Siberia, also known as Siberian Craton, Angaraland (or simply Angara) and Angarida, is an ancient

craton A craton ( , , or ; from "strength") is an old and stable part of the continental lithosphere, which consists of Earth's two topmost layers, the crust and the uppermost mantle. Having often survived cycles of merging and rifting of contine ...

in the heart of

Siberia Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states ...

. Today forming the Central Siberian Plateau, it formed an independent landmass prior to its fusion into Pangea during the Late

Carboniferous The Carboniferous ( ) is a Geologic time scale, geologic period and System (stratigraphy), system of the Paleozoic era (geology), era that spans 60 million years, from the end of the Devonian Period Ma (million years ago) to the beginning of the ...

Permian The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years, from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya. It is the s ...

. The Verkhoyansk Sea, a passive continental margin, was fringing the Siberian Craton to the east in what is now the East Siberian Lowland. Angaraland was named in the 1880s by Austrian geologist Eduard Suess who erroneously believed that in the

Paleozoic The Paleozoic ( , , ; or Palaeozoic) Era is the first of three Era (geology), geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma a ...

Era there were two large continents in the Northern Hemisphere: "Atlantis", which was North America connected to Europe via a peninsula (Greenland and Iceland), and "Angara-land", which would have been eastern Asia, named after the Angara River in Siberia.

Precambrian history

About 2.5 billion years ago (in the Siderian Period), Siberia was part of a continent called Arctica, along with the

Canadian Shield The Canadian Shield ( ), also called the Laurentian Shield or the Laurentian Plateau, is a geologic shield, a large area of exposed Precambrian igneous and high-grade metamorphic rocks. It forms the North American Craton (or Laurentia), th ...

. Around 1.1 billion years ago (in the Stenian Period), Siberia became part of the

supercontinent In geology, a supercontinent is the assembly of most or all of Earth's continent, continental blocks or cratons to form a single large landmass. However, some geologists use a different definition, "a grouping of formerly dispersed continents", ...

of Rodinia, a state of affairs which lasted until the Tonian about 750 million years ago when it broke up, and Siberia became part of the landmass of Protolaurasia. During the

Ediacaran The Ediacaran ( ) is a geological period of the Neoproterozoic geologic era, Era that spans 96 million years from the end of the Cryogenian Period at 635 Million years ago, Mya to the beginning of the Cambrian Period at 538.8 Mya. It is the last ...

Period around 600 million years ago, Protolaurasia became part of the southern supercontinent of Pannotia but around 550 million years ago, both Pannotia and Protolaurasia split up to become the continents of Laurentia, Baltica and Siberia.

Paleozoic history

Siberia was an independent continent through the early Paleozoic until, during the

Period, it collided with the minor continent of Kazakhstania. A subsequent collision with Euramerica/Laurussia during the Late

formed Pangea.

Mesozoic and Cenozoic history

Pangaea split up during the

Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. ...

though Siberia stayed with Laurasia. Laurasia gradually split up during the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...

with Siberia remaining part of present-day northeastern

Eurasia Eurasia ( , ) is a continental area on Earth, comprising all of Europe and Asia. According to some geographers, Physical geography, physiographically, Eurasia is a single supercontinent. The concept of Europe and Asia as distinct continents d ...

. Today, Siberia forms part of the landmass of

Afro-Eurasia Afro-Eurasia (also Afroeurasia and Eurafrasia) is a landmass comprising the continents of Africa, Asia, and Europe. The terms are compound (linguistics), compound words of the names of its constituent parts. Afro-Eurasia has also been called th ...

. To the east it is joined to the North American Plate at the Chersky Range. In around 250 million years from now Siberia may be in the

subtropical The subtropical zones or subtropics are geographical zone, geographical and Köppen climate classification, climate zones immediately to the Northern Hemisphere, north and Southern Hemisphere, south of the tropics. Geographically part of the Ge ...

region and part of the new supercontinent of Pangaea Proxima.

Features

* Akitkan Orogen * Aldan Shield * Anabar Shield * Birekte terrane * Daldyn terrane * Magan terrane * Olenyok Uplift * Stanovoy tectonic zoneYAKUTIAN KIMBERLITE PROVINCE: POSITION IN THE STRUCTURE OF THE SIBERIAN CRATON AND COMPOSITION OF THE UPPER AND LOWER CRUST
/ref> * Tunguska Basin * Tungus terrane

References

External links

* (History of Siberia as well as other parts of Asia) Historical continents Tectonic plates Historical tectonic plates

Continent A continent is any of several large geographical regions. Continents are generally identified by convention (norm), convention rather than any strict criteria. A continent could be a single large landmass, a part of a very large landmass, as ...