Abstract
On the southwestern Barents Sea shelf, sediments containing gas hydrates that overlie free gas have been inferred from multichannel seismic data. The volume of suspected gas hydrate is tentatively estimated to about 1.9×108 m3. The gas hydrate zone probably formed from thermogenic gas leaking from a deeper source. The hydrate zone may have thickened during the Neogene by including gas originally trapped as free gas below the hydrate following a significant downward migration of the isotherms caused by erosion and/or subsidence. Within the present oceanographic conditions, gas hydrate is suspected to be stable or slowly decomposing.
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Received: 20 December 1996 / Revision received: 20 August 1997
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Laberg, J., Andreassen, K. & Knutsen, SM. Inferred gas hydrate on the Barents Sea shelf — a model for its formation and a volume estimate. Geo-Marine Letters 18, 26–33 (1998). https://doi.org/10.1007/s003670050048
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DOI: https://doi.org/10.1007/s003670050048