Gas hydrate accumulation at the Hakon Mosby Mud Volcano

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.

Authors
Ginsburg G.D.1 , Milkov A.V.1, 2 , Soloviev V.A.1 , Egorov A.V.3 , Cherkashev G.A.1 , Vogt P.R.4 , Crane K.5 , Lorenson T.D.6 , Khutorskoy M.D. 7
Number of issue
1-2
Language
English
Pages
57-67
Status
Published
Volume
19
Year
1999
Organizations
  • 1 VNIIOkeangeologia, Angliyskiy prospekt 1, St. Petersburg 190121, Russian Federation
  • 2 St. Petersburg State University, Universitetskaya nab, 7/9, St. Petersburg 199034, Russian Federation
  • 3 Institute of Oceanology, Nakhimovskiy prospekt 36, Moscow 117218, Russian Federation
  • 4 Marine Geosciences Division, Naval Research Laboratory, Code 7420, Washington, DC 20375, United States
  • 5 Hunter College, CUNY, 695 Park Ave., New York, NY 10021, United States
  • 6 US Geological Survey, MS-999, 345 Middlefield Rd., Menlo Park, CA 94025, United States
  • 7 Russ. Univ. of Peoples Friendship, Miklukho-Maklaya Str., 18, Moscow 117198, Russian Federation
Keywords
continental margin; deep-sea sediment; gas hydrate; mud volcano; Barents Sea
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/528/