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AAPG Bulletin
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AAPG Bulletin; Year: 2018; Issue: June DOI: 10.1306/08291717097
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Figure 5. Changes in reflectance of immature samples subjected to hydrous pyrolysis at various temperatures for 72 hr reported in this study (colored symbols and curves) with vitrinite (Ro) and suppressed-Ro trends from Lewan (1985, 1993a) as shown in Figure 4B. (A) Results of Ro for coals from this study with spline curve fits. (B) Solid-bitumen reflectance (BRo) results for solid bitumen with sigmoid curves from this study. (C) Remaining BRo results from this study for solid bitumen, with some samples showing sigmoid curves as similar to (B) and other samples with more variable results. Oven temperatures are assumed to be accurate to ±1°C.
Figure 5. Changes in reflectance of immature samples subjected to hydrous pyrolysis at various temperatures for 72 hr reported in this study (colored symbols and curves) with vitrinite (Ro) and suppressed-Ro trends from Lewan (1985, 1993a) as shown in Figure 4B. (A) Results of Ro for coals from this study with spline curve fits. (B) Solid-bitumen reflectance (BRo) results for solid bitumen with sigmoid curves from this study. (C) Remaining BRo results from this study for solid bitumen, with some samples showing sigmoid curves as similar to (B) and other samples with more variable results. Oven temperatures are assumed to be accurate to ±1°C.