Question

Which one of the following sedimentary structures is formed by rapid release of water?

• A. Ripple lamination
• B. Gutter cast
• C. Convolute lamination
• D. Prod mark

Hint:

Convolute lamination forms due to rapid water movement or deformation, often under high energy conditions, which can create intricate folds in sediment layers.

Answer 1

The Correct Option is C

Step 1: Understand Sedimentary Structures.
- Ripple lamination is formed by oscillatory water movements, typically in shallow water environments, but not necessarily due to rapid water release.
- Gutter cast is a sedimentary structure formed by rapid water release, especially during high-energy events like floods.
- Convolute lamination results from deformation under high pressure or rapid water movement, which can cause folding and complex structures in the sediment layers.
- Prod mark is an imprint from an organism and unrelated to water release.
Thus, the correct answer is (C) Convolute lamination.
Final Answer: \[ \boxed{\text{Convolute lamination}} \]