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The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a “U'' turn in its course to flow into India. This “U” turn is due to :
This “U” turn is due to Syntaxial bending of geologically young Himalayas
- a)Uplift of folded Himalayan series
- b)Syntaxial bending of geologically young Himalayas
- c)Geo-tectonic disturbance in the tertiary folded mountain chains
- d)Both (a) and (b) above
Correct answer is option 'B'. Can you explain this answer?
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The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and f...
The "U" turn of the Brahmaputra River in its course to flow into India is due to the syntaxial bending of the geologically young Himalayas.
The Himalayas are a relatively young mountain range, formed as a result of the ongoing collision between the Indian Plate and the Eurasian Plate. This collision has resulted in the uplift and folding of the Earth's crust, creating the high peaks and complex geological structures that characterize the region. One of these structures is the syntaxial bend, which is a sharp change in the orientation of a mountain range or river caused by the tectonic forces at work.
In the case of the Brahmaputra River, the syntaxial bend occurs near the Namcha Barwa peak in Tibet, where the river makes a dramatic "U" turn and changes its course from eastward to southward, eventually flowing into India. This bend is the result of the complex tectonic forces at work in the region, which have caused the river to follow the path of least resistance through the mountainous terrain.
So, the correct answer is: b) Syntaxial bending of geologically young Himalayas.
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The Himalayas are a relatively young mountain range, formed as a result of the ongoing collision between the Indian Plate and the Eurasian Plate. This collision has resulted in the uplift and folding of the Earth's crust, creating the high peaks and complex geological structures that characterize the region. One of these structures is the syntaxial bend, which is a sharp change in the orientation of a mountain range or river caused by the tectonic forces at work.
In the case of the Brahmaputra River, the syntaxial bend occurs near the Namcha Barwa peak in Tibet, where the river makes a dramatic "U" turn and changes its course from eastward to southward, eventually flowing into India. This bend is the result of the complex tectonic forces at work in the region, which have caused the river to follow the path of least resistance through the mountainous terrain.
So, the correct answer is: b) Syntaxial bending of geologically young Himalayas.
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The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and f...
Explanation:
The "U" turn in the course of the Brahmaputra river is due to Syntaxial bending of geologically young Himalayas. This geological phenomenon occurs as a result of the tectonic forces acting on the Earth's crust in the region. Here is a detailed explanation:
Geologically Young Himalayas:
- The Himalayas are a relatively young mountain range that is still actively growing due to the collision of the Indian and Eurasian tectonic plates.
- The young age of the Himalayas means that the rocks are still relatively soft and pliable, allowing for bending and folding under pressure.
Syntaxial Bending:
- Syntaxial bending refers to the bending of the Earth's crust in response to compressional forces.
- In the case of the Brahmaputra river, the tectonic forces acting on the young Himalayas have caused the crust to bend in such a way that the river makes a sharp turn in its course.
Impact on River Course:
- As the Brahmaputra approaches the Himalayas, it encounters the syntaxial bending of the mountain range.
- The bending of the crust forces the river to change its direction and flow parallel to the mountain range before eventually turning and flowing into India.
In conclusion, the "U" turn in the course of the Brahmaputra river is a result of the syntaxial bending of the geologically young Himalayas, which is a consequence of the tectonic forces shaping the region.
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The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a “U'' turn in its course to flow into India. This “U” turn is due to :This “U” turn is due to Syntaxial bending of geologically young Himalayas a) Uplift of folded Himalayan seriesb) Syntaxial bending of geologically young Himalayasc) Geo-tectonic disturbance in the tertiary folded mountain chainsd) Both (a) and (b) aboveCorrect answer is option 'B'. Can you explain this answer?
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The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a “U'' turn in its course to flow into India. This “U” turn is due to :This “U” turn is due to Syntaxial bending of geologically young Himalayas a) Uplift of folded Himalayan seriesb) Syntaxial bending of geologically young Himalayasc) Geo-tectonic disturbance in the tertiary folded mountain chainsd) Both (a) and (b) aboveCorrect answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a “U'' turn in its course to flow into India. This “U” turn is due to :This “U” turn is due to Syntaxial bending of geologically young Himalayas a) Uplift of folded Himalayan seriesb) Syntaxial bending of geologically young Himalayasc) Geo-tectonic disturbance in the tertiary folded mountain chainsd) Both (a) and (b) aboveCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a “U'' turn in its course to flow into India. This “U” turn is due to :This “U” turn is due to Syntaxial bending of geologically young Himalayas a) Uplift of folded Himalayan seriesb) Syntaxial bending of geologically young Himalayasc) Geo-tectonic disturbance in the tertiary folded mountain chainsd) Both (a) and (b) aboveCorrect answer is option 'B'. Can you explain this answer?.
The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a “U'' turn in its course to flow into India. This “U” turn is due to :This “U” turn is due to Syntaxial bending of geologically young Himalayas a) Uplift of folded Himalayan seriesb) Syntaxial bending of geologically young Himalayasc) Geo-tectonic disturbance in the tertiary folded mountain chainsd) Both (a) and (b) aboveCorrect answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a “U'' turn in its course to flow into India. This “U” turn is due to :This “U” turn is due to Syntaxial bending of geologically young Himalayas a) Uplift of folded Himalayan seriesb) Syntaxial bending of geologically young Himalayasc) Geo-tectonic disturbance in the tertiary folded mountain chainsd) Both (a) and (b) aboveCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a “U'' turn in its course to flow into India. This “U” turn is due to :This “U” turn is due to Syntaxial bending of geologically young Himalayas a) Uplift of folded Himalayan seriesb) Syntaxial bending of geologically young Himalayasc) Geo-tectonic disturbance in the tertiary folded mountain chainsd) Both (a) and (b) aboveCorrect answer is option 'B'. Can you explain this answer?.
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