With reference to the tectonic deformation, consider the following sta...
The correct answer is option 'C' - Both 1 and 2
Explanation:
Tectonic deformation refers to the changes that occur within the Earth's crust due to tectonic forces. These forces are primarily driven by the movement of Earth's tectonic plates. Tectonic deformation can result in various geological phenomena, including folding of rocks and the formation of mountains.
Statement 1: It is the change that occurs within the Earth's crust due to tectonic forces.
This statement is correct. Tectonic deformation refers to the changes or modifications that occur in the Earth's crust as a result of tectonic forces. These forces can include compression, tension, and shear. These deformations are responsible for shaping the Earth's surface and creating geological features such as mountains, valleys, and faults.
Statement 2: It can lead to the folding of rocks where layers of rock are bent and deformed due to compressional forces.
This statement is also correct. One of the common outcomes of tectonic deformation is the folding of rocks. When tectonic forces exert compressional stress on layers of rock, they can cause the rocks to bend, fold, and deform. This folding can result in the formation of anticlines (upward folds) and synclines (downward folds). These folded rock structures can be seen in mountain ranges and are evidence of tectonic activity.
In summary, both statements are correct. Tectonic deformation refers to the changes that occur within the Earth's crust due to tectonic forces, and it can lead to the folding of rocks where layers of rock are bent and deformed due to compressional forces.
With reference to the tectonic deformation, consider the following sta...
Recently, a study done by the researchers has found an expanding area of active tectonic deformation in the northern plains of Haryana.
- 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.
- Tectonic activity at divergent plate boundaries can create rift zones and rift valleys.
- Tectonic deformation can lead to the folding of rocks, where layers of rock are bent and deformed due to compressional forces.
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.
Hence both statements are correct.