Question

Which of the following is a fold with parallel limbs?

• A. Inverted fold
• B. Isoclinal fold
• C. Asymmetrical fold
• D. Reclined fold

Hint:

Isoclinal folds have limbs that are nearly parallel to each other.

Answer 1

The Correct Option is B

Concept:
Folds are bends or curves in rock layers caused by compressional forces. They are classified based on the geometry of their limbs and axial plane.

Step 1: Understand fold limbs.
The two sides of a fold are called limbs.

Step 2: Identify fold with parallel limbs.
In an isoclinal fold, the two limbs are nearly parallel to each other. \[ \text{Parallel limbs} \Rightarrow \text{Isoclinal fold} \]

Step 3: Final answer.
Thus, a fold with parallel limbs is an isoclinal fold. \[ \therefore \text{Correct Answer is (B)} \]