Question

Which of following combinations of sedimentary environments and their features is/are CORRECTLY matched?

• A. Fluvial – tabular cross-stratification
• B. Submarine fan – rain print
• C. Beach – planar lamination
• D. Supratidal – mud-cracks

Hint:

To match sedimentary environments, focus on the depositional features that are characteristic of each environment, like cross-stratification in fluvial or mud-cracks in supratidal zones.

Answer 1

The Correct Option is A, D

Step 1: Analyzing the Features.
- Fluvial – tabular cross-stratification: This is correct. In fluvial environments, water flows in channels, and sediment is deposited in a way that often results in tabular cross-stratification.
- Submarine fan – rain print: Incorrect. Rain prints are typically associated with terrestrial environments, not submarine fans, which have features like graded bedding and turbidity currents.
- Beach – planar lamination: Incorrect. Beaches tend to exhibit structures like cross-bedding and ripple marks, not planar lamination, which is more characteristic of environments like lake beds or tidal flats.
- Supratidal – mud-cracks: Correct. Mud-cracks are commonly found in supratidal environments, where evaporation causes wet mud to dry and crack.
Final Answer: \[ \boxed{(A), (D)} \]