Sea-floor methane blow-out and global firestorm at the K–T boundary

摘要: A previously unsuspected source of fuel for the global firestorm recorded by soot in Cretaceous–Tertiary impact layer may have resided methane gas associated with hydrate end-Cretaceous seafloor. End-Cretaceous impact-generated shock and megawaves would had potential to initiate worldwide oceanic blow-outs from these deposits. The likely ignited incompletely combusted. This large burst been followed longer-term release as a part positive thermal feedback disturbed ocean-atmosphere system.