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Methane clathrate
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Methane clathrate or, also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, methane gas, or gas hydrate, is a solid clathrate compound in which a large amount of metha
"Burning ice". Methane, released by heating, burns; water drips. Inset: clathrate structure (University of Göttingen, GZG. Abt. Kristallographie). Source: United States Geological Survey.
"Burning ice". Methane, released by heating, burns; water drips. Inset: clathrate structure (University of Göttingen, GZG. Abt. Kristallographie). Sou
microscope image
microscope image
Methane hydrate phase diagram. The horizontal axis shows temperature from −15 to 33 °C, the vertical axis shows pressure from 0 to 120,000 kilopascals
Methane hydrate phase diagram. The horizontal axis shows temperature from −15 to 33 °C, the vertical axis shows pressure from 0 to 120,000 kilopascals (0 to 1,184 atmospheres). Hydrate forms above the line. For example, at 4 °C hydrate forms above a pressure of about 50 atm/5000 kPa, found at about 500 m sea depth.
Gas hydrate-bearing sediment, from the subduction zone off Oregon
Gas hydrate-bearing sediment, from the subduction zone off Oregon
Methane
Videos
Methane is a chemical compound that has the chemical formula CH4. It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas. The abundance of methane on Earth makes it an
Methane clathrate
…natural gas hydrate, methane gas, 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. Originally thought to occur only in the outer regions of the Solar…
Methane bubbles can be burned on a wet hand without injury.
Methane bubbles can be burned on a wet hand without injury.
New-generation, reusable launch vehicles such as SpaceX Starship prefer using liquid methane (in combination with liquid oxygen, collectively known as
New-generation, reusable launch vehicles such as SpaceX Starship prefer using liquid methane (in combination with liquid oxygen, collectively known as methalox) as their primary propellant.
Global methane budget (2017). Shows natural sources and sinks (green), anthropogenic sources (orange), and mixed natural and anthropogenic sources (ha
Global methane budget (2017). Shows natural sources and sinks (green), anthropogenic sources (orange), and mixed natural and anthropogenic sources (hatched orange-green for 'biomass and biofuel burning').
Abiotic sources of methane[example needed] have been found in more than 20 countries and in several deep ocean regions so far.
Abiotic sources of methane[example needed] have been found in more than 20 countries and in several deep ocean regions so far.