Figure 19. Rock-Eval Van Krevelen–type diagram of sediments from Hole 1083A. Organic matter appears to be type II algal material that has been variably oxidized. HI = milligrams of hydrocarbons per gram of organic carbon; OI = milligrams of CO2 per gram of organic carbon.

Figure 19. Rock-Eval Van Krevelen–type diagram of sediments from Hole 1083A. Organic matter appears to be type II algal material that has been variably oxidized. HI = milligrams of hydrocarbons per gram of organic carbon; OI = milligrams of CO₂ per gram of organic carbon.