Natural gas deposits
Natural gas is found enclosed in the fine pores of the red Permian sandstone, and therefore not in large pockets or bells. The rock formation is under a high pressure of 350 bars and a temperature of 130°C. The natural gas was formed in the Carboniferous Period, but rose to the Permian formation over the years. It contains approximately 90% methane (CH4), which is also called marsh gas or mine gas, depending upon where it is found.
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