ГИДРАТООБРАЗОВАНИЕ В МЕРЗЛЫХ И ОТТАИВАЮЩИХ МЕТАНОНАСЫЩЕННЫХ ПОРОДАХ

Translated title of the contribution: Hydrate formation in frozen and thawing methane-saturated sediments

E. M. Chuvilin, D. A. Davletshina, M. V. Lupachik

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    The formation of pore gas hydrates in frozen and thawing sand and silt sampled in permafrost areas has been studied in experiments using a special system. As demonstrated by the experimental results, gas hydrates form rapidly in gas-saturated sediments at constant negative temperatures from 0 to -8 °C. The accumulation kinetics of pore gas hydrates in permafrost has multiple controls: temperature, initial ice saturation, and salinity of soils, as well as type of hydrate-forming gas. The process can resume after its decay due to melting of residual pore ice not yet converted to hydrate.

    Translated title of the contributionHydrate formation in frozen and thawing methane-saturated sediments
    Original languageRussian
    Pages (from-to)50-61
    Number of pages12
    JournalEarth's Cryosphere
    Volume23
    Issue number2
    DOIs
    Publication statusPublished - 2019

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