Flach- und Tiefenwassergashydrate in Sedimenten polarer Kontinentalränder des Nordatlantiks : geophysikalische Signaturen der Instabilität

Mienert, Jürgen and Posewang, Jörg (1997) Flach- und Tiefenwassergashydrate in Sedimenten polarer Kontinentalränder des Nordatlantiks : geophysikalische Signaturen der Instabilität Geowissenschaften, 15 (9). pp. 287-291.

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Abstract

Destabilization of hydrates from polar continental margins of the North Atlantic are geophysically detectable within hydrate stabilization zones (HSZ). High-frequency seismic surveys of structures and propagations of compressional wave velocities are changing the classic understanding of the hydrate stability zone to an instable one. The results are important in two respects: first, shallow-water gas hydrates can substantially contribute to the transfer of the intensive greenhouse gas methane to the atmosphere, and second, deep-water gas hydrates indicate destabilization processes. These deep-water gas hydrates paly an important role regarding the instability of the continental margins, whereas their influence on the greenhouse effect is probably secondary.

Document Type: Article
Additional Information: Zeitschrift vorhanden in der GEOMAR-Bibliothek - Journal available in the GEOMAR Library
Keywords: Gas hydrates; Polar continental margin; Hydrate stability
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-P-OZ Paleo-Oceanography
Refereed: Yes
ISSN: 0933-0704
Projects: SFB313, ENAM
Date Deposited: 07 Nov 2014 20:33
Last Modified: 20 Jan 2016 09:49
URI: http://eprints.uni-kiel.de/id/eprint/25990

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