Carbon in petroleum

F F compounds prepared from petroleum. The carbon in petroleum is millions of years and many half-lives older than the carbon in growing plants and is no longer radioactive. 

Source Reprinted from Cullis CF, Factors affecting the structure and properties of pyrolytic carbons, In Petroleum Derived Carbons, ACS Symposium Series, No.21, 228-236, 1975. 

Figure 2.5. Organic origin of carbon in petroleum salt domes.

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