Which one of the following is NOT a coastal depositional feature ?

Coastal landforms are categorized into erosional and depositional features. Depositional features are formed by the accumulation of sediment transported by waves and longshore drift. These include sand bars (submerged ridges), spits (elongated deposits extending into open water), and tombolos (sandy isthmuses connecting an island to the mainland) [4]. Conversely, a stack (or sea stack) is a prominent erosional feature. It is formed when hydraulic action and abrasion erode a headland, eventually creating a sea arch that collapses, leaving an isolated pillar of rock standing in the sea [3]. While beaches, bars, and spits represent the constructive work of the sea, stacks represent the destructive or erosional phase of coastal evolution [3]. Therefore, a stack is not a depositional feature.

Sources

1. [1] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 10: Coastal Landforms > Goastal Features of Deposition > p. 91
2. [2] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 6: Landforms and their Evolution > HIGH ROCKY COASTS > p. 57
3. [4] https://en.wikipedia.org/wiki/Tombolo
4. [3] https://www.britannica.com/science/coastal-landform/Landforms-of-erosional-coasts