At a lower pressure — approximately 4 GPa — methane and molecular hydrogen interact, forming co-crystals (where two molecules together create one crystal structure), and at 6 GPa, hydrates — CO-crystals made of methane and water — are forme
At a
lower pressure — approximately 4 GPa —
methane and molecular hydrogen interact, forming co-crystals (where two molecules together create one crystal structure), and
at 6 GPa, hydrates — CO-crystals made of methane and water — are forme
at 6 GPa, hydrates — CO-crystals made of
methane and water — are formed.
Natural
methane hydrates were first discovered by Russian scientists in the late 1960s in Siberian permafrost — where the ground is so cold that hydrates can form
at shallower depths and
at lower pressures than under the sea — and then, in the 1970s,
at the bottom of the Black Sea.