Question

Which one of the following sedimentary structures is mostly found in delta?

• A. Convolute bedding
• B. Graded bedding
• C. Ripple lamination
• D. Cross bedding

Hint:

Cross bedding commonly forms in current-dominated depositional environments such as rivers and deltas.

Answer 1

The Correct Option is D

Concept:
Deltas are depositional environments formed where rivers enter standing bodies of water such as lakes or seas.

Step 1: Understand delta deposition.
In deltaic environments, sediments are deposited by flowing water, distributary channels and current action.

Step 2: Identify common sedimentary structure.
Cross bedding is commonly formed by migration of ripples, dunes or bars under current action. \[ \text{Deltaic current deposition} \Rightarrow \text{Cross bedding} \]

Step 3: Final answer.
Thus, the sedimentary structure mostly found in delta among the given options is cross bedding. \[ \therefore \text{Correct Answer is (D)} \]