Definition: Oil shale and oil sands (Code 2410)
Energy
Oil shale and oil sands are sedimentary rock which contains organic matter in the form of kerogen.
Kerogen is a waxy hydrocarbon-rich material regarded as a precursor of petroleum. Oil shale may be burned directly or processed by heating to extract shale oil.
Source:
Joint International Energy Agency/Eurostat/United Nations Economic Commission For Europe Annual Questionnaire On Solid Fossil Fuels And Manufactured Gases
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