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Consider the following statements:
  1. The main central thrust separates the Greater Himalayas from the Trans - Himalayas.
  2. The main boundary fault separates the Greater Himalayas from the Lesser Himalayas.
  3. The Himalayan front fault separates Shiwalik from Northern plains of India.
Which of the statements given above is/are not correct?
  • a)
    1 and 2 only
  • b)
    2 and 3 only
  • c)
    1 and 3 only
  • d)
    1, 2 and 3
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements: The main central thrust separates t...
The correct answer is option 'A' (1 and 2 only). Let's analyze each statement to understand why.

1. The main central thrust separates the Greater Himalayas from the Trans-Himalayas.
This statement is correct. The Greater Himalayas and the Trans-Himalayas are two distinct regions within the Himalayan mountain range. The main central thrust is a major geological fault that runs along the northern boundary of the Greater Himalayas. It separates the Greater Himalayas, which are composed of highly folded and faulted rocks, from the Trans-Himalayas, which are characterized by less intense folding and faulting.

2. The main boundary fault separates the Greater Himalayas from the Lesser Himalayas.
This statement is incorrect. The main boundary fault, also known as the Main Frontal Thrust (MFT), is a major tectonic fault that runs parallel to the southern edge of the Himalayas. It separates the Lesser Himalayas from the Siwalik Range, not the Greater Himalayas. The Lesser Himalayas lie to the north of the main boundary fault, while the Greater Himalayas lie further north.

3. The Himalayan front fault separates the Siwalik from the Northern plains of India.
This statement is correct. The Himalayan front fault, also known as the Main Boundary Thrust (MBT), is a major geological fault that separates the Siwalik Range from the Northern plains of India. The Siwalik Range is a low-lying foothill region located at the southern edge of the Himalayas, while the Northern plains of India are a vast alluvial plain situated to the south of the Siwalik Range.

In conclusion, statement 1 and statement 3 are correct, while statement 2 is incorrect. Therefore, the correct answer is option 'A' (1 and 2 only).
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Community Answer
Consider the following statements: The main central thrust separates t...
Statement 1 is incorrect. Main Central Thrust (MCT) Zone:
  • This separates the Higher Himalayas in the north from lesser Himalayas in the south. It has played an important role in the tectonic history of these mountains.
  • Statement 2 is incorrect. Main Boundary Thrust (MBT) Zone:
    • It is a reverse fault of great dimensions which extends all the way from Assam to Punjab and serves to separate the outer Himalayas from the lesser Himalayas.
  • Statement 3 is correct. Himalayan Frontal Fault/Thrust (HFF/T):
  • It is a series of reverse faults that demarcates the boundary of the Shivalik of the Himalayan province from the alluvial expanse of the Indo-Gangetic plains.
 
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Consider the following statements: The main central thrust separates the Greater Himalayas from the Trans - Himalayas. The main boundary fault separates the Greater Himalayas from the Lesser Himalayas. The Himalayan front fault separates Shiwalik from Northern plains of India.Which of the statements given above is/are not correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?
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