Biogeochemical steps of hydrocarbon formation

Transformation of the initially deposited remains of living organisms started in the water columns and in the upper layers of bottom sediments of ancient seas. Random polymerization and condensation reactions of degraded biopolymers are believed to have formed the initial geopolymers, which contain humin, fulvic and humic acids. Until now these compounds (very typical for soil humus as well) are 

Formation of oil from kerogen is a disproportionation reaction related to a hydrogen-rich mobile phase and a hydrogen-depleted carbon residue. After crystalline 

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