Kerogen Type II
Kerogen Type II : Exinite; (naphthenic) has an intermediate hydrogen to carbon and oxygen to carbon ratio. Usually formed from marine organic matter (planton) in a reducing environment. Oil and gas prone with yields of 40 to 60%. Kerogen Type III; Vitrinite; has a low hydrogen to carbon and high oxygen to carbon ratio. Usually dry, low quality gas prone with low yields. Source is terrestrial vascular plants. Humic coal precursor
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