Superocean on:
[Wikipedia]
[Google]
[Amazon]
A superocean is an
A superocean is an ocean
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the wo ...
that surrounds a supercontinent
In geology, a supercontinent is the assembly of most or all of Earth's continental blocks or cratons to form a single large landmass. However, some geologists use a different definition, "a grouping of formerly dispersed continents", which leav ...
. It is less commonly defined as any ocean larger than the current Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the contin ...
. Named global superoceans include Mirovia, which surrounded the supercontinent Rodinia, and Panthalassa
Panthalassa, also known as the Panthalassic Ocean or Panthalassan Ocean (from Greek "all" and "sea"), was the superocean that surrounded the supercontinent Pangaea, the latest in a series of supercontinents in the history of Earth. During th ...
, which surrounded the supercontinent Pangaea
Pangaea or Pangea () was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from the earlier continental units of Gondwana, Euramerica and Siberia during the Carboniferous approximately 335 million y ...
. Pannotia and Columbia, along with landmasses before Columbia (such as Ur and Kenorland
Kenorland was one of the earliest known supercontinents on Earth. It is thought to have formed during the Neoarchaean Era c. 2.72 billion years ago (2.72 Ga) by the accretion of Neoarchaean cratons and the formation of new continental crust. ...
), were also surrounded by superoceans.
As surface water moves unobstructed east to west in superoceans, it tends to warm from the exposure to sunlight so that the western edge of the ocean is warmer than the eastern. Additionally, seasonal changes in temperature, which would have been significantly more rapid inland, probably caused powerful monsoon
A monsoon () is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with annual latitudinal osci ...
s. In general, however, the mechanics of superoceans are not well understood.
List of superoceans
* Nealbara/Gyrosia (Vaalbara
Vaalbara was an Archean supercontinent consisting of the Kaapvaal Craton (now in eastern South Africa) and the Pilbara Craton (now in north-western Western Australia). E. S. Cheney derived the name from the last four letters of each craton's name ...
/ Ur) (4.404–1.071 Ga)
* Lerova (Kenorland
Kenorland was one of the earliest known supercontinents on Earth. It is thought to have formed during the Neoarchaean Era c. 2.72 billion years ago (2.72 Ga) by the accretion of Neoarchaean cratons and the formation of new continental crust. ...
) (2.523–1.805 Ga)
* Atlanta-Pacifica Ocean (Atlic Ocean) ( Columbia) (1.41–1.065 Ga)
* Mirovia ( Rodinia) (1,380–600 Ma)
* Pan-African Ocean
The Pan-African Ocean is a hypothesized paleo-ocean whose closure created the supercontinent of Pannotia. The ocean may have existed before the break-up of the supercontinent of Rodinia. The ocean closed before the beginning of the Phanerozoic ...
( Rodinia/ Pannotia) (987.5-605 Ma)
* Panthalassa
Panthalassa, also known as the Panthalassic Ocean or Panthalassan Ocean (from Greek "all" and "sea"), was the superocean that surrounded the supercontinent Pangaea, the latest in a series of supercontinents in the history of Earth. During th ...
( Pannotia/Pangaea
Pangaea or Pangea () was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from the earlier continental units of Gondwana, Euramerica and Siberia during the Carboniferous approximately 335 million y ...
) (750–173 Ma)
Possible Future Superoceans
*Indo
Indo may refer to:
* Indo-, a prefix indicating India or the Indian Subcontinent
* Indonesia, a country in Asia
** INDO LINES, callsign of Indonesian Airlines
** Indo people, people of mixed European and Indonesian ancestry
** Indo cuisine, fusion ...
-Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...
(Amasia Amasia may refer to the following places:
* Amasya, a city in Northern Turkey
** Amasya Province, which contains the city
** Amasea (titular see), the former Metropolitan Archbishopric with see there, now a Latin Catholic titular see
* Amasia, Sh ...
)
* Afro
The afro is a hair type created by natural growth of kinky hair, or specifically styled with chemical curling products by individuals with naturally curly or straight hair.Garland, Phyl"Is The Afro On Its Way Out?" ''Ebony'', February 1973. ...
-Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...
(Novopangaea
Novopangaea or Novopangea ( Greco-Latin for "New Pangaea") is a possible future supercontinent postulated by Roy Livermore in the late 1990s. It assumes closure of the Pacific,Wilkins, Alasdair.A Geological History of Supercontinents on Planet ...
)
* Mega or Super Pacific Ocean (Pangaea Proxima
Pangaea Proxima (also called Pangaea Ultima, Neopangaea, and Pangaea II) is a possible future supercontinent configuration. Consistent with the supercontinent cycle, Pangaea Proxima could occur within the next 200 million years. This potential co ...
)
* Baikal Ocean (Pan-Asian Ocean) ( Aurica)
See also
*World Ocean
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the worl ...
References
External links
* {{List of seas Historical oceans Plate tectonics