Question:
Given below are two statements:
Statement-I: Tectonic fabrics reveal the direction and magnitude of past stresses, allowing reconstruction of tectonic events.
Statement-II: Tectonites provide insights into the processes of mountain building, continental collision.
The correct answer is
Given below are two statements:
Statement-I: Tectonic fabrics reveal the direction and magnitude of past stresses, allowing reconstruction of tectonic events.
Statement-II: Tectonites provide insights into the processes of mountain building, continental collision.
The correct answer is
Statement-I: Tectonic fabrics reveal the direction and magnitude of past stresses, allowing reconstruction of tectonic events.
Statement-II: Tectonites provide insights into the processes of mountain building, continental collision.
The correct answer is
Show Hint
Tectonites are rocks whose internal fabric (foliation, lineation, deformation features) records the stresses and strains they experienced during tectonic activity.
Updated On: Jun 16, 2026
- Only statement-I is correct
- Only statement-II is correct
- Both statement-I and statement-II are correct
- Both statement-I and statement-II are incorrect
Show Solution
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The Correct Option is C
Solution and Explanation
Concept:
Tectonites are rocks whose internal fabric (foliation, lineation, deformation features) records the stresses and strains they experienced during tectonic activity. Studying these fabrics lets geologists reconstruct the deformation history of a region.
Step 1:
Statement-I says tectonic fabrics reveal the direction and magnitude of past stresses, allowing reconstruction of tectonic events. This is correct, because the orientation and intensity of fabric elements directly reflect the stress field that produced them.
Step 2:
Statement-II says tectonites give insight into mountain building and continental collision. This is also correct, since the deformation preserved in tectonites is produced during such large-scale orogenic and collisional processes.
Answer: Option (3) — Both statement-I and statement-II are correct.
Tectonites are rocks whose internal fabric (foliation, lineation, deformation features) records the stresses and strains they experienced during tectonic activity. Studying these fabrics lets geologists reconstruct the deformation history of a region.
Step 1:
Statement-I says tectonic fabrics reveal the direction and magnitude of past stresses, allowing reconstruction of tectonic events. This is correct, because the orientation and intensity of fabric elements directly reflect the stress field that produced them.
Step 2:
Statement-II says tectonites give insight into mountain building and continental collision. This is also correct, since the deformation preserved in tectonites is produced during such large-scale orogenic and collisional processes.
Answer: Option (3) — Both statement-I and statement-II are correct.
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