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Zorluk: OrtaOceans, Coastal Processes, and Coastal Landforms

Along a sheltered coastline, longshore drift continuously transports beach sediments along the shoreline until a depositional ridge extends out and ties an offshore island directly to the mainland. Which of the following coastal landforms is formed by this process?

  1. A
    Oxbow lake
  2. TomboloCevap
  3. C
    Scree slope
  4. D
    Metamorphic slate terrace

Cevap

The feature formed when a wave-deposited spit connects an offshore island to the mainland is called a tombolo.
A tombolo is formed when waves refract around an offshore island, creating a low-energy zone behind it. Longshore drift deposits sand and gravel in this zone, gradually building a spit that extends until it connects the mainland to the island.

Adım Adım Çözüm

1
Identify the process and location described in the question.
The process is longshore drift and wave deposition occurring at a coastal margin.
Sediments are being moved along the shoreline and accumulated near an offshore island.
2
Analyze the landform resulting from connecting an offshore island to the mainland.
A depositional ridge of sand or gravel joining an island to the coast is defined as a tombolo.
As waves refract around the offshore island, low-energy deposition builds up sediment until it bridges the gap between the island and the main coastline.

Anahtar Kavram

Coastal Depositional Landforms (Tombolo Formation)
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Konular

Oceans, Coastal Processes, and Coastal Landforms

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