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Gas hydrate accumulation at the Hakon Mosby Mud Volcano

Geo-Marine Letters

By:
, , , , , , , , and
DOI: 10.1007/s003670050093

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Abstract

Gas hydrate (GH) accumulation is characterized and modeled for the Hakon Mosby mud volcano, ca. 1.5 km across, located on the Norway-Barents-Svalbard margin. Pore water chemical and isotopic results based on shallow sediment cores as well as geothermal and geomorphological data suggest that the GH accumulation is of a concentric pattern controlled by and formed essentially from the ascending mud volcano fluid. The gas hydrate content of sediment peaks at 25% by volume, averaging about 1.2% throughout the accumulation. The amount of hydrate methane is estimated at ca. 108 m3 STP, which could account for about 1-10% of the gas that has escaped from the volcano since its origin.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Gas hydrate accumulation at the Hakon Mosby Mud Volcano
Series title:
Geo-Marine Letters
DOI:
10.1007/s003670050093
Volume
19
Issue:
1-2
Year Published:
1999
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Geo-Marine Letters
First page:
57
Last page:
67
Number of Pages:
11