1. This diagram is mostly used for differentiating different types of kerogen . 2. The complex composition and chemistry of kerogen complicates the results. 3. General composition of oil shales constitutes inorganic matrix, bitumens, and kerogen . 4. They found that on average the oil is depleted to corresponding kerogen by 230. 5. Type IV kerogen contains mostly decomposed organic matter in the form of polycyclic aromatic hydrocarbons. 6. Kerogen can be heated, and yield up to of product per ton of rock.7. Kerogen subsequently undergoes thermal decomposition to hydrocarbons.8. Nevertheless, most research on hydrogen isotopes of kerogen show D enrichment with increasing maturity. 9. The chemical process of pyrolysis can convert the kerogen in oil shale into synthetic crude oil. 10. The name " kerogen " was introduced by the Scottish organic chemist Alexander Crum Brown in 1906.
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