The Birekte terrane is a

terrane In geology, a terrane (; in full, a tectonostratigraphic terrane) is a crust fragment formed on a tectonic plate (or broken off from it) and accreted or " sutured" to crust lying on another plate. The crustal block or fragment preserves its d ...

located by the

Anabar Shield The Anabar Shield () is a shield in Siberia. It is an exposed basement of the Siberian Craton. Together with the Aldan Shield to the southeast, the Anabar Shield is one of the main features of the craton. On the surface it appears as an upland o ...

, in the north-eastern part of the

Siberian Craton Siberia, also known as Siberian Craton, Angaraland (or simply Angara) and Angarida, is an ancient craton in the heart of Siberia. Today forming the Central Siberian Plateau, it formed an independent landmass prior to its fusion into Pangea during ...

, in the basins of the Popigay,

Anabar Anabar may refer to: * Anabar Bay, Laptev Sea * Anabar Constituency, Nauru * Anabar District, Nauru * Anabar District, Russia, Sakha, Russia * Anabar Highway, Russia * Anabar Plateau, Russia * Anabar (river) The Anabar (, in its upper course ...

, Birekte and Olenyok rivers. It is defined entirely from geophysical data and is overlain by Riphean-Paleozoic platformal cover.

References

External links

Schematic map of ancient terrains and kimberlitic fields in the Siberian craton
{{coord missing, Russia Terranes Geology of Siberia