Nickel degassing and end Permian extinction

Using 2D and 3D X-ray imagery of nickel sulfide from the Russian Noril’sk ore deposit and thermodynamic models, researchers found that nickel-rich sulfide droplets could have attached to escaping gas bubbles during the formation of Noril’sk ores, providing a potential mechanism for the release of buried nickel into the atmosphere, where it may have triggered the end Permian extinction, according to the authors. - Read at PNAS

Article #16-11086: “Role of degassing of the Noril’sk nickel deposits in the Permian–Triassic mass extinction event,” by Margaux Le Vaillant, Stephen J. Barnes, James E. Mungall, and Emma L. Mungall.