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Seismic reflection survey being conducted in Saudi Arabia, circa 1960.A controlled explosion generates seismic waves that are detected by geophones.. Visible surface features such as oil seeps, natural gas seeps, pockmarks (underwater craters caused by escaping gas) provide basic evidence of hydrocarbon generation (be it shallow or deep in the Earth).
Ball-and-stick model of the methane molecule, CH 4.Methane is part of a homologous series known as the alkanes, which contain single bonds only.. In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon.
Proven oil reserves in Iran, according to its government, rank fourth largest in the world at approximately as of 2013, although it ranks third if Canadian reserves of unconventional oil are excluded. [1]