assumption of the linkage between the age of volcanic rocks within the Siberian Traps, along with rock samples from other southern regions to the Permian–Triassic mass extinction event. Mineral deposits The giant Norilsk-Talnakh nickel–copper–palladium deposit formed within the magma conduits in the most complete part of the Siberian Traps. It has been linked to the Permian–Triassic extinction event, which occurred approximately 251.4 million years ago, based on large amounts of nickel and other elements found in rock beds that were laid down after the extinction occurred. The method used to correlate the extinction event with the surplus amount of nickel located in the Siberian Traps compares the timeline of the magmatism within the traps and the timeline of the extinction itself. Before the linkage between magmatism and the extinction event was discovered, it was hypothesized that the mass extinction and volcanism occurred at the same time due to the linkages in rock composition. See also List of flood basalt provinces Deccan Traps Emeishan Traps Viluy Traps Trap rock References External links "The Siberian Traps" by Richard Cowen "The Siberian Traps Large Igneous Province" Large igneous provinces Volcanism of Russia Permian–Triassic extinction event Geography of Siberia Permian volcanism Triassic volcanism Permian paleontological sites Events that forced the climate