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Encyclopedia of geology, five volume set, volume 1 5 (encyclopedia of geology series) ( PDFDrive ) 2305

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462 RUSSIA Figure Crustal provinces and terranes of the Siberian Craton (simplified and modified after Rozen) along the northern flank of the craton In addition, numerous diamondiferous kimberlites were emplaced into Archaean nuclei, reflecting the impact of MiddleLate Devonian plumes, in a similar way to the East European Craton Carboniferous and Permian rocks occur in the Vilyui and Tunguska basins In the Vilyui Basin, Middle Devonian rocks form thick grey clastic shallow-water and limnic-alluvial formations This setting persisted until the end of Jurassic time, when numerous coal beds accumulated in the Vilyui Basin At the end of the Jurassic and in the Early Cretaceous, orogenesis occurred in the Verkhoyansk Orogen, and a foredeep basin formed in its front In the Carboniferous to Permian, the Tunguska Basin was filled with clastic continental and shallow-water marine sediments with numerous coal beds The latest Permian and Triassic was dominated by mantle plume tectonics Large-scale flood basalt magmatism (often termed the Siberian Traps) took place in the north of the Siberian Craton and southern Taimyr (a probable northern continuation of the craton) The total thickness of basalts in the Tunguska Basin reached 2–4 km This was the largest intracontinental Phanerozoic magmatic event (Figure 6), and it affected an area extending from the northern Urals to Verkhoyansk and from Taimyr to Central Asia, revealing it as a superplume event Jurassic rocks occur in the Vilyui and Irkutsk Basins They also form a chain of foredeep basins between the Aldan and Stanovoy blocks Typical rocks are continental coal-bearing sediments The Stanovoy Block was an Andean-type margin in Jurassic times Cretaceous clastic rocks are known in the Verkhoyansk foredeep During Tertiary times, the Siberian Craton was relatively elevated, possibly in response to the IndiaAsia Himalayan collision The altitude of its plateaux was 1–1.5 km Tertiary sediments occur locally and consist mostly of continental clastic rocks The Popigai meteorite crater of Eocene age (80 km in diameter) occurs north of the Anabar Shield

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