Figure F25. S2 vs. total organic carbon (TOC) and hydrogen index (HI) vs. TOC in selected samples from Site 1234. Boundaries for Types I, II, and III kerogen fields are taken from Langford and Blanc-Valleron (1990).

Figure F25. S₂ vs. total organic carbon (TOC) and hydrogen index (HI) vs. TOC in selected samples from Site 1234. Boundaries for Types I, II, and III kerogen fields are taken from Langford and Blanc-Valleron (1990).