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Methane clathrate (CH 4 ·5.75H 2 O) or (4CH 4 ·23H 2 O), also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, or gas hydrate, is a solid clathrate compound (more specifically, a clathrate hydrate) in which a large amount of methane is trapped within a crystal structure of water, forming a solid similar to ice.
Methane clathrate block embedded in the sediment of hydrate ridge, off Oregon, USA. Clathrate hydrates, or gas hydrates, clathrates, or hydrates, are crystalline water-based solids physically resembling ice, in which small non-polar molecules (typically gases) or polar molecules with large hydrophobic moieties are trapped inside "cages" of hydrogen bonded, frozen water molecules.
Layers of methane gas sit trapped below permafrost in Arctic regions, but if they’re released, it could spell trouble for the rest of the world.
[24] [25] [26] Other sources of methane include submarine taliks, river transport, ice complex retreat, submarine permafrost and decaying gas hydrate deposits. [27] Permafrost contains almost twice as much carbon as the atmosphere, [ 28 ] with ~20 Gt of permafrost-associated methane trapped in methane clathrates . [ 29 ]
The gas deposits are secured by the weight of the water. But if the water is disturbed, the gas could flare up from the bottom and wreak havoc on locals. Deadly gas trapped beneath lake at risk ...
Methane clathrate, also known commonly as methane hydrate, is a form of water ice that contains a large amount of methane within its crystal structure. Potentially large deposits of methane clathrate have been found under sediments on the ocean floors of the Earth, although the estimates of total resource size given by various experts differ by ...
This free gas may become trapped beneath the overlying hydrate layer, forming gas pockets, or reservoirs. The pressure from the presence of gas reservoirs impacts the stability of the hydrate layer. If this pressure is substantially changed, the stability of the methane layer above will be altered and may result in significant destabilization ...
Jul. 22—The June explosion which killed a contractor and destroyed a 1.5 million gallon water tank happened after a critical safety-check was not performed before welding started, according to a ...