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Sea-floor terrains of Håkon Mosby Mud Volcano as surveyed by deep-tow video and still photography

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Abstract

 A survey of the submarine Håkon Mosby mud volcano (HMMV) area by photo and video cameras permits the classification and mapping of sea-floor terrains. Approximate concentric zoning is seen in the distribution of the terrains, which correlates well with morphostructural elements of the mud volcano. A relatively limited biological community, dominated by tubeworms (Pogonophora and Polychaeta) and demersal fish, exists on the HMMV. Photo and video images show no evidence for gas bubbles in the water column, although methane is present in the mud volcano sediments. White patches, which comprise over 75% of the sea floor in some areas, are interpreted to be bacterial mats and/or gas hydrates.

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Authors and Affiliations

  1. St. Petersburg State University, St. Petersburg, Russia, , , , , , RU

    A. Milkov

  2. VNIIOkeangeologia, St. Petersburg, Russia, , , , , , RU

    G. Cherkashev & G. Ginsburg

  3. Marine Geosciences Division, Naval Research Laboratory, Washington, DC, 22306, USA, , , , , , US

    P. Vogt

  4. Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia, , , , , , RU

    N. Chernova & A. Andriashev

Authors
  1. A. Milkov
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  2. P. Vogt
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  3. G. Cherkashev
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  4. G. Ginsburg
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  5. N. Chernova
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  6. A. Andriashev
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Milkov, A., Vogt, P., Cherkashev, G. et al. Sea-floor terrains of Håkon Mosby Mud Volcano as surveyed by deep-tow video and still photography. Geo-Marine Letters 19, 38–47 (1999). https://doi.org/10.1007/s003670050091

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  • DOI: https://doi.org/10.1007/s003670050091

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