With reference to Block Mountains, consider the following statements: 1. They are formed when large areas are broken and displaced horizontally. 2. The Rhine valley is an example of a Block Mountain system. 3. The Vosges mountain is an example of a Block Mountain system. Which of the statements given above is/are correct?

Correct Option The correct option is (c). Explanation Block Mountains are landforms created by the faulting of the Earth's crust. This process involves the breaking and movement of crustal blocks due to tensional or compressional forces generated by endogenic processes. Statement-wise Analysis - Statement 1 is Incorrect. Block Mountains are formed when large areas of the Earth's crust are broken and displaced vertically, not horizontally. The uplifted blocks are termed as horsts, while the lowered blocks are termed as grabens. Horizontal displacement typically results in fold mountains (through compression) or strike-slip faults. - Statement 2 is Correct. The Rhine Valley is a classic example of a Graben or rift valley, which is an integral component of a Block Mountain system. It is formed by the subsidence of the crustal block between two parallel faults. - Statement 3 is Correct. The Vosges mountain range in Europe is a prominent example of a Block Mountain (Horst). It stands as an uplifted block adjacent to the Rhine rift valley. Key Takeaway Block Mountains (Horsts) and Rift Valleys (Grabens) are formed by vertical displacement along faults. Classic examples include the Vosges and Black Forest mountains (Horsts) separated by the Rhine Valley (Graben).

With reference to Block Mountains,… - NCERT Class 6 Geography MCQ

NCERT Class 6 Geography — Chapter 3: Major Landforms of the Earth

mcqhard

With reference to Block Mountains, consider the following statements:

They are formed when large areas are broken and displaced horizontally.
The Rhine valley is an example of a Block Mountain system.
The Vosges mountain is an example of a Block Mountain system.

Which of the statements given above is/are correct?

NCERT textbook question

From NCERT The Earth Our Habitat · Page 3

Options

A1 and 2 only
B2 only
C2 and 3 only
D1, 2 and 3

Did you get this right?

Solution

Correct Option

The correct option is (c).

Explanation

Block Mountains are landforms created by the faulting of the Earth's crust. This process involves the breaking and movement of crustal blocks due to tensional or compressional forces generated by endogenic processes.

Statement-wise Analysis

Statement 1 is Incorrect. Block Mountains are formed when large areas of the Earth's crust are broken and displaced vertically, not horizontally. The uplifted blocks are termed as horsts, while the lowered blocks are termed as grabens. Horizontal displacement typically results in fold mountains (through compression) or strike-slip faults.
Statement 2 is Correct. The Rhine Valley is a classic example of a Graben or rift valley, which is an integral component of a Block Mountain system. It is formed by the subsidence of the crustal block between two parallel faults.
Statement 3 is Correct. The Vosges mountain range in Europe is a prominent example of a Block Mountain (Horst). It stands as an uplifted block adjacent to the Rhine rift valley.

Key Takeaway

Block Mountains (Horsts) and Rift Valleys (Grabens) are formed by vertical displacement along faults. Classic examples include the Vosges and Black Forest mountains (Horsts) separated by the Rhine Valley (Graben).

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