Topographies Formed By Ocean Water

The Topographies Formed By Ocean Water are exactly the same as the landforms formed by rivers and underground water. The work of erosion by ocean waves is accomplished in five forms. These forms include abrasion, corrosion, abrasion, hydraulic action and wave pressure. The following topographies are formed by them –

Coastal Cliffs
Coastal Cave
Sea Arch
Cave Pillar or Stack
Pulin or Beach.
Bars
Connecting Bars
Coast Line
- Fiord Coast
- Rhea Coast
- Dalmatian coast
- Haifa Coast or Submerged Lowland Coast
- Out beach

also read : तिरंगा से सम्बन्धित महत्त्वपूर्ण तथ्य ( Important Facts Related to Tricolor )

1. Coastal Cliffs

The standing sea beach is called the coastal ledge or Bhrigu.

2. Coastal Cave

At those places along the coast, where there are rifts of rocks, faults and weak rocks are present, there is rapid erosion by ocean waves at those places. As a result of this erosion, coastal caves or caves are formed at those places.

3. Sea Arch

The rock located on the beach, whose middle part breaks off, and an arch-shaped structure is formed. are called sea arches.

4. Cave Pillar or Stack

When the roof of the sea arch also breaks down due to sea waves , the walls on either side of the arch stand as pillars . Which is called ocean column or stack.

5. Pulin or Beach

At the places along the seashore, sand, gravel, boulder etc., brought by the waves along with the tidal level and the beach line, get deposited. In this way the structure made of sand, gravel etc. is called Pulin or Beach.

6. Barrier

The ridge formed due to the deposition by sea waves or currents is called a barrier.

When it is away from the beach and parallel to it, then it is called offshore barrier.
When it is formed around an island, it is called a loop barrier.

also read : Landforms Formed By Glacial Erosion

7. Connecting Barrier

The barrier connecting the beach to the coast of an island or connecting any two remote beaches is called connecting barrier. The barrier joining an island to the coast is called tombolo.

The saline water of the sea is filled in the middle of the shores connecting any two shores of the sea, due to which a lake is formed. The lake thus formed is called lagoon lake. Chilika Lake in Orissa and Bembanad Lake in Kerala are examples.

8. Coast Line

The boundary line between the beach and the sea shore is called the coast line. Outwards from this line, that is, towards the sea, forms the beach. It can be of many types, the details of which are as follows –

i. Fiord Coast

When glacial highlands submerge under ocean water, forming a steep wall-like coast, it is called a fair coast. eg – Norway’s fjord coast.

ii. Rhea Coast

Riya coast is formed by the submergence of eroded highlands by rivers. These beaches continue to deepen towards the sea.

iii. Dalmatian Coast

The Dalmatian Coast of Yugoslavia |

iv. Haifa Coast or Submerged Lowland Coast

The coast formed by the submergence of low land in the coastal part is called submerged land coast or Haifa coast.

v. Out Beach

The beach formed due to the rise of the landmass or the fall of the sea level is called the released beach.

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