Figure F18. Rock-Eval van Krevelen–type diagram of sediment samples from Holes 1258A, 1258B, and 1258C. Organic matter appears to be predominantly Type II algal material for Unit IV and represents a mixture of Types II and III for Unit V (gray shaded area).

Figure F18. Rock-Eval van Krevelen–type diagram of sediment samples from Holes 1258A, 1258B, and 1258C. Organic matter appears to be predominantly Type II algal material for Unit IV and represents a mixture of Types II and III for Unit V (gray shaded area).