Methane bubbles rise into a clear cylinder, designed for measuring gas flux, where they form a mixture of hydrate and gas.
Gas Flux
Image courtesy of the NOAA Office of Ocean Exploration and Research, Gulf of Mexico Expedition 2012. Download larger version (jpg, 1.7 MB).

Methane bubbles rise into a clear cylinder, designed for measuring gas flux, where they form a mixture of hydrate and gas.

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