Gas hydrate pingo

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Not to be confused with pingo landforms.

A gas hydrate pingo is a submarine

seafloor
.

Formation and Location

Methane, a common gas found in gas hydrate pingos.

Gas hydrate pingos contain reservoirs of gas hydrates, which are crystallized gas particles. The crystallized gas particles form when a gas particle is surrounded by water molecules.

lattice structure that encages the gas molecule when at low temperatures and high pressures (around 15 megapascals).[2][1] Most gas hydrates contain methane, while other rare gas hydrates contain hydrogen sulfate or carbon dioxide.[1] These submarine pingos are found along continental margins and in polar regions, especially in locations with methane seeps.[2] These locations often have permafrost that is below sea level, but this permafrost is not required for gas hydrate pingo formation.[3] An example of these different methods of pingo formation can be found on the coast of Angola, which formed from methane seeps, and off the Western Svalbard Margin, which formed from sub-sea permafrost.[2][3] Other examples of gas hydrate pingos can be found along the Chilean and Brazilian
margin.

Locations of gas hydrate pingos across the globe

Effects on Climate and Environment

seismic activity in their vicinity, since these formations are often along continental margins and other areas of seismic interest.[4]

Gas hydrate pingos and their surrounding regions are hosts to various organisms, including many types of

tubeworms that are associated with methane.[7]

References

  1. ^
    ISBN 978-0-12-227410-7
    , retrieved 2023-10-27
  2. ^
    ISSN 1943-2682
    .
  3. ^
    ISSN 1525-2027
    .
  4. ^
    ISSN 2076-3263
    .
  5. ISBN 978-3-030-12962-0
    .
  6. ^
    ISSN 1726-4170
    .
  7. doi:10.1016/j.margeo.2005.12.005
    .
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