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Description: Rock Eval data are plotted on a Van Krevelen diagram. Depending on their position, samples can be typed as Type I, II or III source rock. Identification of source rock type from this diagram can not be made without consideration of the maturity of the source rock.
Words in this image: hydrogen, index, HC, organic C, increasing, maturity, gas, oil, prone, type, III, II, I Oxygen, CO2