchers suggested that tectonic activities may have played a role in the extinction of the Vedic Saraswati River that once flowed through the region.
  • The Piedmont zone of Haryana is actively deforming and could become a future seismic hazard zone.
  • The Piedmont zone (a transition zone between the rugged mountains and the relatively flat plains) between the Ghaggar and Yamuna River basins showed signs of active tectonic deformations.

 


Q1) What are fold mountains?

These are formed as a result of tectonic deformation. They are created when rocks undergo intense pressure and are subjected to compressional forces, typically at convergent plate boundaries. The compressional forces cause the rocks to fold and buckle, resulting in the formation of large-scale folds and uplifted mountain ranges.

Source: Our study shows a growing zone of active tectonic deformation in northern Haryana plains south of Himalayas