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

Geo-Marine Letters

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Abstract

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

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Sea-floor methane blow-out and global firestorm at the K-T boundary
Series title:
Geo-Marine Letters
Volume
18
Issue:
4
Year Published:
1999
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Geo-Marine Letters
First page:
285
Last page:
291