Find the CORRECT statement out of the following.
Show Hint
- Convolute laminae form by desiccation.
- Load cast is an erosional structure.
- Prod mark is found at the bottom of a bed.
- Wave ripple occurs at the top of a turbidite deposit.
The Correct Option is D
Solution and Explanation
- Convolute laminae: Form due to soft-sediment deformation, not desiccation.
- Load casts: Depositional structures caused by density instability, not erosion.
- Prod marks: Tool marks produced at the base of beds due to objects dragged or stuck in moving sediment.
- Wave ripples: Occur at the top of shallow-water deposits, not turbidites (which show graded bedding).
Step 2: Conclusion.
Hence, the correct statement is that prod marks are found at the bottom of a bed.
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