Khanty or Khanty-Mansi Ocean was a small ocean located between

Baltica Baltica is a paleocontinent that formed in the Paleoproterozoic and now constitutes northwestern Eurasia, or Europe north of the Trans-European Suture Zone and west of the Ural Mountains. The thick core of Baltica, the East European Craton, ...

and an island arc (the Kipchak Arc) near

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part ...

, from near the end of the

Precambrian The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of th ...

time to the

Silurian The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleoz ...

. The ocean is named after two indigenous peoples in Siberia (

Khanty The Khanty ( Khanty: ханти, ''hanti''), also known in older literature as Ostyaks (russian: остяки) are a Ugric indigenous people, living in Khanty–Mansi Autonomous Okrug, a region historically known as "Yugra" in Russia, togethe ...

and

Mansi Mansi may refer to: People * Mansi people, an indigenous people living in Tyumen Oblast, Russia ** Mansi language * Giovanni Domenico Mansi Gian (Giovanni) Domenico Mansi (16 February 1692 – 27 September 1769) was an Italian prelate, theolog ...

). The Khanty Ocean was bordered by a series of oceans:

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 ...

to the north, Proto-Tethys to the northeast, and

Paleo-Tethys The Paleo-Tethys or Palaeo-Tethys Ocean was an ocean located along the northern margin of the paleocontinent Gondwana that started to open during the Middle Cambrian, grew throughout the Paleozoic, and finally closed during the Late Triassic; exi ...

to the south and east. The ocean formed when the landmass of Proto-Laurasia (shortly after the break-up of

Pannotia Pannotia (from Greek: '' pan-'', "all", '' -nótos'', "south"; meaning "all southern land"), also known as the Vendian supercontinent, Greater Gondwana, and the Pan-African supercontinent, was a relatively short-lived Neoproterozoic supercontine ...

, about 600 mya) rifted and created three separated continents –

Laurentia Laurentia or the North American Craton is a large continental craton that forms the ancient geological core of North America. Many times in its past, Laurentia has been a separate continent, as it is now in the form of North America, althoug ...

, Baltica, and Siberia. Khanty's sister ocean, the

Iapetus Ocean The Iapetus Ocean (; ) was an ocean that existed in the late Neoproterozoic and early Paleozoic eras of the geologic timescale (between 600 and 400 million years ago). The Iapetus Ocean was situated in the southern hemisphere, between the paleo ...

also formed, between Laurentia and Baltica. The Khanty Ocean closed when an

island arc Island arcs are long chains of active volcanoes with intense seismic activity found along convergent tectonic plate boundaries. Most island arcs originate on oceanic crust and have resulted from the descent of the lithosphere into the mantle alon ...

called the Sakmarian Arc collided with Baltica. At the northeastern end of the arc was a new ocean, the

Ural Ocean The Ural Ocean (also called the Uralic Ocean) was a small, ancient ocean that was situated between Siberia and Baltica. The ocean formed in the Late Ordovician epoch, when large islands from Siberia collided with Baltica, which was then part of ...

References

Historical oceans Proterozoic Cambrian paleogeography Ordovician paleogeography Silurian bodies of water Natural history of Asia Natural history of Europe {{palaeo-geo-stub

See also

References