periods of Siberian Traps activity have been linked to smaller biotic crises, including the Smithian-Spathian, Olenekian-Anisian, Middle-Late Anisian, and Anisian-Ladinian extinction events. Today, the area is covered by about 7 e6km2 of basaltic rock, with a volume of around 4 e6km³.

Etymology

The term "trap" has been used in geology

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