Geology of Siberia

southern part of Ural Mountains, Russia

In the geologic timescale, the Olenekian is an age in the Early Triassic epoch; in chronostratigraphy, it is a stage in the Lower Triassic series. It spans the time between Ma and Ma (million years ago). The Olenekian is sometimes divided into the Smithian and the Spathian subages or substages. The Olenekian follows the Induan and is followed by the Anisian (Middle Triassic).

region in Siberia

a series of continental rifts centered beneath Lake Baikal in southeastern Russia

Oil-bearing rock formation in Russia