Marginal sea

A marginal sea is a division of an ocean, partially enclosed by islands, archipelagos, or peninsulas, adjacent to or widely open to the open ocean at the surface, and/or bounded by submarine ridges on the sea floor.

Marginal seas of the Atlantic Ocean:

Marginal seas of the Indian Ocean:

Marginal seas of the Mediterranean Sea:

Marginal sea of the Black Sea:

Marginal seas of the Pacific Ocean:

Marginal seas of the Southern Ocean:

The Caribbean Sea is sometimes defined as a marginal sea, sometimes as a mediterranean sea.

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