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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. [7] The World Ocean. For example, the Law of the Sea states that all of the World Ocean is "sea", [8] [9] [10] [b] and this is ...
A category for oceans and/or seas that existed in the Earth's history Pages in category "Historical oceans" The following 40 pages are in this category, out of 40 total.
Although Europe is the world's second-smallest continent in terms of area, it has a very long coastline, and has arguably been influenced more by its maritime history than any other continent. Europe is uniquely situated between several navigable seas and intersected by navigable rivers running into them in a way which greatly facilitated the ...
Nevertheless, detrital zircon crystals dated to 4.4 Ga show evidence of having undergone contact with liquid water, suggesting that Earth already had oceans or seas at that time. [34] By the beginning of the Archean, Earth had cooled significantly.
The entire ocean, containing 97% of Earth's water, spans 70.8% of Earth's surface, [8] making it Earth's global ocean or world ocean. [23] [25] This makes Earth, along with its vibrant hydrosphere a "water world" [43] [44] or "ocean world", [45] [46] particularly in Earth's early history when the ocean is thought to have possibly covered Earth ...
Ocean exploration is a part of oceanography describing the exploration of ocean surfaces. Notable explorations were undertaken by the Greeks , the Phoenicians , the Romans , the Polynesians , Phytheas, the Vikings , Arabs and the Portuguese .
Rheic Ocean, the Paleozoic ocean between Gondwana and Laurussia; Slide Mountain Ocean, the Mesozoic ocean between the ancient Intermontane Islands (that is, Wrangellia) and North America; South Anuyi Ocean, Mesozoic ocean related to the formation of the Arctic Ocean; Tethys Ocean, the ocean between the ancient continents of Gondwana and Laurasia
Oceanography (from Ancient Greek ὠκεανός (ōkeanós) ' ocean ' and γραφή (graphḗ) ' writing '), also known as oceanology, sea science, ocean science, and marine science, is the scientific study of the ocean, including its physics, chemistry, biology, and geology.